The Command Access Technologies ETH6W4040 626 CH-BB79 RC58 Electrified Power Transfer Hinge routes low-voltage wiring invisibly from a commercial door frame into the door through an integrated hinge harness. This 4" x 4", five-knuckle, standard-weight, full-mortise energy-transfer hinge has 5/8" radius corners (RC58), a 626 / US26D Satin Chrome finish and a CH-BB79 steel-base configuration. Use it for properly matched access-control systems where a concealed connection between the door jamb and an electrified lock, trim or low-current door-mounted accessory is required.

Important size and corner identification: This exact model is 4" high by 4" wide with 5/8" rounded corners. It is not the 4" x 4" square-corner version, a 1/4" radius version, or the larger 4-1/2" x 4" or 4-1/2" x 4-1/2" hinge. Before ordering, verify the existing door and frame mortises, corner radius, screw-hole pattern, hinge thickness and manufacturer hardware template.

Electrical configuration: The ETH6W has six 26 AWG conductors (6 x 26-gauge). Do not confuse it with ETH6WH, which uses a different heavy-wire arrangement of two 18 AWG power conductors and four 28 AWG control conductors. Evaluate your lock's current draw, start-up requirements, wire assignment and voltage drop before selecting an energy-transfer hinge.

Features and Benefits

• Concealed 6-wire transfer: Six insulated 26 AWG wires create a protected pathway from the frame to compatible electrified hardware mounted in the door.
• 4" x 4" full-mortise hinge: Fits the correct commercial butt-hinge preparation when the door and frame are templated for this exact size.
• RC58 rounded corners: The 5/8" radius corner preparation is a defining feature of this part; it is not the same as a square-corner hinge.
• Five-knuckle, standard-weight construction: Provides the specified 5-knuckle commercial hinge format; verify required hinge quantity and load capacity against the door schedule.
• 626 / US26D Satin Chrome: Satin chromium-plated appearance suitable for matching compatible commercial hardware finished in 626.
• CH-BB79 steel-base configuration: Match the manufacturer's exact hinge construction and template, including hinge-bearing requirements, with the approved hardware schedule.
• Access-control integration: A discreet alternative to exposed wiring loops for properly rated electric mortise locks, electric cylindrical locks, access-control sensors, electric trim and monitoring circuits.
• Low-voltage wire specifications: Published Command Access ETH6W family data describes a 1 amp continuous at 24VDC per specified pair rating; observe the latest factory instructions and all pair/connector limitations.
• Protected harness routing: Manufacturer family literature identifies a center-located wire access opening and a non-conductive wire-access cap intended to reduce conductor damage.
• Lead availability: Command Access describes a 4-foot lead option for the energy-transfer hinge family; confirm the exact wire-tail/connector package before purchase.
• Commercial manufacturer support: The energy-transfer family is advertised with a 3-year manufacturer warranty and available UL-F listed configurations, subject to the exact part, current listing and warranty terms.

Product Specifications

Recommended Commercial Applications

• Compatible electrified cylindrical and mortise locks
• Electric exit-device trim and properly rated low-current control connections
• Door-mounted access-control readers, sensors or status-indication devices
• Door position or latch monitoring circuits using appropriate wire allocation
• Commercial and institutional door openings requiring discreet jamb-to-door electrical transfer
• Replacement for an existing approved 4" x 4", 5/8" radius energy-transfer hinge with matching wire specifications

Electrical caution: Six 26 AWG conductors are not interchangeable with a heavy-gauge two-wire power pair. Electrified latch-retraction systems, high-current solenoids and other motor-driven devices may require heavier conductors, a different transfer hinge, compatible power-control modules or a separate listed transfer assembly. Confirm the connected device's continuous and peak current, voltage, cable length and manufacturer requirements prior to ordering.

Selection and Installation Checklist

1. Check the mortise size: Confirm 4" height and 4" width. Do not order based solely on the similar ETH6W4540 or ETH6W4545 model numbers.
2. Match corner preparation: Confirm 5/8" radius (RC58) on the door and frame; square or other radius corners are a different preparation.
3. Confirm finish and chassis: Select 626 Satin Chrome and the specified CH-BB79 steel-base version to match the hardware schedule.
4. Check wiring suitability: Use the six 26 AWG conductors only within the manufacturer's specified electrical ratings; verify circuit requirements, startup current, voltage drop and connector/wire assignments.
5. Use the manufacturer template: Prepare approved frame and door wiring raceways; avoid cutting or pinching the harness as the hinge leaves are fastened.
6. Test the opening: Confirm free door movement, electrical continuity, proper lock/trim operation, required egress behavior and any fire-door hardware requirements.

