Hazardous Location Surface-Mount Temperature Switches
Safe for use in chemical plants, refineries, and other hazardous locations, these switches maintain your surface’s temperature by turning equipment on or off when they reach a set temperature. They’re FM approved for use where flammable gases may be present. These switches actuate when the temperature rises to the setpoint and reset when the temperature falls below the reset point. Since they're SPDT (single pole, double throw) switches, they control one circuit and can either be wired to turn one device from on to off (normally closed) or from off to on (normally open). Wire them normally closed to power a heater—when the temperature rises to the setpoint, the heater will turn off until the temperature falls below the reset point. Or wire them normally open to turn on alarms or other devices when the temperature rises above the setpoint. Their setpoint isn’t adjustable, so they’re easy to set up and there’s no risk of unintentional changes.
CSA-US and CSA certified, they also meet American and Canadian safety standards.
Mounting Holes | SPDT | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuation Point, °F | Actuation Tolerance | Approx. Difference Between Setpoint and Reset Point, °F | Max. Switching Current @ Voltage (Electrical Phase) | Ht. | Wd. | No. of | Dia. | Environmental Rating | Specifications Met | Each | |
Nonadjustable Rising Actuation Point | |||||||||||
| 47° | ±6° F | 10° | 15 A @ 240 V AC (Single) | 2 7/8" | 2" | 2 | 11/64" | NEC Class I Division 2 Groups A, B, C, D | CSA-US Certified, CSA Certified, FM Approved | 0000000 | 0000000 |
| 60° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 2 15/16" | 2" | 2 | 11/64" | NEC Class I Division 2 Groups A, B, C, D | CSA-US Certified, CSA Certified, FM Approved | 0000000 | 000000 |
| 75° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 2 15/16" | 2" | 2 | 11/64" | NEC Class I Division 2 Groups A, B, C, D | CSA-US Certified, CSA Certified, FM Approved | 0000000 | 000000 |
| 105° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 2 15/16" | 2" | 2 | 11/64" | NEC Class I Division 2 Groups A, B, C, D | CSA-US Certified, CSA Certified, FM Approved | 0000000 | 000000 |
| 200° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 2 15/16" | 2" | 2 | 11/64" | NEC Class I Division 2 Groups A, B, C, D | CSA-US Certified, CSA Certified, FM Approved | 0000000 | 000000 |
Surface-Mount Temperature Switches
Often used to control heat cable output, these switches maintain your surface’s temperature by turning equipment on or off when they reach a set temperature. They actuate when the temperature rises to the setpoint and reset when the temperature falls below the reset point. Since they're SPDT (single pole, double throw) switches, they control one circuit and can either be wired to turn one device from on to off (normally closed) or from off to on (normally open). Wire them normally closed to power a heater—when the temperature rises to the setpoint, the heater will turn off until the temperature falls below the reset point. Or wire them normally open to turn on alarms or other devices when the temperature rises above the setpoint. Their setpoint isn’t adjustable, so they’re easy to set up and there’s no risk of unintentional changes.
CSA and CSA-US certified, they meet Canadian and American safety standards.
For technical drawings and 3-D models, click on a part number.
Mounting Holes | SPDT | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Actuation Point, °F | Actuation Tolerance | Approx. Difference Between Setpoint and Reset Point, °F | Max. Switching Current @ Voltage (Electrical Phase) | Ht. | Wd. | No. of | Dia. | Specifications Met | Each | |
Nonadjustable Rising Actuation Point | ||||||||||
| 47° | ±6° F | 10° | 15 A @ 240 V AC (Single) | 1 1/8" | 2" | 2 | 3/16" | CSA Certified, CSA-US Certified | 0000000 | 0000000 |
| 60° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 1 1/8" | 2" | 2 | 3/16" | CSA Certified, CSA-US Certified | 0000000 | 000000 |
| 75° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 1 1/8" | 2" | 2 | 3/16" | CSA Certified, CSA-US Certified | 0000000 | 000000 |
| 105° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 1 1/8" | 2" | 2 | 3/16" | CSA Certified, CSA-US Certified | 0000000 | 000000 |
| 200° | ±6° F | 15° | 15 A @ 240 V AC (Single) | 1 1/8" | 2" | 2 | 3/16" | CSA Certified, CSA-US Certified | 0000000 | 000000 |