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Watlow BLR77L5S7A Immersion Heater
  • Watlow BLR77L5S7A Immersion Heater
  • BLR77L5S7A-drawing

BLR77L5S7A screw plug immersion heater

  • Comes with a 30-amp DPST 100-550°F thermostat with a differential setting up to 12°F
  • in a general purpose enclosure and with 
  • (3) 316-ss passivated 7.625-inch immersed length heating elements
  • with epoxy resin end seals rated at 194°F and a thermowell for sensor.
  • The heater has no heat the first 2.625 inches from the screw plug and has
  • an approximate ship weight is 7/lbs.

Ships 5-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 CSA approved general purpose enclosure can be rotated to simplify connecting to existing conduits. The WATROD™ hairpin bends are re-compacted to maintain the mineral insulation density and maintain the dielectric strength and heat transfer efficiency. The heating elements have a bright annealing passivation for corrosion resistance and the elements have a support to ensure proper spacing to maximize the heater’s performance.

Product Details
1 Item

Data sheet

CSA general purpose
100° ~ 550°F range with up to 22° differential
Line power
480v AC 3-phase delta
3000 watt
2-1/2" NPT screw plug
Immersion Length