4-1/2" x 4.5" Ball Bearing Hinge, NRP, with ETW4 Through-Wire – Stainless Finish
4-1/2" x 4.5" Ball Bearing Hinge, NRP, with ETW4 Through-Wire – Stainless Finish
$284.20
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Overview:
This robust, full-mortise friction hinge is designed for demanding commercial and institutional applications. It features smooth ball-bearing operation, enhanced security with a Non-Removable Pin (NRP), and built-in power passthrough via a concealed 4-conductor ETW4 electrified hinge system.
Key Features & Benefits:
-
Seamless Power Transfer
The ETW4 through-wire allows low-voltage power (up to 48 VDC) to safely pass from door frame to door leaf—ideal for powering electric locks, strikes, latch retraction devices, or access control readers—without messy surface wiring. -
Durable and Smooth Operation
Dual ball bearings deliver dependable, low-friction operation even under heavy use—perfect for high-traffic environments. -
Added Security with NRP
Non-Removable Pin construction prevents tampering and unauthorized pin removal, supporting safer and secure door assemblies. -
Stainless Finish for Harsh Environments
Ideal for spaces with high humidity, frequent cleaning, or corrosive atmospheres, the stainless finish ensures lasting durability and corrosion resistance. -
Professional-Level Spec and Safety
This hinge meets ANSI/BHMA standards and is UL-listed for 3-hour fire-rated openings—trustworthy for demanding building codes and safety compliance.
Technical Specifications:
| Feature | Specification |
|---|---|
| Size | 4-1/2″ × 4-1/2″ (Full Mortise) |
| Bearing Type | Ball Bearing (5-knuckle configuration) |
| Pin Type | Non-Removable Pin (for enhanced security) |
| ETW4 Config | 4-wire electrical through-hinge wiring |
| Power Transfer Capacity | 48 VDC at 3.5 A continuous, 16 A pulse |
| Finish | Stainless Steel |
| Compliance | ANSI/BHMA rated, UL-listed fire rating |
Why It’s the Clear Choice for Facilities Managers:
-
Simplifies Electrified Hardware Installs
Eliminates the need for surface wiring, raceways, or jamb drilling—saves time and keeps installations clean and professional. -
Security-Grade Construction
Resistance to pin removal and long-term smooth operation means fewer maintenance headaches and higher peace of mind. -
Engineered for Tough Environments
Stainless hinge hardware stands up to moisture, frequent cleaning, and swing traffic found in commercial, healthcare, and industrial settings. -
Predictable Electrical Performance
Reliable low-voltage power delivery for electrified hardware helps prevent electrical service issues and supports compliance needs.
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