Honeywell Bi-Metallic Thermostat, Closes at 100 °C, +150 °C Max Snap Action (Open or Close On Rise), Automatic Reset,
- RS Stock No.:
- 331-578
- Mfr. Part No.:
- 2455R--00820711
- Brand:
- Honeywell
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£29.93
(exc. VAT)
£35.92
(inc. VAT)
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In Stock
- Plus 101 unit(s) shipping from 18 May 2026
- Plus 1,000 unit(s) shipping from 03 July 2026
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Units | Per unit |
|---|---|
| 1 - 4 | £29.93 |
| 5 - 9 | £29.09 |
| 10 + | £27.47 |
*price indicative
- RS Stock No.:
- 331-578
- Mfr. Part No.:
- 2455R--00820711
- Brand:
- Honeywell
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Honeywell | |
| Minimum Operating Temperature | +52°C | |
| Product Type | Thermostat | |
| Maximum Operating Temperature | +150°C | |
| Closing Temperature | 100°C | |
| Thermostat Type | Bi-Metallic | |
| Contact Configuration | SPST | |
| Contact AC Voltage | 250V | |
| Terminal Type | Quick Connect | |
| Contact Current | 15A | |
| Hazardous Area Certification | NO | |
| Standards/Approvals | CSA, NASA certified, MIL-STD-202, Mil-PRF-24236, VDE, UL | |
| Series | 2455R | |
| Mount Type | Terminal, Bracket | |
| Reset Type | Automatic | |
| Switch Function | Snap Action (Open or Close On Rise) | |
| Select all | ||
|---|---|---|
Brand Honeywell | ||
Minimum Operating Temperature +52°C | ||
Product Type Thermostat | ||
Maximum Operating Temperature +150°C | ||
Closing Temperature 100°C | ||
Thermostat Type Bi-Metallic | ||
Contact Configuration SPST | ||
Contact AC Voltage 250V | ||
Terminal Type Quick Connect | ||
Contact Current 15A | ||
Hazardous Area Certification NO | ||
Standards/Approvals CSA, NASA certified, MIL-STD-202, Mil-PRF-24236, VDE, UL | ||
Series 2455R | ||
Mount Type Terminal, Bracket | ||
Reset Type Automatic | ||
Switch Function Snap Action (Open or Close On Rise) | ||
- COO (Country of Origin):
- CN
Honeywell 2455R Series Thermostat, 100°C Closing Temperature, 250V Contact AC Voltage - 2455R--00820711
This snap-action thermostat is a temperature-operated safety and control device designed for industrial and electronic systems. It monitors thermal conditions and initiates an instantaneous change of contact state as temperatures rise, providing straightforward over-temperature interruption within equipment assemblies. The product is suited to panel or component mounting where a Compact thermal cut-out with bracket or Terminal attachment is required.
Features and Benefits:
• Opens contact on temperature rise for immediate circuit interruption
• SPST contact arrangement for simple single-circuit switching
• Rated for 250VAC ensuring compatibility with common mains systems
• One-shot reset prevents unintended reclosure after activation
• Operates reliably up to 150°C for high-temperature environments
• Quick-connect terminals enable fast installation and replacement
• SPST contact arrangement for simple single-circuit switching
• Rated for 250VAC ensuring compatibility with common mains systems
• One-shot reset prevents unintended reclosure after activation
• Operates reliably up to 150°C for high-temperature environments
• Quick-connect terminals enable fast installation and replacement
Applications
• Suitable for thermal protection in industrial heaters and ovens
• Ideal for safety cut-outs in motor and pump assemblies
• Used for temperature control in electrical distribution panels
• Can be used for over-temperature protection in HVAC components
• Suitable for retrofit safety upgrades in factory automation systems
• Ideal for safety cut-outs in motor and pump assemblies
• Used for temperature control in electrical distribution panels
• Can be used for over-temperature protection in HVAC components
• Suitable for retrofit safety upgrades in factory automation systems
How is the device typically mounted in equipment?
It can be secured using a bracket or connected via its Terminal arrangement to integrate with existing electrical assemblies.
What type of Terminal Interface does it provide for wiring?
It features quick-connect terminals that allow fast, tool-free attachment of mating connectors.
Does the mechanism allow multiple reset cycles after trip?
The mechanism is one-shot reset, so it requires service or replacement after activation to restore circuit continuity.
What approvals support its use in regulated installations?
It holds recognised CSA and UL approvals appropriate for many industrial electrical applications.
Approvals
UL recognised component, CSA Certified
Related links
- Honeywell Bi-Metallic 15 A
- Honeywell Bi-Metallic 10 A
- Honeywell Bi-Metallic Thermostat 260 °C Max SPST Bracket Mount
- Honeywell Bi-Metallic Thermostat 150 °C Max SPST (NC) Automatic Reset Through Hole
- Honeywell Bi-Metallic Thermostat 150 °C Max NC SPST Bracket
- Honeywell Bi-Metallic Thermostat 150 °C Max NC SPST Bracket
- Honeywell Bi-Metallic Thermostat 260 °C Max NC SPST Bracket
- Honeywell Bi-Metallic Thermostatic Switch 150 °C Max Open On Rise Automatic Reset, 1
