Honeywell RC840T-120/U Electromechanical Relay with Built-In Transformer

Product Description

The Honeywell RC840T-120/U is an electromechanical relay designed for controlling a line voltage resistive load from a low voltage thermostat. It operates with a control signal of 24V and 40 mA, ensuring reliable on and off switching. This relay includes a lock-nut and a transformer that provides a voltage conversion from 120V to 24V, simplifying installation.

• Direct replacement for any brand relay.
• Compatible with 24V thermostats with two or three-wire connections.
• Low current consumption allows control of multiple relays with a single thermostat.

Product Highlights

The Honeywell RC840T-120/U ensures efficient temperature control and comfort through immediate relay activation and quiet operation.

Product Information

Standard Information

• Brand: Honeywell
• Manufacturer Part Number: RC840T-120/U

Technical Specifications

• Application: Model TH140-28-01-B/TH135-01-B/TH114-A-024T/TH115-A-024T Programmable Hydronic Heating Thermostat
• Contact Form: ON/OFF
• Frequency Rating: 60 Hz
• Temperature Rating: -4 to 140 deg F
• Dimensions: 3-7/32 in W x 1-13/32 in D x 2-9/32 in H
• Includes: Lock-nut
• Standards/Approvals: cUL Listed, UL Listed