Cartridge Temperature Switches

	Pipe Size Pipe Size

3/8

1/2

	Switch Starting Position Switch Starting Position

1 Off (Normally Open)

1 On (Normally Closed)

	Voltage Voltage

120V AC

240V AC

	Probe Type Probe Type

Threaded

Unthreaded

	Current Current

	Probe Diameter Probe Diameter

1/2"

5/8"

	Specifications Met Specifications Met

CSA

	Probe Length Probe Length

2 1/2"

3 5/8"

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

Forward

How can we improve?

12 Products

Compact Threaded Temperature Switches

NPT Male Threaded

NPT Male × NPT Male Threaded

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
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
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