SDC 482B4U 4.5 Square Push Plate
Overview
The SDC 482B4U is a 4.5-inch square push plate actuator rated for 28VDC operation. This SPDT momentary-contact device connects to enterprise access control systems and door strike hardware. Faceplate is 18-gauge stainless steel, suitable for indoor commercial and institutional environments. Mounts recessed, surface box, or bollard — typical for standard ADA-compliant door frames. Wireless-compatible design (when paired with appropriate control modules) reduces hardwired runs in retrofit installations.
Compatibility
The 482B4U integrates with enterprise access control systems that accept SPDT momentary contacts at 28VDC. Confirm your control panel or door strike controller supports this voltage and relay contact type before installation. The 4.5-inch square form factor matches standard double-gang electrical box rough-ins and aligns with typical ADA pushbutton specifications. Surface mount and recessed options allow flexibility in existing frame depths.
Installation Notes
Mount depth is 7/8 inch — verify door frame thickness or surface-mount box depth accommodates this without binding. SPDT contact rating: 1 Amp @ 28VDC resistive (narrow variant) or 2 Amp @ 28VDC resistive (4.5-inch and larger variants). For the 482B4U square plate, use the 2 Amp rating for strike circuit design. Wire to control panel relay input or strike solenoid control loop according to panel documentation. Stainless steel faceplate resists corrosion in moderate indoor humidity but is not rated for direct outdoor exposure; use covered entryways or canopies if mounted near doors subject to rain splash.
What's in the Box
- 1x SDC 482B4U push plate actuator (4.5-inch square, stainless steel faceplate)
- Mounting hardware appropriate to selected mounting style (recessed, surface, or bollard)
