SDC MSB550 Series 42" Mechanical Switch Bar with Electromagnetic Lock Release

SDC MSB550 Series 42"; Mechanical Switch Bar with Electromagnetic Lock Release

Professional Electromagnetic Lock Release Solution for Access-Controlled Doors

The SDC MSB550 Series 42"; Mechanical Switch Bar provides reliable electromagnetic lock release for commercial access control applications. Featuring heavy duty aluminum extrusion construction with metal caps and all-metal mounting assembly, this switch bar delivers quick and quiet operation with only 1/8"; total bar movement. UL 294 and UL 1034 certified for access control and burglary-resistant applications, the MSB550 meets building code requirements for uninhibited egress through access-controlled doors.

Professional Features & Benefits

• Minimal Bar Movement: Only 1/8"; total bar movement ensures quick and quiet electromagnetic lock release activation.
• Heavy-Duty Construction: Aluminum extrusion with metal end caps and all-metal mounting assembly prevents malfunction due to sagging or warped doors.
• Code Compliance Design: Meets building code requirements for egress through access-controlled doors without prior operational knowledge.
• High Traffic Durability: Engineered for high traffic commercial use with rigid construction that resists door and stile movement.
• Low-Profile Installation: Narrow, low-profile design minimizes visual impact while providing reliable operation.
• Complete Power Transfer: Includes PT-2U power transfer loop for simplified wiring and installation.
• Multiple Model Options: Available as MSB550 single switch, MSB550-2 dual switch, and MSB550-2W weatherized dual switch configurations.
• UL Certifications: UL 294 Access Control System Units and UL 1034 Burglary-Resistant Electric Locking Mechanisms certified with CSFM listing.

Technical Specifications

• Commercial/Residential: Commercial
• Department: Door Hardware
• Fire Rating: No
• PDF:SDC Full Catalog: https://zensupply.com/content/pdf/lcn/CondensedHardwareBrochure
• Product Category: Exit Devices and Trim
• Product Group: Exit Devices and Trim
• Product Model: MSB550, MSB550-2, MSB550-2W
• Product Projection: 1-7/8";
• Product Size: 42";
• Product Subgroup: Exit Devices - Rim
• Product Type: Exit Devices - Rim
• Series: MSB550 Series
• Stile Type: Narrow or Wide Stile
• Subcategory: Rim Exit Devices
• Wood Door Compatible: No

Professional Applications

• Commercial Office Building Access Control
• Educational Facility Security Systems
• Healthcare Institution Controlled Access
• Retail Store Loss Prevention
• Industrial Facility Entry Points
• Government Building Security
• Multi-Tenant Residential Access Control

Why Choose SDC Quality?

SDC MSB550 Series switch bars deliver professional-grade reliability with heavy duty aluminum construction and all-metal components designed for high traffic commercial applications. UL 294 and UL 1034 certifications ensure compliance with access control and security standards. The rigid construction and minimal 1/8"; bar movement provide dependable electromagnetic lock release where consistent egress performance is essential.