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Vulcan 1E1B9 thermostat, brass sheath, half-inch NPT thread

Vulcan

Vulcan 1E1B9 Thermostat Open on Rise -100 to 600F

SKU CH-QB8C-VARBS MPN 1E1B9

A process thermostat that opens on temperature rise from -100 to 600 °F with a 1/2 in. NPT thread and SPST switch rated at 10 A resistive

  • TypeLearning Thermostats
  • Wide temperature coverage for diverse processes
  • Open-on-rise action protects against overheating
  • SPST switch handles 10 A at 120 V
  • UL and CSA compliance ensures safety standards
  • 1/2 in NPT thread simplifies installation

Thermostat for food-service equipment

The Vulcan 1E1B9 is a process thermostat designed for fryers and similar food-service appliances. It operates on a control range from -100 to 600 degrees Fahrenheit with a differential of +/-1/2 degree Fahrenheit. The switch action is open on rise using a single SPST contact. Agency compliance includes UL and CSA certification.

Suited for direct immersion control

This unit fits equipment requiring a 1/2 inch NPT thread and a 5/8 inch sheath diameter with a 3 inch insertion depth. It handles resistive loads up to 10 A at 120 V and 5 A at 240 V. Buyers needing a close-on-rise action, multiple switch poles, or a different temperature range should look at other models.

SPST open-on-rise switching

The single-pole single-throw contact opens when temperature rises, cutting power to the heating element. Contact ratings are 10 A resistive at 120 VAC, 5 A resistive at 240 VAC, and 2 A at 120 VDC. This switching behaviour determines whether the thermostat matches the safety logic of the appliance.

Highlights

  • Wide temperature coverage for diverse processes
  • Open-on-rise action protects against overheating
  • SPST switch handles 10 A at 120 V
  • UL and CSA compliance ensures safety standards
  • 1/2 in NPT thread simplifies installation

Specifications

BrandVulcan
Model1E1B9
TypeLearning Thermostats

Questions about this item

What comes with the Vulcan 1E1B9 thermostat and what must be purchased separately?

The unit includes the Cal-Stat thermostat with a 5/8 inch sheath diameter, 4 1/2 inch overall length, 3 inch insertion depth and 1/2 inch NPT thread. Wiring, mounting hardware and any required fittings are not included and must be sourced separately.

Which switch configuration should be chosen for this model?

This model is a single SPST switch with Open on Rise action, rated 10 A resistive at 120 V, 5 A resistive at 240 V and 2 A at 120 VDC. No alternative switch types or contact ratings are offered for the 1E1B9.

How does the -100 to 600 °F control range perform in a fryer application?

The thermostat maintains temperature within a ±1/2 °F differential across the full -100 to 600 °F range, making it suitable for fryers and other food-service equipment where tight control is required.

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