Included and Not Included

Included: One Command Access ETH6W4040 626 CH-BB79 RC58, 4" x 4" power-transfer hinge with 5/8" radius corners, 626 Satin Chrome finish and a concealed six-conductor 26 AWG harness. Confirm supplied lead length, connectors and mounting hardware against the manufacturer's order confirmation.

Not included: Electrified lockset, panic/exit device, latch-retraction motor, power supply, access-control controller, door, frame, additional cable runs or unrelated mounting accessories. These may require separate purchase.

The Command Access Technologies ETH6W4040 626 CH-BB79 Electrified Energy Transfer Hinge conceals six low-voltage conductors inside a commercial full-mortise hinge so wiring can pass between a door frame and a moving door leaf without an exposed cord or wire loop. This version is a 4" x 4", five-knuckle, standard-weight hinge with a 626 / US26D Satin Chrome finish and CH-BB79 steel-base configuration. It is appropriate for properly designed access-control installations where the actual connected device's wiring and current needs match the hinge rating.

Important conductor distinction: The ETH6W configuration has six 26 AWG wires (6 x 26-gauge conductors). It is not the ETH6WH heavy-wire version, which has two 18 AWG and four 28 AWG conductors. Do not assume the ETH6W hinge will support high-current latch-retraction loads merely because it has six conductors. Check current, voltage drop, operating cycle and wire assignment before selecting an electrified hinge.

Correct size and wiring: The ETH6W4040 is a 4" high x 4" wide standard-weight full-mortise hinge, smaller than the taller ETH6W4540 (4-1/2" x 4") and larger ETH6W4545 (4-1/2" x 4-1/2") models. Match the frame/door hinge template before ordering. This ETH6W contains six 26 AWG conductors; the separate ETH6WH configuration instead has a heavier power pair, so the two families are not electrically interchangeable.

Square-corner selection: The standard ETH6W4040-652-5SW is a 4" x 4" square-corner five-knuckle, standard-weight full-mortise energy-transfer hinge. This is not the ETH6W4040 RC58 5/8" radius-corner configuration, which requires a different hinge preparation. Verify square-corner door/frame hinge mortises and the current Command Access screw-hole template before ordering. The ETH6W harness contains six 26 AWG wires, not the heavy-wire 18/28 AWG conductor arrangement of ETH6WH.

Key Features and Benefits

• Concealed six-wire energy transfer: Six factory-installed 26 AWG conductors provide a protected path for compatible low-voltage power, monitoring and control circuits.
• 4" x 4" commercial size: Designed for full-mortise hinge openings prepared for a 4-inch-tall, 4-inch-wide butt hinge. Verify screw-hole pattern and manufacturer template.
• 5-knuckle standard-weight construction: The supplier suffix 5SW identifies the standard-weight, five-knuckle hinge configuration. Confirm the manufacturer's door and frame preparation.
• 626 / US26D Satin Chrome finish: A satin chromium-plated appearance on a steel-base hinge, with distributor finish code 652 / US26D. Coordinate the finish with surrounding commercial door hardware.
• CH-BB79 configuration: Listed manufacturer chassis/reference for this specific hinge. Check the part's fit with the specified opening rather than substituting a differently prepared hinge.
• Low-current circuit rating: Published ETH6W family information lists 1.0 amp continuous at 24VDC per specified wire pair; verify all conductor/current limits in the latest manufacturer cut sheet and the connected hardware instructions.
• Protected wire access: Command Access literature describes a non-conductive wire access cap and a center-located wire access opening to help protect wires during installation.
• Four-foot lead option: Manufacturer literature states that a four-foot lead is available at no additional charge. Confirm lead configuration and termination style on the actual supplied assembly.
• Commercial listed-hinge family: The manufacturer's energy-transfer hinge family includes UL-F listed configurations. Verify the specific hinge's listing and any fire-door hardware schedule.
• Manufacturer warranty information: Command Access advertises a three-year warranty for its energy transfer hinges, subject to its current terms and any applicable exclusions.
• Professional appearance: Eliminates external wiring loops at the hinge edge when installed within an approved concealed frame/door raceway system.

