Siemens FDBZ492-HR Duct Smoke Detector Housing with OP921 Smoke Detector Head

The Siemens FDBZ492-HR is a duct smoke detector housing designed to accommodate the OP921 smoke detector head for detecting smoke in HVAC ductwork.

Key Specifications

• Compatibility: Siemens OP921 Smoke Detector Head
• Material: Metal
• Mounting: Duct Mount
• Power Supply: 24 VDC
• Operating Temperature: 0°C to 49°C
• Alarm Contact Ratings: 2 A @ 30 VDC