Washdown Threaded Temperature Switches
Turn heating equipment on or off in washdown environments. To withstand splashing water, corrosive liquid, and dust, these switches have a housing that meets NEMA 4X. The threaded probe installs directly into tanks, pipelines, and other process components. Use the adjustment dial to set actuation points.
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).
Probe | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp. Range, °F | Temp. Accuracy, °F | No. of Actuation Points | Actuation Tolerance | No. of Circuits Controlled | Electrical Phase | Max. Switching Current @ Voltage  | Dia. | Lg. | Max. Pressure, psi | Ht. | Wd. | Dp. | Environmental Rating | Specifications Met | Each | |
Threaded Brass Probe—1/2 NPT Male | ||||||||||||||||
| 0° to 225° | ±5° | 2 | ±1% | 2 | Single | 15 A @ 125 V AC 15 A @ 250 V AC 15 A @ 480 V AC | 9/16" | 1 7/8" | 1,897 | 7 3/8" | 5 3/32" | 5 1/2" | NEMA 4X | UL Listed; C-UL Listed; CE Marked; FM Approved | 0000000 | 0000000 |
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).
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 |
| Packing Seals and Fittings | 0000000 | Each | 000000 |
High-Limit Temperature Controllers
To protect equipment and personnel, these controllers shut down your machine when it gets too hot. Reset them manually to turn your machine on again. They're often used as a fail-safe system and for triggering alarms.
Set the actuation point and adjust other settings with the keypad. To read the temperature, these controllers use a highly sensitive thermocouple probe (sold separately). They have one or two mechanical relays that actuate circuits directly. Mount them into instrumentation panels with DIN cutouts.
Controllers that are SPDT (single pole, double throw) can turn one circuit from off to on (normally open) or on to off (normally closed).
Controllers that are SPST-NO (single pole, single throw) can turn one circuit from off to on (normally open).
Remote-reset controllers are best for hard-to-reach locations. To operate, you’ll need to wire the remote reset input terminals, and the sensor must be below the set temperature.
To mount 1/16 DIN controllers to a surface or DIN rail, add DIN-rail/surface-mount adapters. To convert larger cutouts to fit 1/16 DIN controllers, add DIN cutout adapters.
Mechanical Relay | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Total No. of Outputs | Output Type | Industry Designation | Max. Switching Current @ Voltage | For Probe Type | Reset Type | Input Voltage Range | Environmental Rating | Features | Each | |
1/16 DIN—For 1 3/4" Ht. x 1 3/4" Wd. Panel Cutout | ||||||||||
| 1 | Heating—One Mechanical Relay | SPDT | 2 A @ 240 V AC | Thermocouple | Manual | 90V AC to 264V AC | IP20, IP30 | Remote Reset | 0000000 | 0000000 |
| 2 | Heating—Two Mechanical Relays | SPST-NO SPDT | 2 A @ 240 V AC | Thermocouple | Manual | 90V AC to 264V AC | IP20, IP30 | __ | 0000000 | 000000 |
1/4 DIN—For 3 5/8" Ht. x 3 5/8" Wd. Panel Cutout | ||||||||||
| 2 | Heating—Two Mechanical Relays | SPDT | 2 A @ 240 V AC | Thermocouple | Manual | 90V AC to 250V AC | IP20, IP30 | Remote Reset | 0000000 | 000000 |
Mounting | ||||
|---|---|---|---|---|
| Fasteners Included | Screw Size | Number of Holes | Each | |
| No | No. 6 | 2 | 000000000 | 000000 |