Product Specifications

Typical Commercial Applications

• Compatible electrified mortise locks and cylindrical locks mounted in the door
• Electric exit trims and approved low-current electrified exit-device accessories
• Door-mounted proximity readers, credential readers, sensors and indicator lights
• Low-voltage door-position or latch-monitoring circuits, subject to wire allocation
• Controlled-access commercial entrances where concealed frame-to-door wiring is preferred
• Suitable new construction or retrofit openings with matching 4" x 4" hinge preparations

Application note: Some powered locks, latch-retraction motors and solenoids require heavier conductors, additional current capacity or specialized power-control electronics. Where the application requires an 18-gauge power pair, evaluate a manufacturer-approved ETH6WH model or other suitable energy-transfer solution. Never substitute this ETH6W 26-gauge configuration for an 18-gauge power-transfer specification without engineering approval.

Selection and Installation Guidance

1. Check the exact hinge size: Verify a 4" high x 4" wide opening. This is not the taller 4-1/2" x 4" (4540) or larger 4-1/2" x 4-1/2" (4545) version.
2. Match the hinge and finish: Confirm CH-BB79 steel base, 626 Satin Chrome, and the supplier 652 / US26D finish designation.
3. Confirm the wire bundle: This is six 26-gauge wires. Calculate continuous/inrush loads, number of conductors required, distance to the power supply, voltage drop and any connector limitations.
4. Prepare approved wire paths: Use the current Command Access hinge template for the jamb-side and door-leaf raceway and follow door and hardware manufacturer's fire-door requirements, if applicable.
5. Avoid pinched or abraded wires: Protect the wire harness while installing the leaves and ensure correct clearances, insulation and strain relief.
6. Test the assembly: Verify electrical continuity, connected hardware operation, full door swing, latch function, and any required exit-device or fire-rated assembly conditions.

What's Included

One Command Access ETH6W4040 626 CH-BB79 4" x 4" electrified transfer hinge in 626 / US26D Satin Chrome with six 26 AWG conductors. Confirm actual lead length, mounting fasteners, connector options and package details before ordering.

Not Included

Electric locks, strikes, exit devices, access-control readers, controllers, separate power supplies, door or frame, specialized latch-retraction motors and unrelated wiring accessories. This listing is for the concealed electrified hinge only.

The Command Access Technologies ETH6W4040 625 CH-BB79 Electrified Energy Transfer Hinge conceals six low-voltage conductors inside a commercial full-mortise hinge so wiring can pass between a door frame and a moving door leaf without an exposed cord or wire loop. This version is a 4" x 4", five-knuckle, standard-weight hinge with a 625 / US26 Bright Chrome finish and CH-BB79 steel-base configuration. It is appropriate for properly designed access-control installations where the actual connected device's wiring and current needs match the hinge rating.

Important conductor distinction: The ETH6W configuration has six 26 AWG wires (6 x 26-gauge conductors). It is not the ETH6WH heavy-wire version, which has two 18 AWG and four 28 AWG conductors. Do not assume the ETH6W hinge will support high-current latch-retraction loads merely because it has six conductors. Check current, voltage drop, operating cycle and wire assignment before selecting an electrified hinge.

Correct size and wiring: The ETH6W4040 is a 4" high x 4" wide standard-weight full-mortise hinge, smaller than the taller ETH6W4540 (4-1/2" x 4") and larger ETH6W4545 (4-1/2" x 4-1/2") models. Match the frame/door hinge template before ordering. This ETH6W contains six 26 AWG conductors; the separate ETH6WH configuration instead has a heavier power pair, so the two families are not electrically interchangeable.

Square-corner selection: The standard ETH6W4040-651-5SW is a 4" x 4" square-corner five-knuckle, standard-weight full-mortise energy-transfer hinge. This is not the ETH6W4040 RC58 5/8" radius-corner configuration, which requires a different hinge preparation. Verify square-corner door/frame hinge mortises and the current Command Access screw-hole template before ordering. The ETH6W harness contains six 26 AWG wires, not the heavy-wire 18/28 AWG conductor arrangement of ETH6WH.

Finish identification: This is the 625 / US26 Bright Chrome (Polished Chrome) finish on the CH-BB79 steel-base hinge. The distributor identifies its plated-steel bright chromium finish as 651 / US26. Bright chrome has a polished, reflective appearance; it differs from 626 / US26D satin chrome. Verify the finish specified in the door-hardware schedule before ordering. This exact part is a 4" x 4" square-corner hinge, not the 5/8"-radius RC58 option.

