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10. typical connections to supply standby power – Hobart Welding Products OM-494 User Manual

Page 60

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OM-494 Page 56

10-10. Typical Connections To Supply Standby Power

S-0405-A

1

Power Company Service
Meter

2

Main and Branch Overcurrent
Protection

3

Double-Pole, Double-Throw
Transfer Switch

Obtain and install correct switch.
Switch rating must be same as or
greater than the branch overcurrent
protection.

4

Circuit Breakers or Fused
Disconnect Switch

Obtain and install correct switch.

5

Extension Cord

Select as shown in Section 10-11.

6

Generator Connections

Connect terminals or plug of ade-
quate amperage capacity to cord.
Follow all applicable codes and
safety practices.

Turn off or unplug all equipment
connected to generator before
starting or stopping engine. When
starting or stopping, the engine has
low speed which causes low volt-
age and frequency.

7

Load Connections

.

Customer-supplied equipment is required if
generator is to supply standby power during
emergencies or power outages.

120/240 Volt

60 Hz

Three-Wire

Service

240 V

120 V

120 V

Neutral

240 V

120 V

120 V

120/240 Volt

Single-Phase

Three-Wire

Generator Output

Connection

Ground

F1

or

CB

240 V

120 V

120 V

Load

1

2

3

6

7

4

5

Item 4 is not necessary if circuit
protection is already present in
welding generator auxiliary
power output circuit.