User manual
TVS user manual What you need to know before installing your TVS
11
Using power contactors to increase the capacity of relays
Phason’s 240-volt power contactors are heavy-duty relays that allow you to increase the load
handling capability of control relays. Power contactors are ideal for secondary ventilation fans and
electric heaters.
Phason’s power contactor relays have the following electrical ratings.
Coil: 10.2 mA at 240 VAC
Contact: 25 A at 240 VAC; resistive
2 HP at 240 VAC, 1 HP at 120 VAC; motor, power factor 0.4
1300 W at 120 VAC; tungsten
Phason offers three power contactor options.
Power contactor relay (PC-240) includes power contactor relay and mounting hardware for easy
mounting in an enclosure.
Power contactor kit (122-1) includes power contactor relay, on-off-auto switch and label,
snubber filter (reduces electrical noise), and mounting hardware for easy mounting in an
enclosure.
Power contactor unit (129-0) includes two power contactor relays, two on-off-auto switches, and
two snubber filters, mounted in a large enclosure. The enclosure has room for two additional
contactor relays or kits.
Precautions, guidelines, and warnings
Read Servicing and maintaining your TVS on page 42.
The TVS must be installed by a qualified electrician.
Before installing or servicing the TVS, switch OFF the power at the source.
Install the TVS and all equipment connected to it according to local electrical
codes.