Command Access ETH4W4545626BB79 Electric Hinge 4-wire

Product Description

The COMMAND ACCESS ETH4W4545626BB79 is a 4-wire electric hinge designed for access control door applications requiring power transfer through the hinge point. Built on a steel base and finished in US26D Satin Chrome, this hinge measures 4.5 inches x 4.5 inches and integrates directly into a door frame assembly to carry low-voltage wiring to electrified hardware such as electric strikes, magnetic locks, or electrified exit devices. It replaces the need for external wire runs, keeping installations clean and code-compliant. Licensed electricians and access control technicians are the primary installers of this component.

This electric hinge is suited for commercial door openings where concealed power transfer is required. It is compatible with standard 4.5-inch x 4.5-inch hinge cutouts, making it a direct fit for doors already prepped to that specification. The 4-wire configuration supports applications where two conductors carry power and two carry signal or data, a common requirement in access control systems integrating readers, request-to-exit devices, or alarm contacts. The BB79 designation corresponds to the BB1279 hinge series base, confirming fitment in commercial hollow metal and wood door assemblies using that hinge pattern.

Key Features

• 4-wire configuration supports simultaneous power and signal transfer through the hinge pin
• 4.5-inch x 4.5-inch leaf size fits standard commercial door hinge preps
• Steel base construction provides durability in high-cycle door applications
• US26D Satin Chrome finish for compatibility with common commercial door hardware finishes
• BB1279 series base hinge for confirmed fitment in standard commercial assemblies
• Eliminates exposed wire runs at the door edge for a cleaner, more secure installation

Compatibility

Designed as a direct-fit electric hinge replacement for commercial door assemblies prepped for 4.5-inch x 4.5-inch hinges using the BB1279 base hinge series. Compatible with electrified access control hardware requiring a 4-wire low-voltage power transfer path.

Installation Notes

Installation should be performed by a licensed electrician or qualified access control technician familiar with low-voltage wiring practices and local codes. Disconnect all power to the door hardware circuit before removing the existing hinge or making any wire connections. Verify wire gauge and circuit load compatibility with the electrified hardware being powered before completing the installation. Follow NEC guidelines for low-voltage wiring where applicable.