RT850/U

120 Vac TRIAC, solid-state heating relay without transformer

Overview

Compatible with Vac or Vdc signals, the RT850 enables unparalleled temperature precision in complete silence

Enables superior temperature control when used with 15-second cycle thermostats
Dual input: Compatible with a 24 Vac or 4-32 Vdc signal
Compatible with all 24 V thermostats with 2-wire connections (R,W) or 3-wire connections (R,W,C)
Heating command indicator light gives as-a-glance verification of relay operation
Simple installation in standard 4 in. x 4 in. electrical box
Terminal board connection enables easy installation

Application: Control a line voltage resistive load from a 24 Vac control signal or from signal sources of 4 to 32 VDC.
Dimensions (in.): 4-7/32 in. wide x 4-7/32 in. high x 1-29/32 in. deep
Dimensions (mm): 107 mm wide x 107 mm high x 48 mm deep
Used With: T114-A-024T-15S; TH115-A-024T-15S; TH150 Series
Comments: 100% Silent; Compatible with all 24 V thermostats with 2-wire connections (R, W) or 3-wire connections (R, W, C)
Item Type: Product
Frequency: 50 Hz; 60 Hz
Approvals, Underwriters Laboratories Inc.: Approved
Operating Humidity Range (% RH): 0 to 95% RH, non-condensing
Temperature Ratings (C): -20 C to 60 C
Temperature Ratings (F): -4 F to 140 F
Shipping and Storage Temperature Range (F): -40 F to 175 F
Shipping and Storage Temperature Range (C): -40 C to 80 C
Approvals, Canadian Underwriters Laboratories Inc.: Approved
Weight (oz): 15.3 oz
Weight (g): 434 g
Switching: TRIAC
Input Voltage: 120 Vac; 208 Vac; 240 Vac; 277 Vac
Control Signal: AC: 24V/32 mA; DC: 4 to 32V/16 mA
Transformer: 23 A @ 120/208/240/277/347 Vac
Terminal Wire size: 12 AWG