SR501-HC-4 - Switching Relay

General Description

R W1 W2 C N H X1 X1 X2 X2 Hot side of transformer.

Connect to R on thermostat.

Switched R signal from thermostat #1.

Key Features

External Indicator Lights Simplified Wiring Sealed Relays 100% Factory Tested Contractor Friendly PC Board Layout Universal Thermostat Compatibility UL Approved Extended 3 Year Warranty 120 VAC.

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SR501-HC-4 switching relay by Taco - Datasheet Preview

Datasheet Details

Part number	SR501-HC-4
Manufacturer	Taco
File Size	208.74 KB
Description	Switching Relay
Datasheet	SR501-HC-4 Datasheet

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Full PDF Text Transcription (Reference)

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Instruction Sheet SUPERSEDES: June 1, 2010 Plant ID# 9300-2795 102-418 SR501-HC-4 Switching Relay, High Current Capacity EFFECTIVE: June 1, 2012 Features: External Indicator Lights Simplified Wiring Sealed Relays 100% Factory Tested Contractor Friendly PC Board Layout Universal Thermostat Compatibility UL Approved Extended 3 Year Warranty 120 VAC Application: 1 zone switching relay with boiler enable or 2 zone without boiler enable. 240 VAC Application: 1 zone switching relay when switching both of the circulator hot leads (L1 & L2). Operation: Connect a thermostat to the R & W1 and/or W2 terminals on the switching relay. When the thermostat(s) call for heat, the relays are energized and power is given to the circulator(s).