Siemens (Pyro) SR-32-RC
Siemens (Pyro) SR-32-RC
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The Siemens (Pyrotronics) SR-32-RC is a supplementary relay module used to activate or deactivate external building equipment — such as door releases, fan shutdown, extinguishing system release, or auxiliary audible devices — from a Siemens fire alarm control panel. It provides multiple independently controlled relay outputs, letting a single module handle several auxiliary control functions from one panel connection.
Key Features
- Six independent 24 VDC relays for auxiliary equipment control
- Each relay provides double-pole, double-throw (DPDT) dry contacts
- Actuated by a high-resistance transistor input circuit from the fire alarm system
Technical Specifications
- Contact rating: 3A at 120 VAC or 28 VDC per relay
- Relay coil draw: 45mA when energized
- Clamp-type terminals accept wire up to 12 gauge
- -RC designation indicates a factory-reconditioned unit
Certifications
- UL Listed for auxiliary relay control in fire alarm systems

