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
- Expandable to 6 zone relay