Security Door Controls MSB550-2V-36 Exit Switch Bar, Non-Latching, PT-2U Power Transfer, 36in, Satin Aluminum

Security Door Controls MSB550-2V-36 Request to Exit Mechanical Switch Bar offers a reliable solution for emergency egress through access-controlled doors. Designed to comply with building codes, this non-latching switch bar allows for quick release of electromagnetic door locks with just a slight pressure, ensuring uninterrupted exit. The MSB550 series is constructed using heavy-duty aluminum extrusion and robust metal end caps, providing durability even in high-traffic environments. With a total bar movement of only 1/8", activation is both quick and quiet, making it ideal for discreet applications. The included PT-2U power transfer loop enhances functionality, while the second switch output allows for dual fail-safe operation, alarm shunt, or monitoring output. Installation is straightforward, as wires easily connect to the PC board after mounting, and the extruded cover provides easy access for servicing. This switch bar is compatible with doors widths of 36", 42", or 48" and can be cut to size as needed. Weighing just 6.5 lbs and featuring a narrow, low-profile design, the MSB550-2V-36 is perfect for aesthetically pleasing glass openings. Certified by the California State Fire Marshal and UL, this product combines safety, performance, and ease of use for both building professionals and knowledgeable homeowners.

Request to Exit Mechanical Switch Bar, Non-Latching, with PT-2U Power Transfer Loop, 2nd Switch for Dual Fail Safe, Alarm Shunt or Monitoring Output, 36in, 628/US28 Satin Aluminum

Building codes essentially state that egress through access controlled doors must not require prior knowledge of operational requirements. Meeting this criteria, SDC’s MSB550 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 MSB550 series bars are an economical alternative to sensor activated bars. The MSB550 series uses heavy duty aluminum extrusion and metal caps. The mounting assembly is all metal, and no plastic. The rigid construction prevents any malfunction due to sagging or warped doors or tweaked glass door stiles. With a maximum total bar movement of only 1/8", trigger activation to release the electromagnetic lock is quick and quiet.

Features:

• 1/8" total bar movement
• Quick and quiet operation
• Heavy duty aluminum extrusion
• Metal end caps
• High traffic use
• Narrow, low-profile
• One output
• Power transfer loop included (PT-2U)
• Easy installation and troubleshooting
• Additional switch for dual-failsafe redundant operation, alarm shunt or monitoring output. MSB550-2 and MSB550-2W models only.
• Weather resistant, water sealed switches for outdoor use. MSB550-2W models only.

Models:

• MSB550: Mechanical switch bar
• MSB550-2: Dual mechanical switch bar
• MSB550-2W: Dual mechanical switch bar, weatherized

Applications:

• Easy Installation & Troubleshooting: Wires plug into the PC board after the bar is mounted and the extruded cover slides on easily after the wire connections are made. For quick and easy servicing, the extruded cover slides off without removing the bar from the door exposing all internal parts.
• Narrow, Low Profile: The MSB550 series has a narrow profile with minimum projection from the door of only 17/8’’. The unobtrusive design is ideally suited for aesthetically superior glass openings.
• Second Switch Output: Two dry contacts for lock release, dual-failsafe redundant operation, request-to-exit, alarm shunt, alarm activation or CCTV activation.
• Water Sealed Switches: The MSB550-2W features a high-quality, watertight miniature snap action switch with a monoblock construction, ensuring high sealing capacity. Switch body meets IP67 (IEC 529) requirements. The MSB550W’s watertight switches make it a perfect companion for outdoor gate solutions.

MSB550 Specifications:

• Contact: SPDT 5 Amp @ 30 VDC resistive
• Operating Environment: Indoor
• Door Width: 36", 42", 48" (may be field cut)
• Door Stile: Narrow or wide
• Projection: 1-7/8"
• Weight: 6.5 lbs

MSB550-2 Specifications:

• Contact: SPDT (2) 5 Amp @ 30 VDC resistive
• Operating Environment: Indoor
• Door Width: 36", 42", 48" (may be field cut)
• Door Stile: Narrow or wide
• Projection: 1-7/8"
• Weight: 6.5 lbs

MSB550-2W Specifications:

• Contact: SPDT (2) 3 Amp @ 30 VDC resistive
• Operating Environment: Outdoor
• Operating Temperature: -40°F to 185°F
• Door Width: 36", 42", 48" (may be field cut)
• Door Stile: Narrow or wide
• Projection: 1-7/8"
• Weight: 6.5 lbs

Specify Length:

• 36: 36" Door opening
• 42: 42" Door opening
• 48: 48" Door opening

Finishes:

• V/628 - Dull Aluminum
• Y/335 - Dull Black
• S/629 - Bright Stainless
• U/630 - Dull Stainless

Resources

• Cut Sheet