Key Features and Benefits

• Concealed six-wire energy transfer: Six factory-installed 26 AWG conductors provide a protected path for compatible low-voltage power, monitoring and control circuits.
• 4" x 4" commercial size: Designed for full-mortise hinge openings prepared for a 4-inch-tall, 4-inch-wide butt hinge. Verify screw-hole pattern and manufacturer template.
• 5-knuckle standard-weight construction: The supplier suffix 5SW identifies the standard-weight, five-knuckle hinge configuration. Confirm the manufacturer's door and frame preparation.
• 625 / US26 Bright Chrome finish: A bright, polished chromium-plated finish on a steel-base hinge; distributor plating/finish code 651 / US26. Match this reflective finish to the commercial door hardware schedule.
• CH-BB79 configuration: Listed manufacturer chassis/reference for this specific hinge. Check the part's fit with the specified opening rather than substituting a differently prepared hinge.
• Low-current circuit rating: Published ETH6W family information lists 1.0 amp continuous at 24VDC per specified wire pair; verify all conductor/current limits in the latest manufacturer cut sheet and the connected hardware instructions.
• Protected wire access: Command Access literature describes a non-conductive wire access cap and a center-located wire access opening to help protect wires during installation.
• Four-foot lead option: Manufacturer literature states that a four-foot lead is available at no additional charge. Confirm lead configuration and termination style on the actual supplied assembly.
• Commercial listed-hinge family: The manufacturer's energy-transfer hinge family includes UL-F listed configurations. Verify the specific hinge's listing and any fire-door hardware schedule.
• Manufacturer warranty information: Command Access advertises a three-year warranty for its energy transfer hinges, subject to its current terms and any applicable exclusions.
• Professional appearance: Eliminates external wiring loops at the hinge edge when installed within an approved concealed frame/door raceway system.

Product Specifications

Typical Commercial Applications

• Compatible electrified mortise locks and cylindrical locks mounted in the door
• Electric exit trims and approved low-current electrified exit-device accessories
• Door-mounted proximity readers, credential readers, sensors and indicator lights
• Low-voltage door-position or latch-monitoring circuits, subject to wire allocation
• Controlled-access commercial entrances where concealed frame-to-door wiring is preferred
• Suitable new construction or retrofit openings with matching 4" x 4" hinge preparations

Application note: Some powered locks, latch-retraction motors and solenoids require heavier conductors, additional current capacity or specialized power-control electronics. Where the application requires an 18-gauge power pair, evaluate a manufacturer-approved ETH6WH model or other suitable energy-transfer solution. Never substitute this ETH6W 26-gauge configuration for an 18-gauge power-transfer specification without engineering approval.

Selection and Installation Guidance

1. Check the exact hinge size: Verify a 4" high x 4" wide opening. This is not the taller 4-1/2" x 4" (4540) or larger 4-1/2" x 4-1/2" (4545) version.
2. Match the hinge and finish: Confirm the CH-BB79 steel-base hinge, 625 / US26 Polished Chrome (Bright Chrome), and the supplier ordering finish 651 / US26. Avoid substituting satin chrome or stainless steel without verifying the hardware schedule.
3. Confirm the wire bundle: This is six 26-gauge wires. Calculate continuous/inrush loads, number of conductors required, distance to the power supply, voltage drop and any connector limitations.
4. Prepare approved wire paths: Use the current Command Access hinge template for the jamb-side and door-leaf raceway and follow door and hardware manufacturer's fire-door requirements, if applicable.
5. Avoid pinched or abraded wires: Protect the wire harness while installing the leaves and ensure correct clearances, insulation and strain relief.
6. Test the assembly: Verify electrical continuity, connected hardware operation, full door swing, latch function, and any required exit-device or fire-rated assembly conditions.

What's Included

One Command Access ETH6W4040 625 CH-BB79 4" x 4" electrified transfer hinge in 625 / US26 Bright Chrome with six 26 AWG conductors. Confirm actual lead length, mounting fasteners, connector options and package details before ordering.

Not Included

Electric locks, strikes, exit devices, access-control readers, controllers, separate power supplies, door or frame, specialized latch-retraction motors and unrelated wiring accessories. This listing is for the concealed electrified hinge only.

