S&C CS-1A User Manual

S&C Instruction Sheet 719-500 11
Installation
Making Conduit Connections and Connecting
External Control-Circuit Wiring
NOTICE
To avoid accidental energizing of the operator after the
external connections have been completed, remove
the two-pole pull-out fuseholders for the motor, space-
heater, and (if applicable) shunt-trip circuits� See Figure 3
on page 9� Reinsert the fuseholders only when indicated
in the steps which follow�
STEP 1� Mark the conduit-entrance location for the
control circuit wiring on the conduit-entrance
plate in the bottom of the switch operator enclo-
sure. See Figure 3 on page 9.
STEP 2� Remove the conduit-entrance plate and cut out
the necessary opening. (If the circuit-switcher is
equipped with optional S&C Shunt-Trip Device,
an entrance cutout for an additional one-inch
conduit should also be made at this time.)
STEP 3� Replace the conduit-entrance plate and assemble
the entrance ttings. Apply sealing compound
(provided with each switch operator) when
replacing the conduit entrance plate. Verify the
entrance ttings are properly sealed to prevent
water ingress.
STEP 4� If the circuit-switcher is equipped with the
optional shunt-trip device, install the one-inch-
diameter conduit between adjacent shunt-trip
solenoid housings and between one solenoid
housing and the switch operator. Refer to S&C
Instruction Sheet 711-600.
STEP 5� Remove the blocking labels (G-3684) from the
motor contactors. Connect the external control-
circuit wiring (including space-heater source
leads) to the terminal blocks of the switch
operator in accordance with the wiring diagram
furnished.
NOTICE
Observe recommended minimum wire size requirements
for the control-circuit wiring and the shunt-trip device
wiring where applicable, as shown in S&C Data Bulletin
719-60 and on the switch operator schematic wiring
diagram furnished�

S&C CS-1A Specifications

General

Brand	S&C
Model	CS-1A
Category	Switch
Language	English