H1-2531-K: 60°-250°F DPST Heating Line Voltage Mechanical Thermostat with SPST 15° Over-Temperature Cut-Out And Pilot Light, 120 to 480VAC
Description
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Our H1-2531-K heating control with a manual reset 15° over-temperature cut-out and pilot light which has a temperature range of 60°-250°F, and is rated for 120 to 480VAC. (Note the default pilot light has a MAX. 277VAC rating - if you are using the control's pilot light above 277VAC, please contact us before purchasing.) See chart below for non-inductive Amperage ratings.
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Capillary & Sensing Bulb: This H1-2531-K control has a copper 36" (±1") capillary with a 3/8" DIA. x 3-29/32" (±1") long sensing bulb. This control has a maximum temperature differential of ±11°.
- Manual-Reset Thermal Cut-Out: breaks circuit when temperature reaches 15° above set temperature for safety.
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Application: This non-programmable, snap-acting, mechanical Double Pole, Single Throw (DPST) thermostat with a manual-reset over-temperature cut-out is for heating control only. (This will not work for cooling applications.)
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Our H1-2531K Control May Be Wired Two Ways:
- DPST Wiring with SPST over-temperature cut-out; normally closed. It must be reset manually.
- SPST Wiring with SPST over-temperature cut-out; normally closed. it must be reset manually.
- Dial & Mounting: Includes Red 60°-250°F Dial and Hardware Kit With Screws For Mounting.
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Usage: These controls are commonly used in tanks, ovens, cleaning baths, and many other applications and automatically turn off heating equipment when the set temperature is reached and where over-temperature cut-out protection is desirable.
IMPORTANT NOTE: If load amperage or voltage exceeds the switch rating, a magnetic contactor must be used.
H1 Thermostat Installation Instructions & Wiring Diagrams
Pilot Light:
- The default pilot light is rated up to 277VAC. If you are using the control for voltages above 277VAC, then the pilot light will need to be upgraded - Please contact us at customer.service@thermcoil.com or 1-724-872-5007 to order the upgrade!
Technical Information
- Switch Type: DPST (double pole, single throw). A DPST switch turns up to two independent circuits on or off.
- Switch Action: Normally Closed Contacts Open on Temperature Rise Only.
- Cut-Out Type: SPST (single pole, single throw). A SPST switch turns a single circuit on or off.
- Cut-out Reset Type: Manual Rest Button.
- Cut-Out Temperature: 15° Above Set Temperature.
- Thermostat Voltage: 120 to 480VAC
- Non-Inductive Amperage Rating: See chart below.
- Minimum Amperage Required: 5 Amps (When below 5 Amps, the thermostat will not be able to maintain desired temperature reliably, or at all, and may fluctuate wildly in differential.)
- Temperature Control Range: 60°F to 250°F
- Maximum Temperature Differential: 11°
- Capillary Length: 36" (±1")
- Sensing Bulb Diameter: 3/8"
- Sensing Bulb Length: 3-29/32" (±1")
- Capillary and Sensing Bulb Material: Copper
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Thermostat Height x Width: 4-3/32" x 3-1/16"
- U.L. Listed and C.S.A. Certified.
C.S.A. RATING
125 VA, 125 VAC
35 AMP RES 125 VAC
25 AMP RES 250 VAC
U.L. RATING
30 AMP RES 277 VAC
250 VA 120-277 VAC