Taco® SR503-EXP-4 SR Expandable Switching Relay, 120 VAC, 20 A, DPDT Contact, 120 VAC V Coil
Part #:
555227
MFG #
SR503-EXP-4
Brand:
Taco®
- Description
- Specifications
- Features
- Documents
Taco®, SR503-EXP-4, Switching Relay, Expandable, Series: SR, 120 VAC, 20 A, 1/3 hp Power, 60 Hz Frequency, 120 VAC Coil, DPDT Contact Form, Screw Hole Mounting, 240 deg F, 6-3/4 in H x 10-1/4 in W x 2-3/4 in D Dimensions
Amperage Rating:
20 A
Domestic/Import:
Domestic
Frequency Rating:
60 Hz
Coil Voltage:
120 VAC
Contact Form:
DPDT
Mounting Type:
Screw Hole
Series:
SR
Temperature Rating:
240 deg F
Voltage Rating:
120 VAC
Power Rating:
1/3 hp
Warranty Length
3 Years
Features
External indicator lights|Fully enclosed snap-out relays|24 V power input or output terminal|Front Diagnostic Lights|Switchable Priority|Simplified Wiring|Built-in Priority Protection|Compact Design|Fuse Protected|100% Factory Tested|Isolated End Switch|Contractor Friendly PC Board Layout|Universal Thermostat Compatibility|24 Volt Power Output for hard wired thermostats|Field Replaceable Transformer|Add-on Power Control Plug|Built-in, Post Purge and Pump Exercise Functions|Switchable Primary Circulator Output|Two boiler contacts, utilizes full functionality of Mod-Con boilers|Interface with -EXP Zone Valve Controls
Standard Approvals
UL and CSA Approved|UL Listed