Lowell MSM2
Momentary Switch Module


The momentary switch module (MSM2) allows equipment that’s connected to a remote power control (RPC-series) or 4-step sequencer (SCS-4) to be switched from multiple locations. The MSM2 is placed between the RPC (or SCS-4) and multiple momentary switches. It converts the normally open momentary contact closures to latching, maintained closures. This allows multiple switches in a variety of locations to activate connected equipment. When the MSM2 is connected, a momentary closure on any remote switch causes the MSM2 to change the state from open to closed or from closed to open, turning the RPC (or SCS-4) on or off. The MSM2 features dual terminal strips to connect (2) SPST momentary-style switches. Additional switches can be added in parallel (6 total for use with RPC-series or 12 total for use with the SCS-4). LED indicators display system status (on or off). The MSM2 does not require an external power source as it draws power from the host unit (RPC-series or SCS-4).


  • Compact unit (5"L x 3.279"W x 1.687"H)
  • Steel chassis with black powder epoxy finish includes mounting holes and connection diagram.
  • Mount to a blank rack panel or rack shelf that’s pre-punched for electronic devices (Lowell Model No’s. USE-210 or USE-310, order separately)
  • Made in the USA


  • Power Requirements:  24VDC, 30mA
  • Remote Switch Maximum:  6 with RPCs (100mA max) or 12 with SCS-4 (200mA max)


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