User manual
SEC-HD user manual What you need to know before installing your SEC-HD
11
Do not use Snubber filters with variable stages.
Some power contactors include snubber filters. For more information, read
Using power contactors to increase the capacity of relays below.
For more information about snubber filters or other Phason accessories, see
your dealer or visit www.phason.ca.
Electrical ratings
Input power
120/230 VAC, 50/60 Hz
Variable stages
(VAR 1, VAR 2)
Fuses (F2 and F3)
7 FLA at 120/230 VAC, PSC motor
1/2 HP at 120 VAC, 1 HP at 230 VAC, PSC motor
10 A at 120/230 VAC, general-purpose (resistive)
15 A, 250 VAC ABC-type ceramic
Relay stages
(STAGE 3, STAGE 4, STAGE 5)
Fuses (F1, F4, and F5)
6 A at 120/230 VAC, general-purpose (resistive)
1/3 HP at 120 VAC, 1/2 HP at 230 VAC
360 W tungsten at 120 VAC
12 A, 250 VAC ABC-type ceramic
Alarm relay
0.4 A at 125 VAC; 2 A at 30 VDC, resistive load
0.2 A at 125 VAC; 1 A at 30 VDC, inductive load
You can connect more than one piece of equipment to a variable stage or relay as long as they are the same type (for
example, two fans) and the total current draw does not exceed the stage’s limit.
The FLA (full load ampere) rating accounts for the increase in motor current draw
when the motor operates at less than full speed. Make sure the motor/equipment
connected to the variable stage does not draw more than 7 FLA.
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. For more information, read Replacement kits and
optional accessories on page 47