Wall-Mount Temperature Switches
(Single Pole, Double Throw)
Switch with Enclosed Housing
(Double Pole, Single Throw)
Switch with Enclosed Housing
Turn heating equipment on or off at a specified temperature. Switches have a probe on a cable for remote temperature readings. Set the actuation point with the adjustment dial.
Switches that control one circuit are single pole, double throw (SPDT). They can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
Switches that control two circuits are double pole, single throw (DPST). They turn two circuits from on to off (normally closed).
Switches with an open housing are often added to existing enclosures or custom installations.
Switches with a pilot light indicate when the switch is on.
Use packing seals and fittings (sold separately) to seal the probe into threaded tanks and pipes.
Probe | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. Range, °F | Max. Switching Current @ Voltage (Electrical Phase) | Dia. | Lg. | Material | Ht. | Wd. | Dp. | Fasteners Included | Environmental Rating | Each | |
Switches | |||||||||||
SPDT—1 Circuit Controlled | |||||||||||
Enclosed Housing | |||||||||||
| -130° to 120° | 15 A @ 125 V AC (Single) 15 A @ 250 V AC (Single) 15 A @ 480 V AC (Single) | 3/8" | 4 1/2" | Copper | 3 1/4" | 3 1/2" | 2 13/16" | No | NEMA 1 | 00000000 | 0000000 |
| 0° to 150° | 15 A @ 125 V AC (Single) 15 A @ 250 V AC (Single) 15 A @ 480 V AC (Single) | 3/8" | 6 7/8" | Copper | 3 1/4" | 3 1/2" | 2 13/16" | No | NEMA 1 | 00000000 | 000000 |
| 50° to 300° | 15 A @ 125 V AC (Single) 15 A @ 250 V AC (Single) 15 A @ 480 V AC (Single) | 3/8" | 4 1/2" | Copper | 3 1/4" | 3 1/2" | 2 13/16" | No | NEMA 1 | 00000000 | 000000 |
| 150° to 650° | 15 A @ 125 V AC (Single) 15 A @ 250 V AC (Single) 15 A @ 480 V AC (Single) | 3/8" | 3 5/8" | Copper | 3 1/4" | 3 1/2" | 2 13/16" | No | NEMA 1 | 00000000 | 000000 |
DPST—2 Circuit Controlled | |||||||||||
Open Housing | |||||||||||
| 60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
| 200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 1/2" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
Enclosed Housing | |||||||||||
| 0° to 100° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/8" | 4 3/16" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| 60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| 200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 7/8" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| 300° to 700° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/16" | 13" | Nickel | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
Switches with Pilot Light | |||||||||||
DPST—2 Circuit Controlled | |||||||||||
Open Housing | |||||||||||
| 60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
| 200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 1/2" | Copper | 4 1/16" | 2 5/8" | 3 1/16" | No | __ | 0000000 | 000000 |
Enclosed Housing | |||||||||||
| 0° to 100° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/8" | 4 3/16" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| 60° to 250° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 1/4" | 5 5/32" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| 200° to 550° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 5/16" | 4 7/8" | Copper | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| 300° to 700° | 30 A @ 120 V AC (Single) 30 A @ 277 V AC (Three) | 3/16" | 13" | Nickel | 5 3/4" | 3" | 3 1/8" | No | NEMA 1 | 0000000 | 000000 |
| Packing Seals and Fittings | 0000000 | Each | 000000 |
Washdown Wall-Mount Temperature Switches
Stainless
Steel Probe
To protect these switches from splashing water, corrosive liquid, and dust, the housing meets NEMA 4X for washdown conditions. Switches turn heating equipment on or off at a specified temperature. All have a probe on a cable for remote temperature readings. Set actuation points with the adjustment dial.
SPDT (Single pole, double throw) switches can be set to turn circuits from off to on (normally open) or from on to off (normally closed). Switches with two actuation points have two SPDT (single pole, double throw) relays. Each relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
DPST (Double pole, single throw) switch turns two circuits from on to off (normally closed).
3PST (Triple pole, single throw) switches turn three circuits from on to off (normally closed).
