Model: MSM2
Momentary Switch Module
©2010 Lowell Manufacturing Company, 100 Integram Dr., Pacific MO 63069. Phone
–
800.325.9660 Fax—
636.257.6606. Lowell makes every effort to provide accurate information while reserving the right to change
specifications and/or improve manufacturing methods without notification. (lowellmfg.com)
Spec. No.
1141
(rev. 04.22.11)
pg. 1 of 2
Model No.
Description
Power Requirements (drawn from host)
Remote Switch Maximum
MSM2
Momentary Switch Module
24VDC, 30mA
6 with RPCs (100mA max) or 12 with SCS-4 (200mA max)
Description:
The momentary switch module (MSM2) allows equipment that’s con-
nected 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 lo-
cations to activate connected equipment. When the MSM2 is con-
nected, a momentary closure on any remote switch causes the MSM2
to change the state from open to closed or from closed to open, turn-
ing 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 sta-
tus (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).
Features:
• 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
A & E Specifications:
The device for converting normally open momentary contact closures
to latching maintained closures shall be Lowell momentary switch mod-
ule Model No. MSM2. It shall allow for multiple momentary style
switches to be used to activate equipment that is connected to Lowell
RPC-series remote power controls or Lowell SCS-4 sequence con-
troller. The MSM2 device shall include 1 terminal strip for connection
to remote power control Model No.______(RPC-series) or sequence
controller Model No. SCS4. It shall also include 2 terminal strips to
connect up to 4 momentary switches Model No.______(RPSB-series)
when connected to a remote control (RPC-series) host; or up to 12
momentary switches Model No._______(RPSB-series) when con-
nected to sequence controller Model No. SCS-4 as a host.
Compatible Remote Switches:
(order separately)
Momentary closure switch — three conductors:
RPSB-MP ........Black Decora wall plate switch (rocker switch, 1 LED)
RPSW-MP .......White Decora wall plate switch (rocker switch, 1 LED)
RPSB-MKP......Black Decora wall plate switch (key switch, 1 LED)
RPSW-MKP.....White Decora wall plate switch (key switch, 1 LED)
RPSB-MR........IU rackmount switch (rocker switch, 1 LED)
RPSB-MKR......IU rackmount switch (key switch, 1 LED)
Momentary closure switch — four conductors:
RPSB2-MP ......Black Decora wall plate switch (rocker switch, 2 LEDs)
RPSW2-MP .....White Decora wall plate switch (rocker switch, 2 LEDs)
RPSB2-MKP....Black Decora wall plate switch (key switch, 2 LEDs)
RPSW2-MKP...White Decora wall plate switch (key switch, 2 LEDs)
RPSB2-MR......IU rackmount switch (rocker switch, 2 LEDs)
RPSB2-MKR....IU rackmount switch (key switch, 2 LEDs)
Compatible Host Devices:
(order separately)
RPC-1....................................Remote power control (15A, 1 duplex, cord)
RPC-1-20A-CD......................Remote power control (20A, 1 duplex, cord)
RPC-1-20A-MC .....................Remote power control (20A, 1 duplex, hardwired)
RPC-1-30A-MC .....................Remote power control (30A, 1 twistlock, hardwired)
RPC-1-IG-MC........................Remote power control (20A, 1 IG duplex, hardwired)
RPC-1-TVSS-CD...................Remote power control (20A, 1 duplex, cord)
RPC-1-TVSS-MC ..................Remote power control (20A, 1 duplex, hardwired)
RPC-4-CD .............................2U rackmount panel with remote control (15A, 4 duplex, cord)
RPC-4-MC.............................2U rackmount panel with remote control (15A, 4 duplex, hardwired)
ACS-1510-RPC .....................Power strip with remote control (15A, 5 duplex, cord)
ACS-2010-RPC-HW..............Power strip with remote control (20A, 5 duplex, hardwired)
ACS-2010-IG-RPC-HW.........Power strip with remote control (20A, 5 IG duplex, hardwired)
ACS-2018-5C-RPC-HW ........Power strip with remote control (20A, 9 duplex, 5 circuit, hardwired)
ACS-2018-IG-5C-RPC-HW ...Power strip with remote control (20A, 9 IG duplex, 5 circuit, hardwired)
SCS-4....................................Sequence controller
1.55"
5.00"
4.50"
3.10"
(3) plug-in Phoenix-
style connectors
provided with unit
Terminals will accept
up to 14-ga. wire,
stranded or solid
(2) 7/32"
mounting
holes
