Switch Starting Position Switch Starting Position |
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Probe Type Probe Type |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Compact Threaded Temperature Switches


Since these switches don’t have a housing above the probe, they are often used in tight spaces and low-clearance areas. The threaded probe installs directly into tanks, pipelines, and other process components to turn heating equipment on or off at a specified temperature. Use the adjustment screw to set the actuation point. All switches are SPST (single pole, single throw) and control one circuit.
Normally open switches turn the circuit from off to on.
Normally closed switches turn the circuit from on to off.
For technical drawings and 3-D models, click on a part number.
Probe | ||||||||||
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Pipe Size | Temp. Range, °F | Temp. Accuracy, °F | Voltage (Electrical Phase) | Current | Dia. | Lg. | Material | Insulation Material | Each | |
1 Off (Normally Open) | ||||||||||
NPT Male Threaded | ||||||||||
1/2 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 5 A @ 240 V AC, 10 A @ 120 V AC | 5/8" | 3" | Stainless Steel | Fiberglass | 0000000 | 0000000 |
3/8 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 3 A @ 240 V AC, 5 A @ 120 V AC | 1/2" | 2" | Stainless Steel | Fiberglass | 0000000 | 000000 |
NPT Male × NPT Male Threaded | ||||||||||
1/2 × 1/2 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 5 A @ 240 V AC, 10 A @ 120 V AC | 5/8" | 3" | Stainless Steel | Fiberglass | 0000000 | 000000 |
3/8 × 3/8 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 3 A @ 240 V AC, 5 A @ 120 V AC | 1/2" | 2" | Stainless Steel | Fiberglass | 0000000 | 000000 |
1 On (Normally Closed) | ||||||||||
NPT Male Threaded | ||||||||||
1/2 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 5 A @ 240 V AC, 10 A @ 120 V AC | 5/8" | 3" | Stainless Steel | Fiberglass | 0000000 | 000000 |
3/8 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 3 A @ 240 V AC, 5 A @ 120 V AC | 1/2" | 2" | Stainless Steel | Fiberglass | 0000000 | 000000 |
NPT Male × NPT Male Threaded | ||||||||||
1/2 × 1/2 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 5 A @ 240 V AC, 10 A @ 120 V AC | 5/8" | 3" | Stainless Steel | Fiberglass | 0000000 | 000000 |
3/8 × 3/8 | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 3 A @ 240 V AC, 5 A @ 120 V AC | 1/2" | 2" | Stainless Steel | Fiberglass | 0000000 | 000000 |
Insertion Temperature Switches

Install the probe directly into drilled and reamed holes to turn heating equipment on or off at a specified temperature. Use the adjustment screw to set the actuation point. All switches are SPST (single pole, single throw) and control one circuit.
Normally open switches turn the circuit from off to on.
Normally closed switches turn the circuit from on to off.
For technical drawings and 3-D models, click on a part number.
Probe | Material | ||||||||
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Lg. | Dia. | Temp. Range, °F | Temp. Accuracy, °F | Voltage (Electrical Phase) | Current | Insulation | Probe | Each | |
1 Off (Normally Open) | |||||||||
2 1/2" | 1/2" | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 3 A @ 240 V AC, 5 A @ 120 V AC | Fiberglass | Stainless Steel | 0000000 | 000000 |
3 5/8" | 5/8" | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 5 A @ 240 V AC, 10 A @ 120 V AC | Fiberglass | Stainless Steel | 0000000 | 00000 |
1 On (Normally Closed) | |||||||||
2 1/2" | 1/2" | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 3 A @ 240 V AC, 5 A @ 120 V AC | Fiberglass | Stainless Steel | 0000000 | 00000 |
3 5/8" | 5/8" | -100° to 600° | ±12° | 120V AC, 240V AC (Single) | 5 A @ 240 V AC, 10 A @ 120 V AC | Fiberglass | Stainless Steel | 0000000 | 00000 |