The Command Access Technologies ETH6W4040 613 CH-BB79 Electrified Energy Transfer Hinge conceals six low-voltage conductors inside a commercial full-mortise hinge so wiring can pass between a door frame and a moving door leaf without an exposed cord or wire loop. This version is a 4" x 4", five-knuckle, standard-weight hinge with a 613 / US10B Oil Rubbed Bronze finish and CH-BB79 steel-base configuration. It is appropriate for properly designed access-control installations where the actual connected device's wiring and current needs match the hinge rating.

Important conductor distinction: The ETH6W configuration has six 26 AWG wires (6 x 26-gauge conductors). It is not the ETH6WH heavy-wire version, which has two 18 AWG and four 28 AWG conductors. Do not assume the ETH6W hinge will support high-current latch-retraction loads merely because it has six conductors. Check current, voltage drop, operating cycle and wire assignment before selecting an electrified hinge.

Correct size and wiring: The ETH6W4040 is a 4" high x 4" wide standard-weight full-mortise hinge, smaller than the taller ETH6W4540 (4-1/2" x 4") and larger ETH6W4545 (4-1/2" x 4-1/2") models. Match the frame/door hinge template before ordering. This ETH6W contains six 26 AWG conductors; the separate ETH6WH configuration instead has a heavier power pair, so the two families are not electrically interchangeable.

Square-corner selection: The standard ETH6W4040-640-5SW is a 4" x 4" square-corner five-knuckle, standard-weight full-mortise energy-transfer hinge. This is not the ETH6W4040 RC58 5/8" radius-corner configuration, which requires a different hinge preparation. Verify square-corner door/frame hinge mortises and the current Command Access screw-hole template before ordering. The ETH6W harness contains six 26 AWG wires, not the heavy-wire 18/28 AWG conductor arrangement of ETH6WH.

Bronze finish verification: This specific ETH6W4040 613 CH-BB79 uses 613 / US10B Oil Rubbed Bronze, identified by the distributor as 640 / US10B — oxidized satin bronze over copper plated, oil rubbed. The oil-rubbed finish is dark bronze; this is not the 626 satin chrome or 625 polished chrome finish. The hinge is 4" x 4" square-corner, unlike the 5/8" radius-corner RC58 model. The concealed harness consists of six 26 AWG conductors, rather than the heavy power-pair wiring found on ETH6WH models.

Key Features and Benefits

• Concealed six-wire energy transfer: Six factory-installed 26 AWG conductors provide a protected path for compatible low-voltage power, monitoring and control circuits.
• 4" x 4" commercial size: Designed for full-mortise hinge openings prepared for a 4-inch-tall, 4-inch-wide butt hinge. Verify screw-hole pattern and manufacturer template.
• 5-knuckle standard-weight construction: The supplier suffix 5SW identifies the standard-weight, five-knuckle hinge configuration. Confirm the manufacturer's door and frame preparation.
• 613 / US10B Oil Rubbed Bronze finish: An oxidized satin bronze-over-copper plated, oil-rubbed finish on the steel-base hinge, with distributor code 640 / US10B. Match the dark bronze appearance to the approved door hardware schedule.
• CH-BB79 configuration: Listed manufacturer chassis/reference for this specific hinge. Check the part's fit with the specified opening rather than substituting a differently prepared hinge.
• Low-current circuit rating: Published ETH6W family information lists 1.0 amp continuous at 24VDC per specified wire pair; verify all conductor/current limits in the latest manufacturer cut sheet and the connected hardware instructions.
• Protected wire access: Command Access literature describes a non-conductive wire access cap and a center-located wire access opening to help protect wires during installation.
• Four-foot lead option: Manufacturer literature states that a four-foot lead is available at no additional charge. Confirm lead configuration and termination style on the actual supplied assembly.
• Commercial listed-hinge family: The manufacturer's energy-transfer hinge family includes UL-F listed configurations. Verify the specific hinge's listing and any fire-door hardware schedule.
• Manufacturer warranty information: Command Access advertises a three-year warranty for its energy transfer hinges, subject to its current terms and any applicable exclusions.
• Professional appearance: Eliminates external wiring loops at the hinge edge when installed within an approved concealed frame/door raceway system.

