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S&C Instruction Sheet 1045M-510
Before Switch Operator Installation
(a) Open the faceplate and make sure the 24-volt circuit breaker (near the center of
the enclosure) is in the Off setting. Remove the ac line fuse (see Figure 1).
(b) Remove the shipping plug from the conduit hole, and install 120-Vac control
power. Figure 1 shows the location of the terminal strip.
NOTICE
The neutral is connected to ground inside the switch operator. This means power
may not be supplied from a circuit protected by a ground fault circuit interrupter
(GFCI). If GFCIs are installed on all available sources of ac power, use an isolation
transformer to power the switch operator.
STEP 3.
Check the batteries. The 6801M Switch Operator is shipped with two C&D
Technologies UPS12-150MR 12-volt batteries (or other approved batteries).
Check with S&C Electric Company before using batteries of a type or capacity
other than those supplied.
WARNING
The 6801M batteries are capable of short circuit currents exceeding 2,000 amperes.
Electrical fires and physical harm can be caused by allowing the terminals of the
batteries to be shorted. Handle the batteries with care and be sure to fasten the
batteries securely to the enclosure during installation. Use insulated tools to tighten/
loosen the battery connections, and turn off the 24-volt circuit breaker before
installing or removing the batteries.
NOTICE
Operation of the switch operator for extended periods below -30º C (-22º F)
requires fully charged batteries. New batteries are shipped from the manufacturer at
approximately 95% capacity. Prior to use at extremely low temperatures, be sure to
charge the batteries long enough to bring them to full capacity.
(a) Inspect the batteries for signs of damage. The cases should not be cut or nicked.
Note:
Some bulging of the battery case is normal, but it should not exceed
about
1/8
-inch (3 mm).
(b) Use a voltmeter to check the voltage for each battery. Assuming the batteries
have not been charged in the last 12 hours, replace them if their voltage at room
temperature is below 12.25 Vdc each.
Figure 1. The 6801M Switch Operator power wiring.
Battery
Dc circuit
breaker
Terminal strip and
ac line fuse
