Honeywell Technologies Bi-Metallic Thermostat, Closes at 90 °C, 186 °C Max Close On Rise, Open On Rise, Open, Automatic

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MYR220.84

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RS Stock No.:
229-5957
Mfr. Part No.:
2455RP-91000445
Manufacturer:
Honeywell
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Brand

Honeywell

Product Type

Thermostat

Minimum Operating Temperature

0°C

Maximum Operating Temperature

186°C

Thermostat Type

Bi-Metallic

Closing Temperature

90°C

Contact Configuration

SPST

Contact AC Voltage

250V ac

Terminal Type

Solder Tab

Contact Current

10A

Hazardous Area Certification

No

Standards/Approvals

MIL-STD-202, Mil-PRF-24236, UL, VDE, CSA, NASA certified

Reset Type

Automatic

Mount Type

Bracket, Terminal

Switch Function

Close On Rise, Open On Rise, Open

COO (Country of Origin):
CN

Honeywell Thermostat, 90°C Closing Temperature, 10A Contact Current - 2455RP-91000445


This thermostat is a commercial-grade temperature control device designed to monitor and switch electrical circuits in industrial and aerospace environments. It operates within a wide ambient range and is intended for bracket or Terminal mounting where automatic thermal interruption and restoration are required.

Features and Benefits:


• SPST contact configuration provides simple on/off switching functionality
• Resets automatically to restore circuit without manual intervention
• Rated for contact current up to 10A to handle moderate loads
• Contact AC voltage rating of 250V AC for common industrial supply systems
• Operates between 0°C and 186°C to cover low to very high ambient conditions
• Closing actuation occurs at 90°C for predictable trip behaviour

Applications


• Suitable for temperature protection in HVAC and industrial equipment
• Ideal for thermal management on control panels and enclosures
• Used with aerospace subsystems requiring rugged thermal switching
• Can be used for resettable over-temperature protection on heaters
• Suitable for retrofit temperature safety in electrical cabinets

What Terminal style does it use for electrical connections?


It employs solder tab terminals designed for secure soldered wiring and reliable electrical contact.

How is the device mounted in installations?


Mounting is via a bracket or direct Terminal mount to suit panel or chassis attachment requirements.

What switching behaviours are available for integration?


The unit provides close-on-rise and open-on-rise switching functions to accommodate different control strategies.

Are there any recognised approvals for demanding environments?


It holds multiple approvals including MIL-STD-202 and Mil-PRF-24236 as well as UL, VDE and CSA endorsements suitable for rigorous specification use.

What operating behaviour should be expected under repeated thermal cycling?


The automatic reset mechanism restores circuit continuity after temperature returns below the trip threshold, supporting repeated cycling without manual reset.

Note

The contacts are NOT silver plated and are unsuitable for use with low current dc applications

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