Product Specifications

Typical Commercial Applications

• Compatible electrified mortise locks and cylindrical locks mounted in the door
• Electric exit trims and approved low-current electrified exit-device accessories
• Door-mounted proximity readers, credential readers, sensors and indicator lights
• Low-voltage door-position or latch-monitoring circuits, subject to wire allocation
• Controlled-access commercial entrances where concealed frame-to-door wiring is preferred
• Suitable new construction or retrofit openings with matching 4" x 4" hinge preparations

Application note: Some powered locks, latch-retraction motors and solenoids require heavier conductors, additional current capacity or specialized power-control electronics. Where the application requires an 18-gauge power pair, evaluate a manufacturer-approved ETH6WH model or other suitable energy-transfer solution. Never substitute this ETH6W 26-gauge configuration for an 18-gauge power-transfer specification without engineering approval.

Selection and Installation Guidance

1. Check the exact hinge size: Verify a 4" high x 4" wide opening. This is not the taller 4-1/2" x 4" (4540) or larger 4-1/2" x 4-1/2" (4545) version.
2. Match the hinge and finish: Confirm the CH-BB79 steel-base hinge, architectural 613 / US10B Oil Rubbed Bronze, and supplier plating code 640 / US10B. Do not substitute satin chrome or another bronze finish without checking the approved hardware schedule.
3. Confirm the wire bundle: This is six 26-gauge wires. Calculate continuous/inrush loads, number of conductors required, distance to the power supply, voltage drop and any connector limitations.
4. Prepare approved wire paths: Use the current Command Access hinge template for the jamb-side and door-leaf raceway and follow door and hardware manufacturer's fire-door requirements, if applicable.
5. Avoid pinched or abraded wires: Protect the wire harness while installing the leaves and ensure correct clearances, insulation and strain relief.
6. Test the assembly: Verify electrical continuity, connected hardware operation, full door swing, latch function, and any required exit-device or fire-rated assembly conditions.

What's Included

One Command Access ETH6W4040 613 CH-BB79 4" x 4" electrified transfer hinge in 613 / US10B Oil Rubbed Bronze with six 26 AWG conductors. Confirm actual lead length, mounting fasteners, connector options and package details before ordering.

Not Included

Electric locks, strikes, exit devices, access-control readers, controllers, separate power supplies, door or frame, specialized latch-retraction motors and unrelated wiring accessories. This listing is for the concealed electrified hinge only.

The Command Access Technologies ETH6W4040 612 CH-BB79 Electrified Energy Transfer Hinge conceals six low-voltage conductors inside a commercial full-mortise hinge so wiring can pass between a door frame and a moving door leaf without an exposed cord or wire loop. This version is a 4" x 4", five-knuckle, standard-weight hinge with a 612 / US10 Satin Bronze finish and CH-BB79 steel-base configuration. It is appropriate for properly designed access-control installations where the actual connected device's wiring and current needs match the hinge rating.

Important conductor distinction: The ETH6W configuration has six 26 AWG wires (6 x 26-gauge conductors). It is not the ETH6WH heavy-wire version, which has two 18 AWG and four 28 AWG conductors. Do not assume the ETH6W hinge will support high-current latch-retraction loads merely because it has six conductors. Check current, voltage drop, operating cycle and wire assignment before selecting an electrified hinge.

Correct size and wiring: The ETH6W4040 is a 4" high x 4" wide standard-weight full-mortise hinge, smaller than the taller ETH6W4540 (4-1/2" x 4") and larger ETH6W4545 (4-1/2" x 4-1/2") models. Match the frame/door hinge template before ordering. This ETH6W contains six 26 AWG conductors; the separate ETH6WH configuration instead has a heavier power pair, so the two families are not electrically interchangeable.

Square-corner selection: The standard ETH6W4040-639-5SW is a 4" x 4" square-corner five-knuckle, standard-weight full-mortise energy-transfer hinge. This is not the ETH6W4040 RC58 5/8" radius-corner configuration, which requires a different hinge preparation. Verify square-corner door/frame hinge mortises and the current Command Access screw-hole template before ordering. The ETH6W harness contains six 26 AWG wires, not the heavy-wire 18/28 AWG conductor arrangement of ETH6WH.

Correct bronze finish: This ETH6W4040 612 CH-BB79 has architectural 612 / US10 Satin Bronze (natural satin bronze appearance). The matching distributor finish code is 639 / US10, a satin bronze-plated, clear-coated steel-base finish. It is not the much darker 613 / US10B Oil Rubbed Bronze model, nor a satin chrome hinge. Match the approved hardware schedule before ordering. This 4" x 4" standard-weight, five-knuckle unit is square corner, not the RC58 5/8" radius configuration. Its ETH6W wire harness contains six 26 AWG conductors.

