Siemens HFP-11 Intelligent Multi-Criteria Fire Detector
The Siemens HFP-11 (Part Number: 500-033290) is a high-performance, addressable multi-criteria fire detector designed for commercial and industrial fire alarm systems. By combining advanced photoelectric smoke sensing with a precision thermal sensor, the HFP-11 utilizes microprocessor-based FirePrint™ technology to accurately distinguish real fire threats from common deceptive phenomena (such as cooking vapors or cigarette smoke). Designed for seamless integration, it features polarity-insensitive SureWire™ technology and plugs directly into standard Siemens DB-11 series mounting bases.
| Specifications | |
| Product Make | SIEMENS |
| Model / Part Number | HFP-11 / 500-033290 |
| Detector Type | Addressable Multi-Criteria (Photoelectric / Thermal) |
| Thermal Sensor Rating | 135°F (57°C) |
| Operating Voltage | 16 to 27 VDC (Peak-to-Peak) |
| Operating Current | 750 µA (Supervisory / Standby) |
| Alarm Current | 1.5 mA |
| Wiring Requirements | 2-wire, polarity insensitive (SureWire™) |
| Operating Temperature | 32°F to 100°F (0°C to 38°C) |
| Humidity Range | 0 to 93% RH (Non-condensing) |
| Condition | GOOD |
| Warranty | 1 YEAR |
| Country of Origin | Germany |
| Protection Degree | IP30 |
| Diameter | 114 mm |
| Height | 51 mm |
| Weight | 180g |





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