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Overview

2455A Series Heat Detection Thermostats.
The 2450A Series are designed for use in both photoelectric and ionization type smoke detectors. The gold alloy contacts open or close on a temperature rise of 47 °C to 107 °C [117 °F to 225 °F]. They are epoxy sealed for long life and are available with or without heat collectors.
2455RA 01060034 Automatic Reset - Honeywell


Technical Specifications

Functional Properties Close on rise
Reset Type Automatic
Operating Temperature 47 °C to 107 °C [117 °F to 225 °F]
Amperage 3.0 A
Voltage 120 Vac
Open Temperature 62.8 °C [145 °F] min.
Open Tolerance N/A
Close Temperature 79.4 °C [175 °F]
Close Tolerance 3.9 °C [7 °F]
Environmental Exposure Range 0 °C to 150 °C [32 °F to 302 °F]
Dielectric Strength MIL-STD-202, Method 301; 2000 Vac 60 Hz - Terminal to Case
Insulation Resistance MIL-STD-202, Method 302; Cond. B - 500 MOhm - 500 Vdc applied
Contact Resistance MIL-STD-202, Method 307; 0.050 Ohm
Housing Material Phenolic, epoxy seal cap and terminals
Contact Material WE -1 gold alloy cross point
Mounting Stepped aluminum cap
Agency Approvals and Standards UL
Comments Heat detection
Series Name 2455RA

Technical Specifications

Functional Properties Close on rise
Reset Type Automatic
Operating Temperature 47 °C to 107 °C [117 °F to 225 °F]
Amperage 3.0 A
Voltage 120 Vac
Open Temperature 62.8 °C [145 °F] min.
Open Tolerance N/A
Close Temperature 79.4 °C [175 °F]
Close Tolerance 3.9 °C [7 °F]
Environmental Exposure Range 0 °C to 150 °C [32 °F to 302 °F]
Dielectric Strength MIL-STD-202, Method 301; 2000 Vac 60 Hz - Terminal to Case
Insulation Resistance MIL-STD-202, Method 302; Cond. B - 500 MOhm - 500 Vdc applied
Contact Resistance MIL-STD-202, Method 307; 0.050 Ohm
Housing Material Phenolic, epoxy seal cap and terminals
Contact Material WE -1 gold alloy cross point
Mounting Stepped aluminum cap
Agency Approvals and Standards UL
Comments Heat detection
Series Name 2455RA

Documents

TITLE DOCUMENT TYPE LANGUAGE SIZE
Commercial Thermostats Datasheet English 756KB
Thermostats Line Guide Product Line Guide English 444KB
Thermal Sensors Product Range Guide English 12MB

Product Features

  • Gold alloy contacts
  • Epoxy-sealed cap
  • Epoxy-sealed terminals

Applications

  • Fire alarms
  • Smoke detectors
  • Security devices

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