Lincoln Electric 250 GXT Welder User Manual


 
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The Ranger® 250 GXT is suitable for temporary,
standby, or emergency power using the engine manu-
facturer’s recommended maintenance schedule.
The Ranger® 250 GXT can be permanently installed
as a standby power unit for 240V-3 wire, single phase
42 ampere service.
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1. Install a double pole, double throw switch between
the power company meter and the premises
disconnect.
Switch rating must be the same or greater than
the customer’s premises disconnect and service
overcurrent protection.
2. Take necessary steps to assure load is limited to
the capacity of the Ranger® 250 GXT by installing
a 50 amp 240V double pole circuit breaker.
Maximum rated load for the 240V auxiliary is 42
amperes. Loading above 42 amperes will reduce
output voltage below the allowable -10% of rated
voltage which may damage appliances or other
motor-driven equipment.
3. Install a 50 amp 120/240V plug (NEMA type 14-50)
to the Double Pole Circuit Breaker using No. 8,
4 conductor cable of the desired length. (The
50 amp 120/240V plug is available in the
optional plug kit.)
4. Plug this cable into the 50 amp 120/240V
receptacle on the Ranger® 250 GXT case front.
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Simultaneous welding and power loads are permitted
by following Table I. The permissible currents shown
assume that current is being drawn from either the
120V or 240V supply (not both at the same time).
Also, the “Output Control” is set at “10” for maximum
auxiliary power.
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Max. Stick or Wire
Feed Setting None 00
180 Stick Setting 5100 42 21
130 Stick Setting 7200 60
** 30
80 Stick Setting 8750 72
** 36
No Welding 10,000 84
** 42
Each duplex receptacle is limited to 20 amps.
Not to exceed 50A per 120VAC branch circuit when
splitting the 240 VAC output.