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5 INSTALLATION
Connection to Electrical Mains
Power Supply
The Weldmatic 180 is factory fitted with a
3 metre, 3 core 1.5mm
2
Heavy Duty PVC
mains power supply cable with moulded
3 pin, 10 Amp, Single Phase plug.
The minimum capacity of the mains wiring
and power outlet supplying a welder is
selected according to the effective primary
current of the equipment. The effective
primary current Ieff for the Weldmatic 180
is 10 Amps.
The minimum recommended mains circuit
breaker rating for a Weldmatic 180 is
20 Amps.
Supply Cable
If it becomes necessary to replace the
mains flexible supply cable, use only cable
with correct current rating.
The replacement cable must be fitted and
retained in the same manner as the original.
Successful Operation
Successful operation will depend on a
number of factors:
– Variation in circuit breaker thresholds.
– Ambient temperature
– Number of previous circuit breaker
operations
– Actual weld conditions, resulting in
higher weld currents
– Repeated starts can result in repeated
surge currents raising circuit breaker
threshold
– Low supply voltage, resulting in higher
supply current.
Repeated Circuit Breaker operation at weld
start can sometimes be overcome by using
a “D” curve Circuit breaker.
To reduce nuisance tripping, a higher
rated circuit breaker can be selected, but
the supply circuit wiring capacity must be
increased to suit.
