SDC MSB550-2S Request-to-Exit Switch Bar, Non-Latching, 2 SPDT Contacts, Polished Stainless Steel, 36" Doors

The SDC MSDB550-2S is a mechanical switch bar with two SPDT contacts. Building codes essentially state that egress through access controlled doors must not require prior knowledge of operational requirements. Meeting this criteria, the MSB550-2S is designed to release electromagnetic door locks for uninhibited egress. When slight pressure is applied a microswitch is actuated, immediately releasing the electromagnetic door lock. The MSB5500-2S is an economical alternative to sensor activated bars.

The MSB550-2S has a maximum movement of only .125" (3.2 mm). Trigger activation to release the electromagnetic lock is quick and quiet. The unit utilizes heavy-duty aluminum extrusion and rugged end caps. The mounting assembly is all metal. The rigid construction prevents any malfunction due to sagging or warped doors or tweaked-glass door stiles.

The MSB550-2S has a narrow profile with minimum projection from the door of only 1.875" (47 mm). The unobtrusive design is ideally suited for aesthetically superior glass openings. The unit features a bright stainless steel finish and is designed for a 36" door.


Also known as: MSB5502S

Technical Specifications: Optional: Two, SPDT, 5 Amp @ 30VDC Standard: SPDT, 5 Amp @ 30VDC Door Width: 36" (914 mm) Bars may be field cut Height: 2.375" (60.3 mm) Projection (Depth): 1.875 (47.6 mm)

For more information about the Security Door Controls MSB550-2S, please contact us.