Siemens XMS-S Single Action Pull Station

The Siemens XMS-S is an addressable single-action manual pull station with a built-in loop isolator for Class X (Style 7) survivability. It features a high-impact polycarbonate housing, a tri-color status LED for normal, alarm, and trouble, and Siemens’ T-45 key for quick, secure reset. The device can be configured for isolation mode or polarity-insensitive wiring in non-isolation mode, and it occupies a single address on the loop. Also known as P/N S54321-F7-A1. Model Variants: XMS-S – Addressable single-action with isolation XMS-D – Addressable dual-action with isolation XMS-501 – Conventional dual-action manual pull station Key Specifications: Type: Addressable single-action manual pull station with built-in isolation Status Indication: Tri-color LED for normal, alarm, and trouble Wiring Modes: Isolation mode or polarity-insensitive non-isolation mode Reset: T-45 key reset Operating Voltage: 13 to 32 VDC Housing: High-impact polycarbonate Mounting: Standard single-gang electrical box, 2.5 in deep System Compatibility: Desigo Fire Safety and Cerberus PRO FACPs Accessories & Mounting Hardware: SMBOX-XMP – Surface mounting backbox APLT-XMP – Adapter plate to legacy surface backboxes 4DGBOX-XMP – Adapter plate to 4-inch and double-gang boxes