Honeywell Morley HM-FHSE-S2I-IV Fixed Temperature Thermal Detector with Isolator

Honeywell Morley HM-FHSE-S2I-IV Fixed Temperature Thermal Detector with Isolator

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The Honeywell Morley HM-FHSE-S2I-IV is an intelligent, analogue addressable fixed-temperature heat detector featuring an in-built short-circuit isolator and a classic ivory finish, designed for reliable fire detection with high false alarm immunity.

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Description

The Honeywell Morley HM-FHSE-S2I-IV is a low-profile, addressable fixed-temperature thermal sensor engineered for precise, linear temperature monitoring in modern commercial and industrial fire alarm networks. Utilizing low-mass thermistors alongside advanced microprocessor technology, the unit provides a fast response when ambient thermal thresholds cross into danger territory, supporting a standardized detection range from 58°C (Class A1S) up to 78°C (Class BS). This specific variant incorporates an essential built-in short-circuit isolator to preserve loop data integrity during electrical faults, operates across both Advanced and CLIP communication protocols, and features easy address addressing via traditional decadic rotary switches.

Features

  • Circuit Protection: Integrated short-circuit loop isolator ensures a single wiring fault won’t drop the entire loop.
  • Thermistor Tracking: Low-mass thermistors with signal smoothing filters provide fast response times with minimal false alarms.
  • Protocol Tuning: Fully compatible with Honeywell’s Advanced Protocol for software-configured heat thresholds.
  • Manual Addressing: Uses mechanical decadic rotary decade switches, eliminating the need for specialized electronic tools.
  • Status Diagnostics: Tri-color LED indicators blink green during polling, show amber for faults, and hold red for active alarms.
  • Backward Compatibility: Offers 100% electrical and mechanical compatibility with legacy platforms and standard B500 series bases.

Specifications

  • Brand : Honeywell Morley-IAS
  • Model Number: HM-FHSE-S2I-IV
  • Sensor Type: Fixed Temperature Thermal / Heat Detector
  • Response Range: 58°C (Class A1S) up to 78°C (Class BS)
  • Fault Protection: Built-in Short-Circuit Isolator with status control monitoring
  • Isolator Working Voltage: 15 V DC to 28.5 V DC
  • Isolator Consumption Current: 15 mA at 24 V DC
  • Maximum Continuous Current: 1 A (switch closed)
  • Protocol Support: Digital Advanced Protocol & CLIP protocol backward compatibility
  • Addressing Method: Decadic Rotary Decade Switches (0 to 159 address spectrum)
  • Visual Indicators: Integrated tri-color LEDs (Red, Green, Amber) providing 360° visibility
  • Physical Enclosure: Polycarbonate / ABS material blend in a classic Ivory finish
  • Operating Environment: -30°C to +70°C (10% to 93% Relative Humidity, non-condensing)
  • Dimensions & Weight: Ø 102 mm x 61 mm height (on standard B501AP base); 88 g without base
  • Certifications: LPCB Approved, Conforms to EN54-5 (Class A1S) and EN54-17 (Isolators)

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