Probe | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. Range | Temp. Accuracy | No. of Actuation Points | Electrical Phase | Max. Switching Current | Dia. | Lg. | Wire Connection Type | Ht. | Wd. | Dp. | Environmental Rating | Specifications Met | Each | |
SPDT—2 Circuit Controlled | ||||||||||||||
Unthreaded Stainless Steel Probe | ||||||||||||||
| 30° to 250° F | ±5° F | 2 | Single | 15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC | 3/8" | 2 5/8" | Screw Terminals | 6 11/16" | 5 5/32" | 5 1/2" | NEMA 4X | UL Listed; C-UL Listed; CE Marked; FM Approved | 0000000 | 0000000 |
| 100° to 400° F | ±8° F | 2 | Single | 15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC | 3/8" | 2 1/8" | Screw Terminals | 6 11/16" | 5 5/32" | 5 1/2" | NEMA 4X | UL Listed; C-UL Listed; CE Marked; FM Approved | 0000000 | 000000 |
DPST—2 Circuit Controlled | ||||||||||||||
Unthreaded PFA-Coated Copper Probe | ||||||||||||||
| 70° to 245° F/20° to 120° C | ±4° F/±2.5° C | 1 | Single | 25 A @ 120 V AC 25 A @ 240 V AC | 5/16" | 6 1/2" | Screw Terminals | 5 7/8" | 3 1/8" | 5" | NEMA 4X | __ | 00000000 | 000000 |
3PST—3 Circuit Controlled | ||||||||||||||
Unthreaded PFA-Coated Copper Probe | ||||||||||||||
| 70° to 245° F/20° to 120° C | ±4° F/±2.5° C | 1 | Single, Three | 50 A @ 240 V AC | 5/16" | 6 1/2" | Screw Terminals | 8 1/2" | 8 1/2" | 5" | NEMA 4X | __ | 00000000 | 00000000 |
| 70° to 245° F/20° to 120° C | ±4° F/±2.5° C | 1 | Single, Three | 50 A @ 480 V AC | 5/16" | 6 1/2" | Screw Terminals | 8 1/2" | 8 1/2" | 5" | NEMA 4X | __ | 00000000 | 00000000 |
| Packing Seals and Fittings | 0000000 | Each | 000000 |
Hazardous Location Wall-Mount Temperature Switches
Turn heating equipment on or off in environments with flammable gases, combustible dust, and ignitable fibers, such as chemical plants, refineries, and grain elevators. The switch housing is UL listed for use in Class I, Divisions 1 and 2, Groups B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 hazardous locations. It also meets NEMA 4X for use in washdown environments with splashing water, corrosive liquid, and dust. Switches have a probe on a cable for remote temperature readings. Set actuation points with the adjustment dial.
Switch with two actuation points has two SPDT (single pole, double throw) relays. Each relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
Probe | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. Range, °F | Temp. Accuracy, °F | No. of Actuation Points | Electrical Phase | Max. Switching Current | Dia. | Lg. | Ht. | Wd. | Dp. | Environmental Rating | Each | |
SPDT—2 Circuit Controlled | ||||||||||||
Unthreaded Stainless Steel Probe | ||||||||||||
| 30° to 250° | ±5° | 2 | Single | 15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC | 3/8" | 2 5/8" | 9 5/16" | 5 1/8" | 5 3/16" | NEC Class I Divisions 1, 2 Groups B, C, D NEC Class II Divisions 1, 2 Groups E, F, G NEC Class III Divisions 1, 2 NEC Zone 1 Groups IIB, IIA IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IP66 NEMA 4X NEMA 7 NEMA 9 | 0000000 | 000000000 |
| Packing Seals and Fittings | 0000000 | Each | 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 | Actuation Tolerance | Max. Switching Current | Electrical Phase | Insulation | Probe | Each | |
1 Off (Normally Open) | |||||||||
| 2 1/2" | 1/2" | -100° to 600° | ±2% | 5 A @ 120 V AC 3 A @ 240 V AC 1 A @ 120 V DC | Single | Fiberglass | Stainless Steel | 0000000 | 000000 |
| 3 5/8" | 5/8" | -100° to 600° | ±2% | 10 A @ 120 V AC 5 A @ 240 V AC 2 A @ 120 V DC | Single | Fiberglass | Stainless Steel | 0000000 | 00000 |
1 On (Normally Closed) | |||||||||
| 2 1/2" | 1/2" | -100° to 600° | ±2% | 5 A @ 120 V AC 3 A @ 240 V AC 1 A @ 120 V DC | Single | Fiberglass | Stainless Steel | 0000000 | 00000 |
| 3 5/8" | 5/8" | -100° to 600° | ±2% | 10 A @ 120 V AC 5 A @ 240 V AC 2 A @ 120 V DC | Single | Fiberglass | Stainless Steel | 0000000 | 00000 |