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DFARS Specialty Metals
Adjustable-Power Temperature Controllers for Plug-In Heaters
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Regulate the amount of power flowing to your heater with the turn of a dial. Instead of a temperature sensor or input, these controllers work like a dimmer on a light switch. To incorporate them, first plug in the temperature controller, then plug your heater into the socket on the bottom of the controller. These controllers are NEMA rated for use in hazardous, corrosive, dusty, and washdown environments.
Plug | Socket | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Output Voltage Range, V AC | Current, amp | Input Voltage, V AC | Electrical Connection | No. of Blades | NEMA Type | End Shape | NEMA Type | End Shape | Cord Lg., ft. | Ht. | Wd. | Dp. | Enclosure Rating | Each | ||
| 36 to 120 | 10 | 120 | Straight Blade | 3 | 5-15 | Straight | 5-15 | Straight | 6 | 4 5/8" | 2 11/16" | 2" | NEMA 4X, NEMA 7 | 4550T5 | 000000 | |
Remote-Sensing Hazardous Location Line-Voltage Thermostats
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Place sensor in enclosures or different rooms than the rest of the thermostat to control temperature from outside the space. Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present.
Hazardous Location Rating—Thermostats are rated Class I, Divisions 1 and 2, Group D; and Class II, Divisions 1 and 2, Groups E, F, and G.
Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voltage, V AC | Current, amp | Temp. Setting, ° F | Switch Designation | Electrical Connection Type | Ht. | Wd. | Dp. | Sensor Cord Lg., ft. | For Use Outdoors | Mounting Fasteners Included | Mounting Hole Dia. | Display Type | Hazardous Location Rating | Enclosure Rating | Certification | Each | |||
For Air Conditioners and Heaters | |||||||||||||||||||
Dial Control | |||||||||||||||||||
| 120 to 277 | 22 | 20 to 80 | SPDT | Hardwire | 5 7/8" | 3" | 3 1/4" | 6 | No | No | 3/8" | Analog | NEC Class I Divisions 1, 2 Group D; NEC Class II Divisions 1, 2 Groups E, F, G | NEMA 7, NEMA 9 | CSA Certified, UL Listed | 1877K24 | 0000000 | ||
Hazardous Location Threaded Temperature Switches
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Often used in hazardous locations, such as chemical plants, refineries, and grain elevators, these switches have a housing that’s UL listed for environments with flammable gases, combustible dust, and ignitable fibers. It 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. The housing also meets NEMA 4X for use in washdown environments with splashing water, corrosive liquid, and dust. Install the threaded probe directly into tanks, pipelines, and other process components to turn heating equipment on or off at a specified temperature. Set actuation points with the adjustment dial.
1 Actuation Point—Switches with one actuation point have one SPDT (single pole, double throw) relay. The relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed).
2 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 | SPDT | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Temp. Range, ° F | Temp. Accuracy | No. of Actuation Points | Actuation Tolerance | No. of Circuits Controlled | Max. Switching Current @ Voltage (Electrical Phase) | Dia. | Lg. | Max. Pressure, psi | Ht. | Wd. | Dp. | Enclosure Rating | Hazardous Location Rating | Certification | Each | |||
Threaded Brass Probe—1/2 NPT Male | ||||||||||||||||||
Adjustable Actuation Point | ||||||||||||||||||
| 0 to 225 | ±2° F | 1 | -1% to 1% | 1 | 15 amp @ 125V AC (Single) 15 amp @ 250V AC (Single) 15 amp @ 480V AC (Single) | 9/16" | 1 7/8" | 1,897 | 10" | 5 1/8" | 5 3/16" | IP66, NEMA 4X, NEMA 7, NEMA 9 | ATEX II 2 D Ex Tb IIIC T85° C Db ATEX II 2 G Ex Db IIC T6 Gb IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IECEx Ex D IIC T6 Gb IECEx Ex Tb IIIC T85° C Db 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 | UL Listed, C-UL Listed, CE Marked | 5032K67 | 0000000 | ||
| 0 to 225 | ±2° F | 2 | -1% to 1% | 2 | 15 amp @ 125V AC (Single) 15 amp @ 250V AC (Single) 15 amp @ 480V AC (Single) | 9/16" | 1 7/8" | 1,784 | 10" | 5 1/8" | 5 3/16" | IP66, NEMA 4X, NEMA 7, NEMA 9 | ATEX II 2 D Ex Tb IIIC T85° C Db ATEX II 2 G Ex Db IIC T6 Gb IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IECEx Ex D IIC T6 Gb IECEx Ex Tb IIIC T85° C Db 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 | UL Listed, C-UL Listed, CE Marked | 5032K87 | 00000000 | ||
Hazardous Location Wall-Mount Temperature Switches
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With Threaded Probe | With Unthreaded Probe |
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.
