12
DC Connection Procedure (for chargers with DC fuse not using battery disconnect)
To prevent the DC fuse from blowing when connecting the battery, connections should be done in the following
order:
1. Make sure that the incoming power to the charger is turned off.
2. Connect the negative battery cable to the charger’s DC output terminals.
OBSERVE PROPER POLARITY
.
3. Energize the charger by supplying AC voltage. This will charge the capacitors inside the charger and eliminate
heavy arcing when the battery is connected.
4. After 30 seconds, turn off the AC power and immediately connect the remaining positive battery cable.
5. Connect the DC loads.
OBSERVE PROPER POLARITY
.
6. Turn on the charger again by supplying AC voltage; it will commence charging the batteries and powering
the load.
DC Connection Procedure (for chargers with DC fuse and battery disconnect)
To prevent the DC battery disconnect breaker from tripping when connecting the battery, connections should be
done in the following order:
1. Make sure that the incoming voltage to the charger is turned off.
2. Make sure the battery disconnect breaker is open.
3. Connect the battery cables to the charger’s DC output terminals.
OBSERVE PROPER POLARITY
.
4. Energize the charger by supplying AC voltage and turning on/closing the charger’s AC breaker. This will charge
the capacitors inside the charger.
5. After 30 seconds, turn on/close the DC battery disconnect breaker.
DC Connection Procedure (for chargers with DC circuit breaker)
To prevent the DC circuit breaker from tripping when connecting the battery, connections should be done in the
following order:
1. Make sure that the incoming voltage to the charger is turned off.
2. Turn off/open the charger’s AC and DC circuit breakers.
3. Connect the battery cables to the charger’s DC output terminals.
OBSERVE PROPER POLARITY
.
4. Energize the charger by supplying AC voltage and turning on/closing the charger’s AC breaker. This will charge
the capacitors inside the charger and eliminate heavy arcing when the battery is connected.
5. After 30 seconds, turn on/close the DC breaker.
