Installation Instructions
Model MPS-6
Power Supply Module
P/N 315-090334-8
OPERATION
The Model MPS-6 from Siemens Industry, Inc. is a
fully supervised power supply that provides the MXL
System with primary 24 VDC power. It is rated at 6.5
amps and is unfiltered and unregulated. The MPS-6
supplies the MXL Control Panel or PSR-1 and its
expansion modules with the power required for
normal operation. The module incorporates a 2 amp
resettable circuitbreaker on the primary input and
includes a built-in AC line filter for surge and noise
suppression. The MPS-6 mounts in an MXL enclo-
sure backbox.
INSTALLATION
Always remove power before installation.
The installation kit for the MPS-6 includes the
following:
Four #10 nuts
Two #10 lockwashers
Two #10 flat washers
Two ¼" nuts
One 14 gauge green ground strap
The MPS-6 is designed to operate from a 120 VAC,
60 Hz power source. Use a separate or dedicated
circuitbreaker. Wire in accordance with local codes
and Article 760 of the NEC, NFPA 70, latest edition.
Run the earth ground from a suitable source to the
MPS-6. Check local requirements. Conduit is not
an acceptable conductor.
1. Make sure that the dedicated circuitbreaker
for the MPS-6 is turned off at the mains.
2. Place the mounting bracket for the MPS-6 over
the two studs provided in the enclosure. (Refer to
Figure 1.)
3. Secure the MPS-6 to the enclosure by slipping the
flat washers, then the lockwashers, and finally the
nuts over the two studs. Tighten them securely.
4. Connect the AC mains to the MPS-6:
Terminal
Black (hot) 1
White (neutral) 2
Green (earth ground) 3
5. Install the 14 gauge green ground strap spade lug
side to Terminal 3 (green, earth ground) of the
MPS-6. Secure the ring lug side of the ground
strap to the nearest available stud in the enclo-
sure. The stud size may vary depending on the
actual system modules and enclosure used.
Because the stud may be either a #10 thread or
¼" thread, nuts for both have been provided. The
ground strap provided is long enough for all
applications and the ring lug is good for both #10
and ¼" studs. If possible, install the ring lug under
one of the lock-washers and nuts which secure
the MPS-6 itself.
6. When used with a PSR-1:
Connect the 3-wire cable coming from the MPS-6
to the PSR at P12.
When used with an MMB-1/-2/-3 or SMB-1/2:
Connect the 3-wire cable coming from the MPS-6
to the MMB-1/-2/-3 or the SMB-1/2 at P1.
Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
Siemens Building Technologies, Ltd.
Fire Safety & Security Products
2 Kenview Boulevard
Brampton, Ontario
L6T 5E4 Canada
