Wiring 3-7
Control Power Control Wiring
Refer to the product nameplate for control terminal wire capacity and
tightening torque requirements. Each control terminal will accept a
maximum of two wires. Refer to the product nameplate prior to
applying control power. Depending on the specific application,
additional control circuit transformer VA capacity may be required.
Controllers rated 5…480 A
The SMC-Flex controllers rated 5…480 A accept control power input
of 100…240V AC or 24V AC/DC, (+10/–15%) single-phase, 50/
60 Hz. A control power source of 125 VA is required. The control
power requirement for the control module is 75 VA. The control
power requirement for the fans is 20 or 50 VA. The control module
and fans are separately wired. The control module requirements are
shown in Table 3.E. The fans require additional power as defined in
Table 3.G.
Table 3.E Control Module Requirements
Controllers rated 625…1250 A
For controllers rated 625…1250 A, common control is required for
proper operation. Control power is connected to the product through
terminal block CP1, at terminals 1 and 4. This single connection point
feeds the control module, contactors, and fans. Control power must be
supplied as 110/120 VAC or 230/240 VAC, 50/60 Hz only. A control
power source of at least 800 VA is required. The control power
requirements include the control module (75 VA), bypass contactors
(526 VA max), and fan power (150 VA).
Depending on the specific application, additional control circuit
transformer VA capacity may be required.
120…240V AC Transformer 75 VA
24V AC Transformer 130 VA
24V DC
Inrush Current 5 A
Inrush Time 250 ms
Transient Watts 60 W
Transient Time 500 ms
Steady State Watts 24 W
Minimum Allen-Bradley Power Supply 1606-XLP50E
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