SIEMENS SR-32 Supplementary Relay Module Instruction Manual
- June 9, 2024
- SIEMENS
Table of Contents
SR-32 Supplementary Relay Module
Instruction Manual
Description
The Model SR-32 Supplementary Common Relay Module from Siemens Industry, Inc.,
is designed to activate or deactivate, as desired, external devices such as
door releases, fan shutdowns, extinguishing system releases, audible alarms,
etc. Actuation of the unit may come from the system control panel, a ZU Zone
Module, an SM Switching Module, or any other module with appropriate output.
The module is fitted with six independent 24 VDC relays, each of which
provides a set of double pole, double throw (DPDT) contacts, rated 3 amp, 120
VAC or 28 VDC each. Power to operate the relays is provided from the 24 VDC
system power supply.
Actuation of each relay is from a high resistance transistor input circuit,
requiring a high going DC signal from between 12 and 24 volts above system
common. Each relay, when energized, draws 45mA.
All terminals are of the clamp type, accomodating two wires of up to 12 gauge.
Electrical Information
Relay De-energized: None
Relay Energized – 45mA each Max.
Installation
- Mount the module to the horizontal mounting brackets in the control enclosure.
- Install the Model JA-5 (5 in long) bus connector cable assembly between receptacle P2 of the module and receptacle P1 of the module or control panel immediately preceding it in the bus. Note: If the preceding module is on another row in the enclosure, a JA-24 (24 in long) bus connector cable assembly will be required.
- Modules are to be bus-connected from right to left. For two-row enclosures, the modules in the lower row are to be connected from left to right. Succeeding rows are to be alternately connected, right to left, left to right, etc.
- If a module is the last module in the system, install either a JS-30 (30 in long) or JS-64 (64 in long) bus connector assembly from the unused receptacle of the last module to terminal 41 of the CP-35 control panel. This completes the module supervision circuit.
- If a supplementary relay module, annunciator, or other output module is used, then the alarm outputs, terminals 1 (Zone 1) and 6 (Zone 2), should be connected to these units.
Wiring Test
Refer to the CP-35 Control Panel Instruction Manual, Installation and Wiring.
Typical Wiring
RELAY NOTATION:
1K = RELAY DESIGNATION
2 NUMBER OF POLES
1K1 = FIRST POLE OF RELAY 1K
CONTACTS SHOWN IN DE-ENERGIZED CONDITION RATED AT 3 AMPERES, 120 VAC/28 VDC
ACTUATION INPUT TO EACH RELAY IS 24 VDC, 5mA MAX
NOTES:
- Minimum wire size: 18 AWG
- Maximum wire size: 12 AWG
- Relays are designated Common.
Siemens Industry, Inc.
Building Technologies Division
Florham Park, NJ
Siemens Canada Limited
Building Technologies Division
2 Kenview Boulevard
Brampton, Ontario L6T 5E4 Canada
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