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Watlow BLR77L5C5A Immersion Heater
  • Watlow BLR77L5C5A Immersion Heater
  • Watlow BLR77L5C5A explosion proof immersion Heater

BLR77L5C5A screw plug immersion heater

  • DPST thermostat on/off differential up to 12°F
  • 2-1/2 inch 316-ss screw plug
  • (3) 64.5w/in² watt density 316-ss heating elements
  • epoxy resin element end seals rated 194°F
  • includes an integral thermowell
  • no heat first 2.625 inches from screw plug
  • wired in 3-phase delta
  • approximate ship weight is 12/lbs.

Ships 3-days after order entry.

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Features & Benefits of the Watlow® immersion heater

The integral thermowell provides a convenient method for temperature sensor insertion and allowing a replacement without draining the fluid being heated. The WATROD™ hairpin bend is re-compacted to maintain the mineral insulation density and maintain the dielectric strength and heat transfer efficiency. The heating element has a bright annealing passivation for corrosion resistance.

NOTE: A NEMA-7 enclosure designated for locations classified as Class-1, Division-1, Groups A,B,C, or D as defined in NFPA 70 is installed on this heater; however, is NOT CERTIFIED as installed on the heater. To obtain CSA certification as explosion proof Class-1, Groups B,C,D as installed on the heater, the end user must provide Watlow® the following intended process conditions: operating temperature, operating pressure, media type being heated, including the installation orientation of the heater (horizontal or vertical).

One conduit hub is supplied as per drawing.

Product Details
1 Item

Data sheet

Nema 7 & 4 hazardous & wet proof
60° ~ 250°F range with up to 12° differential
Line power
480v AC 3-phase delta
3000 watt
2-1/2" NPT screw plug
Immersion Length