Worcester controls – Flowserve 72 Series Electri-SAFE User Manual

Page 3

WCAIM2049

Series 72 “Electric-SAFE” On/Off Operation Including CLC Option

DC Electrical Supply (on/off models with one integral solenoid):

With assembly complete to this point, it is convenient to make
conduit connections and bring wiring through enclosure. It should be
noted that the successful use of this device in hazardous atmospheres
or other detrimental environments depends on proper conduit
construction techniques.

The solenoid coil wattage and required amperage is as follows:

Voltage

Holding Amps

Watts

24 VDC

.45

A. Remove limit switch cover and gasket.

B. Attach power supply wires to terminal strip locations 7 and 8 per

the wiring diagram shown on previous page and also located on
the inside of the limit switch cover.

NOTE: All wiring to terminal strip should be inserted only to mid-
point of strip.

C. Attach the ground wire to the customer’s green grounding screw

located on the limit switch casting flange face.

AC Electrical Supply (CLC models with two integral solenoids):

Control solenoid wattage for 120 VAC and 240 VAC is 6 watts.

The failsafe solenoid coil wattage and required amperage is as follows:

Voltage

Holding Amps*

Watts

120 VAC 50/60 Hz

240 VAC 50/60 Hz

*Inrush is 80% greater than Holding values on AC solenoids.

A. Remove limit switch cover and gasket.

B. Attach power supply wires to terminal strip locations 7 and 8 per

the wiring diagram shown below and also located on the inside of
the limit switch cover.

NOTE: All wiring to terminal strip should be inserted only to mid-
point of strip.

C. Attach the ground wire to the customer’s green grounding screw

located on the limit switch casting flange face.

Flow Control Division

Worcester Controls

DC Wiring