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Honeywell RC840T-120 Electromechanical Relay

SKU: 375894
Save 62% · Retail: $87.73

   Available to Ship in 2-3 weeks

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About the Honeywell RC840T-120

Honeywell RC840T-120 Electromechanical Relay with 24 V - 120 V Transformer. The Relays compatible with 2- and 3-wire thermostat, this all-in-one relay includes a built-in 24 V Transformer.

Product Details

Manufacturer: Honeywell
Style: Parts
Mpn # RC840T-120
Weight 0.25 lbs.

Product Features

  • Direct replacement for any brand name relay
  • Built-in 24 V transformer for easy installation.
  • Compatible with 24V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C)
  • Immediate relay activation provides improved temperature control and comfort
  • Epoxy-soundproofed relay ensures quiet operation
  • Terminal board connection enables easy installation
  • Low current consumption means multiple relays can be controllers by a single thermostat


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