ector 4.5" x 4" NRP ETW4 Hinge

4-1/2" x 4" | Ball Bearing | Non-Removable Pin | ETW4 4-Wire Power Transfer | 1/4" Radius

Combine smooth commercial door operation, enhanced security, and concealed electrical power transfer with the Vector Hinge Co. 4-1/2" x 4" Ball Bearing NRP ETW4 Hinge.

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

The hinge also features 1/4" radius corners, ball-bearing construction, and a Non-Removable Pin (NRP) for added security on outswinging and controlled-access doors.

Choose from US10B Oil-Rubbed Bronze or US32D Satin Stainless Steel finish.

Key Features

• Vector Hinge Co.

• 4-1/2" x 4" hinge size

• Commercial ball-bearing hinge

• NRP – Non-Removable Pin

• ETW4 concealed through-wire

• 4-conductor electrical transfer

• 1/4" radius corners

• Transfers wiring from frame to electrified door hardware

• Helps eliminate exposed surface door loops

• Smooth ball-bearing operation

• Added security for outswinging doors

• Ideal for access-control applications

• Available finishes:

  • US10B – Oil-Rubbed Bronze

  • US32D – Satin Stainless Steel

ETW4 Concealed Power Transfer

The integrated ETW4 system provides four conductors through the hinge, creating a concealed wiring pathway from the stationary door frame to electrified hardware installed in the moving door.

Typical applications include:

• Electrified Locksets

• Electric Latch Retraction

• Electrified Exit Devices

• Request-to-Exit Hardware

• Door Monitoring

• Access-Control Hardware

• Other Compatible Low-Voltage Door Equipment

The concealed design helps provide a cleaner finished installation compared with an exposed armored door loop.

1/4" Radius Corners

This hinge features 1/4" radius corners for doors and frames prepared for rounded-corner hinges.

Always verify the existing hinge preparation before ordering, as square-corner, 1/4" radius, and other hinge preparations are not interchangeable without modification.

Non-Removable Pin – NRP

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

This is especially useful for:

• Exterior outswinging doors

• Secure entrances

• Access-controlled doors

• Institutional facilities

• Commercial service doors

• Restricted areas

Ball-Bearing Construction

Ball bearings help reduce friction between the hinge knuckles for:

• Smooth door movement

• Reduced hinge wear

• Quieter operation

• Improved performance on frequently used doors

• Longer service life in commercial applications

Available Finishes

US10B – Oil-Rubbed Bronze

Provides a dark architectural bronze appearance that coordinates with matching US10B commercial locks, exit-device trim, closers, and other door hardware.

US32D – Satin Stainless Steel

Provides a brushed satin stainless appearance with excellent durability for commercial and institutional openings.

Common Applications

• Electrified Commercial Doors

• Hollow Metal Doors

• Access-Controlled Openings

• Exterior Outswinging Doors

• Schools

• Hospitals

• Healthcare Facilities

• Government Buildings

• Office Buildings

• Warehouses

• Institutional Facilities

• High-Traffic Commercial Openings

Product Specifications

Brand: Vector Hinge Co.
Product Type: Electrified Ball Bearing Butt Hinge
Size: 4-1/2" x 4"
Corner Style: 1/4" Radius
Bearing Type: Ball Bearing
Security: Non-Removable Pin (NRP)
Electrical Transfer: ETW4
Conductors: 4
Finish Options: US10B / US32D
US10B Finish: Oil-Rubbed Bronze
US32D Finish: Satin Stainless Steel
Application: Commercial Electrified Doors

Important

Before ordering, verify:

• 4-1/2" x 4" hinge preparation

• 1/4" radius corners

• Required conductor count

• Voltage and current requirements of connected hardware

• Door and frame wire routing

• Door handing and swing

• Required finish

The ETW4 provides four conductors through the hinge. Confirm that the conductor count and electrical requirements are appropriate for all connected electrified hardware before installation.