Accessory List
SR201/301/601 Series
216
© Copyright 2006 TAC. All Rights Reserved. F-27382-1
TAC Erie™ Multi-Zone Circulator Control Relay
Model Chart
Specifications
The SR multiple-zone series control relays incorporate
up to six double pole/single throw relays (SR601/601AT)
providing control of up to six circulators and a boiler
operating control in a multi-zone hydronic heating
system. Field selectable priority for zone 1 eliminates
the need for additional relays to provide domestic hot
water priority.
Features:
• Field selectable priority zone.
• Sealed contact double pole/single throw relays.
• Field replaceable relays.
• High capacity transformer.
• LED status window.
• Zone expansion up to 10 amps of total switched line voltage.
• Common 24 Vac transformer terminal.
Model No Description
Priority
Plus
Dimensions in. (mm)
SR201 2 zone relay with Priority Plus.
a
a
In addition to priority only logic, Priority Plus allows non-priority heating zones to be locked out for up to one hour on a call for priority domestic hot water
heating.
Yes
5-18 x 2-15/16 x 12-5/16 (130 x 75 x 312)
SR201B 2 zone relay with Priority.
b
b
Priority only logic locks out non-priority heating zones indefinitely.
No
SR201AT 2 zone relay with auto-test. Yes
SR301 3 zone relay with Priority Plus.
a
Yes
SR301B 3 zone relay with Priority.
b
No
SR301AT 3 zone relay with auto-test and Priority Plus.
a
Yes
SR601 4 zone expandable to 6 zone relay with Priority Plus.
a
Yes
8 x 2-7/8 x 12-3/8 (213 x 73 x 314)SR601B 4 zone expandable to 6 zone relay with Priority.
b
No
SR601AT 4 zone expandable to 6 zone relay with auto-test and Priority Plus.
a
Yes
Inputs
Power input 120 Vac @ 50/60 Hz.
Thermostat Thermostatic anticipator setting: Set to actual current draw of system @ 24 Vac.
Outputs
Electrical
Relay rating: 1/3 HP @ 120 Vac, Full load: 10.0 amps, Locked rotor: 43.2 amps,
Resistive: 10.0 amps.
Environment
Ambient temperature limits Operating: maximum of 110°F (43°C).
Humidity 85% non-condensing RH.
Locations NEMA Type 1.
Dimensions Refer to Model Chart.
Agency Listing UL File E9429.
CUL Canadian Standard C22.2 #23-93.
General Instructions Refer to F-27019.
SR201/301
01 Series
US