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Honeywell 3100U00031451 Single Pole Thermostat

The Honeywell 3100 Series is a hermetically sealed thermostat designed for critical applications requiring precise temperature control. It utilizes a single-pole, single-throw switch activated by a snap-action bimetal disc, with factory-set temperature calibrations and 100% inspection. The hermetic seal and robust construction ensure reliability in demanding environments. Applications include computers, medical electronics, power supplies, and industrial controls.

Authorized Distributors
Source:Newark
Part No:3100U00031451
Stock:2
Inv Date:06-01-2026
Price: Unit price: $127.01
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Source:DigiKey
Part No:3100U 00031451
Stock:0
Inv Date:06-01-2026
Price: Unit price: $57.565
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Part No:3100U 00031451
Stock:0
Inv Date:06-02-2026
Price: N/A
Buy/RFQ:
Part No:3100U00031451
Stock:1
Inv Date:06-01-2026
Price: Unit price: $85.92
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Honeywell 3100U00031451 Single Pole Thermostat Specifications:

  • Functional Properties: Open on rise
  • Reset Type: Automatic
  • Amperage: 3 A resistive max.
  • Voltage: 120 Vac
  • Operating Temperature: -29 °C to 260 °C [-20 °F to 500 °F]
  • Environmental Exposure Range: -62 °C to 288 °C [-80 °F to 550 °F]
  • Open Temperature: 115.6 °C [240 °F]
  • Close Temperature: 101.7 °C [215 °F]
  • Open Tolerance: 2.8 °C [5 °F]
  • Close Tolerance: 2.8 °C [5 °F]
  • Dielectric Strength: MIL-STD-202, Method 301; 1250 Vac @ 60 Hz - Terminal to Case
  • Insulation Resistance: MIL-STD-202, Method 302; 50 MOhm
  • Contact Resistance: MIL-STD-202, Method 307; 0.050 Ohm max.
  • Hermetic Seal: MIL-STD-202, Method 112; Cond. 1x10-5
  • Moisture Resistance: MIL-STD-202, Method 106
  • Housing Material: Steel housing hermetically sealed with glass-to-metal seal at terminal junction
  • Contact Material: Silver
  • Agency Approvals and Standards: UL
  • Mounting: B209 fixed bracket
  • Series Name: 3100U

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Frequently Asked Questions

Where can I buy Honeywell 3100U00031451?

You can click on the BUY or RFQ button to purchase 3100U00031451 from an authorized Honeywell distributor.

How do I troubleshoot issues or seek technical support for part 3100U00031451?

You can download the 3100U00031451 datasheet or visit the Honeywell website for support.

Who is the manufacturer of 3100U00031451?

Honeywell

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