Key Features and Benefits

• Concealed six-wire energy transfer: Six factory-installed 26 AWG conductors provide a protected path for compatible low-voltage power, monitoring and control circuits.
• 4" x 4" commercial size: Designed for full-mortise hinge openings prepared for a 4-inch-tall, 4-inch-wide butt hinge. Verify screw-hole pattern and manufacturer template.
• 5-knuckle standard-weight construction: The supplier suffix 5SW identifies the standard-weight, five-knuckle hinge configuration. Confirm the manufacturer's door and frame preparation.
• 612 / US10 Satin Bronze finish: Satin bronze-plated and clear-coated appearance on a steel-base hinge, supplied under finish code 639 / US10. Coordinate with surrounding commercial hardware.
• CH-BB79 configuration: Listed manufacturer chassis/reference for this specific hinge. Check the part's fit with the specified opening rather than substituting a differently prepared hinge.
• Low-current circuit rating: Published ETH6W family information lists 1.0 amp continuous at 24VDC per specified wire pair; verify all conductor/current limits in the latest manufacturer cut sheet and the connected hardware instructions.
• Protected wire access: Command Access literature describes a non-conductive wire access cap and a center-located wire access opening to help protect wires during installation.
• Four-foot lead option: Manufacturer literature states that a four-foot lead is available at no additional charge. Confirm lead configuration and termination style on the actual supplied assembly.
• Commercial listed-hinge family: The manufacturer's energy-transfer hinge family includes UL-F listed configurations. Verify the specific hinge's listing and any fire-door hardware schedule.
• Manufacturer warranty information: Command Access advertises a three-year warranty for its energy transfer hinges, subject to its current terms and any applicable exclusions.
• Professional appearance: Eliminates external wiring loops at the hinge edge when installed within an approved concealed frame/door raceway system.

Product Specifications

Typical Commercial Applications

• Compatible electrified mortise locks and cylindrical locks mounted in the door
• Electric exit trims and approved low-current electrified exit-device accessories
• Door-mounted proximity readers, credential readers, sensors and indicator lights
• Low-voltage door-position or latch-monitoring circuits, subject to wire allocation
• Controlled-access commercial entrances where concealed frame-to-door wiring is preferred
• Suitable new construction or retrofit openings with matching 4" x 4" hinge preparations

Application note: Some powered locks, latch-retraction motors and solenoids require heavier conductors, additional current capacity or specialized power-control electronics. Where the application requires an 18-gauge power pair, evaluate a manufacturer-approved ETH6WH model or other suitable energy-transfer solution. Never substitute this ETH6W 26-gauge configuration for an 18-gauge power-transfer specification without engineering approval.

Selection and Installation Guidance

1. Check the exact hinge size: Verify a 4" high x 4" wide opening. This is not the taller 4-1/2" x 4" (4540) or larger 4-1/2" x 4-1/2" (4545) version.
2. Match the hinge and finish: Confirm CH-BB79 steel base, 612 / US10 Satin Bronze and supplier code 639 / US10. Distinguish this clear-coated satin bronze finish from 613 / US10B oil-rubbed bronze and from chrome finishes.
3. Confirm the wire bundle: This is six 26-gauge wires. Calculate continuous/inrush loads, number of conductors required, distance to the power supply, voltage drop and any connector limitations.
4. Prepare approved wire paths: Use the current Command Access hinge template for the jamb-side and door-leaf raceway and follow door and hardware manufacturer's fire-door requirements, if applicable.
5. Avoid pinched or abraded wires: Protect the wire harness while installing the leaves and ensure correct clearances, insulation and strain relief.
6. Test the assembly: Verify electrical continuity, connected hardware operation, full door swing, latch function, and any required exit-device or fire-rated assembly conditions.

What's Included

One Command Access ETH6W4040 612 CH-BB79 4" x 4" electrified transfer hinge in 612 / US10 Satin Bronze with six 26 AWG conductors. Confirm actual lead length, mounting fasteners, connector options and package details before ordering.

Not Included

Electric locks, strikes, exit devices, access-control readers, controllers, separate power supplies, door or frame, specialized latch-retraction motors and unrelated wiring accessories. This listing is for the concealed electrified hinge only.