1 Actuation Point—Switches with one actuation point have one SPDT (single pole, double throw) relay. The relay can be set to turn one circuit from off to on (normally open) or from on to off (normally closed). The probe has 1/2 NPT male threads for installation directly into tanks, pipelines, and other process components. It comes with a bushing that adapts the thread size to 3/4 NPT male.
2 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 | Temp. Accuracy | No. of Actuation Points | Max. Switching Current @ Voltage (Electrical Phase) | Dia. | Lg. | Ht. | Wd. | Dp. | Enclosure Rating | Hazardous Location Rating | Includes | Each | |||
SPDT—1 Circuit Controlled | |||||||||||||||
Threaded Stainless Steel Probe—1/2 NPT Male | |||||||||||||||
| 30° F to 250° F | ±5° F | 1 | 15 amp @ 125V AC (Single) 15 amp @ 250V AC (Single) 15 amp @ 480V AC (Single) | 3/8" | 2 5/8" | 9 5/16" | 5 1/8" | 5 3/16" | IP66, NEMA 4X, NEMA 7, NEMA 9 | ATEX II 2 D Ex Tb IIIC T85° C Db ATEX II 2 G Ex Db IIC T6 Gb IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IECEx Ex D IIC T6 Gb IECEx Ex Tb IIIC T85° C Db 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 | 1/2 × 3/4 NPT Adapter Bushing | 5032K66 | 000000000 | ||
SPDT—2 Circuits Controlled | |||||||||||||||
Unthreaded Stainless Steel Probe | |||||||||||||||
| 30° F to 250° F | ±5° F | 2 | 15 amp @ 125V AC (Single) 15 amp @ 250V AC (Single) 15 amp @ 480V AC (Single) | 3/8" | 2 5/8" | 9 5/16" | 5 1/8" | 5 3/16" | IP66, NEMA 4X, NEMA 7, NEMA 9 | ATEX II 2 D Ex Tb IIIC T85° C Db ATEX II 2 G Ex Db IIC T6 Gb IEC Zone 1 Groups IIC, IIB, IIA IEC Zone 21 Groups IIIC, IIIB, IIIA IECEx Ex D IIC T6 Gb IECEx Ex Tb IIIC T85° C Db 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 | — | 5032K86 | 00000000 | ||
Hazardous Location Line-Voltage Thermostats
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Use to regulate line-voltage HVAC systems where flammable gases, vapors, and dust are present.
Hazardous Location Rating—Thermostats are rated Class I, Divisions 1 and 2, Groups C and D; and Class II, Divisions 1 and 2, Groups E, F, and G.
Cannot Be Sold To—Energy efficiency requirements restrict sales to the listed jurisdictions/areas.
Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voltage, V AC | Current, amp | Temp. Setting, ° F | Switch Designation | Electrical Connection Type | Ht. | Wd. | Dp. | For Use Outdoors | Mounting Fasteners Included | Mounting Hole Dia. | Display Type | Hazardous Location Rating | Enclosure Rating | Certification | Cannot Be Sold To | Each | |||
For Air Conditioners and Heaters | |||||||||||||||||||
Dial Control | |||||||||||||||||||
| 24 to 277 | 22 | 50 to 90 | SPDT | Hardwire | 5 3/4" | 6 3/8" | 5 5/8" | No | No | 1/4" | Analog | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | NEMA 7 | CSA Certified, UL Listed | Colorado | 1877K23 | 0000000 | ||
| 24 to 277 | 22 | 50 to 90 | DPDT | Hardwire | 5 3/4" | 6 3/8" | 5 5/8" | No | No | 1/4" | Analog | NEC Class I Divisions 1, 2 Groups C, D; NEC Class II Divisions 1, 2 Groups E, F, G | NEMA 7 | CSA Certified, UL Listed | Colorado | 1877K25 | 000000 | ||
