Electrified Commercial Door Hinge | 4-Wire Concealed Power Transfer | US10B or US32D

Combine heavy-duty hinge performance, enhanced security, and concealed electrical power transfer with the Vector Hinge Co. 4.5" x 4" Ball Bearing NRP ETW4 Hinge.

Designed for commercial electrified door openings, this hinge features an integrated ETW4 four-conductor through-wire system, allowing electrical power to pass discreetly from the frame into the door without an exposed door loop.

The ball-bearing design provides smooth operation for frequently used commercial doors, while the Non-Removable Pin (NRP) adds protection against hinge-pin removal on out-swinging and security-sensitive openings.

Available in:

• US10B – Oil Rubbed Bronze

• US32D – Satin Stainless Steel

Key Features

• Vector Hinge Co. commercial electrified hinge

• 4.5" x 4" size

• 1/4" radius corners

• Heavy-duty ball-bearing construction

• NRP – Non-Removable Pin

• Integrated ETW4 concealed through-wire

• 4 electrical conductors

• Transfers power from frame to door

• Eliminates the need for an exposed door loop in compatible applications

• Designed for electrified commercial door hardware

• Suitable for high-traffic openings

• Available in US10B or US32D

• Ideal for replacement, retrofit, and new access-control installations

ETW4 Concealed Power Transfer

The ETW4 configuration incorporates four electrical conductors directly through the hinge.

This creates a concealed electrical pathway between the stationary frame and moving door.

Instead of running an exposed armored door loop across the opening, wiring can pass through the hinge and remain largely hidden when the door is installed.

Common Electrified Applications

The four-wire power transfer can be used with compatible door-mounted equipment such as:

• Electrified mortise locks

• Electrified cylindrical locks

• Electrified exit-device trim

• Motorized latch retraction

• Electric latch retraction hardware

• Request-to-exit devices

• Door-mounted access-control components

• Other compatible low-voltage electrified hardware

Always verify the voltage, amperage, conductor requirements, and wiring configuration of the connected device before installation.

Ball Bearing Construction

The ball-bearing hinge design reduces friction between hinge knuckles during door movement.

Benefits include:

• Smoother door operation

• Reduced hinge wear

• Improved performance in high-cycle openings

• Quieter operation

• Longer service life compared with basic plain-bearing hinges in demanding applications

NRP – Non-Removable Pin

The Non-Removable Pin provides an added security feature for doors where the hinge barrel is exposed from the unsecured side.

NRP is particularly useful on:

• Out-swinging exterior doors

• Secure entrances

• Service doors

• Access-controlled openings

• Utility and equipment rooms

• Other security-sensitive commercial doors

The NRP feature helps prevent removal of the hinge pin while the door is closed.

1/4" Radius Corners

This hinge features:

1/4" Radius Corners

The radius configuration is designed to match compatible commercial door and frame hinge preparations.

Always verify the existing hinge preparation when replacing installed hardware.

Available Finishes

US10B – Oil Rubbed Bronze

A dark architectural bronze finish suitable for:

• Dark bronze storefront hardware

• Traditional commercial entrances

• Bronze architectural hardware packages

• Interior and exterior applications where compatible

US32D – Satin Stainless Steel

A satin stainless steel finish offering a clean commercial appearance and excellent durability.

Ideal for:

• Exterior commercial doors

• Healthcare facilities

• Schools

• Government facilities

• High-traffic openings

• Stainless steel hardware packages

Product Specifications

Brand: Vector Hinge Co.
Product Type: Electrified Ball Bearing Butt Hinge
Size: 4.5" x 4"
Corner Style: 1/4" Radius
Bearing Type: Ball Bearing
Pin: Non-Removable Pin / NRP
Electrical Transfer: ETW4
Conductors: 4
Finish Options: US10B / US32D
US10B: Oil Rubbed Bronze
US32D: Satin Stainless Steel
Application: Commercial Electrified Door Hardware
Use: New Installation / Replacement / Retrofit

Why Use an Electrified Hinge?

Electrified hinges provide a clean method of transferring wiring into the door while maintaining the appearance of standard architectural hinges.

Benefits include:

• Concealed wiring

• No exposed armored loop

• Cleaner finished installation

• Reduced chance of exposed-wire damage

• Ideal for access-controlled openings

• Combines hinge function and power transfer into one component

Common Applications

Ideal for:

• Access-controlled doors

• Hollow metal doors

• Commercial wood doors

• Exterior commercial doors

• Office buildings

• Schools and universities

• Hospitals

• Healthcare facilities

• Government buildings

• Warehouses

• Secure facilities

• Institutional buildings

• High-traffic entrances

Important Wiring Note

ETW4 provides four conductors.

Before ordering, confirm that four conductors are sufficient for the intended electrified hardware.

Some applications may require:

• Additional conductors

• Different wire gauges

• Higher current capacity

• Separate monitoring circuits

• A different electrified hinge configuration

Always compare the electrical requirements of the connected hardware with the hinge specifications.

Important Size Note

This hinge measures:

4.5" High x 4" Wide

It is not the same size as a 4.5" x 4.5" hinge.

Before ordering, verify:

• Hinge height

• Hinge width

• Screw-hole pattern

• 1/4" radius corner preparation

• Door and frame preparation

• Required finish

Installation Considerations

Electrified hinges should be installed with proper attention to:

• Door and frame alignment

• Wiring routing

• Wire protection

• Voltage requirements

• Current draw

• Power supply capacity

• Access-control wiring

• Door handing

• Existing hinge preparation

Electrical connections should be made according to the requirements of the connected hardware and applicable electrical/access-control standards.

What's Included

(1) Vector Hinge Co. 4.5" x 4" Ball Bearing NRP ETW4 Hinge