MSS-3XXS Multi-Switch Surface Mount Contact

MSS Multi-Switch Series | <strong>UL SECURITY LISTED</strong>

   Multiple (2 or 3) individual contact outputs

   Available in closed & open loop configurations

   Cost competitive

The MSS-300 SERIES is resistant to:




Model MSS-3XXS  |  Surface Mount Contact

MAGNASPHERE introduces the MSS-300 Series, Recessed and Surface-Mount Contacts that offer two or three separate contact outputs – Ideal for installations where a single contact is desired for use with multiple independent systems (e.g. IDS and ACS) and Home Automation applications


  • Made with MAGNASPHERE Switch Technology
  • Won’t break
  • Resistant to contact welding
  • Resistant to outside defeat
  • Multiple (2 or 3) individual contact outputs
  • Available in closed and open loop configurations
  • Available in 1″ diameter recessed, and surface mount, armored cable version
  • Cost competitive
  • UL and ULC listed

Size:  2″ L x 1/2″W x 1″H(51 mm 12.7 mm x 25.4 mm)
Max Gap:   0.3″ [7 mm]
Armored Cable 24″ [61 mm]
Housing: Aluminum
Electrical Specifications: Max Current:    0.25A Resistive
Max Voltage:   30 VDC
Max Power:    .25 W Resistive
Connection: Intended for connection to UL Listed compatible control panels for U.S. applications and a ULC Listed compatible control panel for Canadian applications

Nomenclature: MSS-300C Loops
Wiring Schematics / Part No.

Wiring schematics for the following part numbers are available on the Downloads page in this section:
  • MSS–301S
  • MSS–302S
  • MSS–303S
  • MSS–310S
  • MSS–311S
  • MSS–312S
  • MSS–320S
  • MSS–321S
  • MSS–330S


MSS-3XXS Multi-Switch Surface Mount Contact  2″ x 1″ x 1/2″

MSS-300S dimensions


MAGNASPHERE products are covered by U.S. and International Patents. Click to review each patent at the USPTO Patent Full-Text and Image Database.

US Patents