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Use only high quality, well-insulated, 3-wire, grounded cord
sets with the 120-volt duplex type receptacles. Cord sets
should be rated 15 AC amperes at 135 volts or greater.
120 VOLT LOCKING TYPE RECEPTACLE
CAUTION: Panel receptacles can supply only single-
phase AC output. Never connect any 3-phase electrical
load to a receptacle.
This locking type receptacle (Figure 6) is protected against
ground faults with a ground fault circuit interrupter (GFCI)
module. See Ground Fault Protection on Page 14. It is
also protected against overload by a 15-amp, push-to-reset
type circuit breaker. The receptacle, a NEMA L5-20R type,
requires a mating NEMA L5-20P connector plug. Use only
high quality, well-insulated, 3-wire, grounded cord set with
connector plug. The cord set must be rated for 15 AC
amperes at 135 volts (or greater) electrical loads.
Figure 6 - 120 Volt Locking Type
Receptacle
CAUTION: Any attempt to power total loads in
excess of 15 amperes from the 120V receptacle
pair, or the 120V locking type receptacle, will
trip open a circuit breaker, blocking power to
either receptacle.
120/208 TO 139/240 VOLTS, 50 AMP
LOCKING TYPE RECEPTACLE
CAUTION: Panel receptacles can supply only
single-phase AC output. Never connect any
3-phase electrical load to a receptacle.
Each of these receptacles are protected against overload
by two seperate 50 amp, flip-to-reset type circuit break-
ers. These receptacles are type CS6369 and require the
proper mating plugs. Use only high quality, well insu-
lated, 3-wire, grounded cord sets with a mating 50 amp
connector plugs. The cord sets used must be rated for
1-phase, 50 AC amps at 250 volts (or greater) electrical
loads (Figure 7).
8
Generac
Power Systems, Inc.
®
General Information
GR-210 Generator Set
Figure 7 - 120/208 Volts, 50 Amp Receptacle
The voltage on this receptacle can be adjusted between
120/208 volts and 139/240 volts. Adjusting for 127/220
volts AC with the voltage adjustment dial is also accept-
able for most 120/240 volts loads.
WARNING! Never unplug a connector plug from
any panel receptacle while an electrical load is
connected and turned on. Conversely, never
plug a load in while that load is turned on.
Dangerous electrical arcing can occur between
the receptacle and the connector plug.
FULL CAPACITY TERMINAL
COMPRESSION LUGS
Terminal compression lugs are provided in the two AC
power panels (Figure 8). Four terminal studs in one
panel are identified as N (neutral), E1, E2, and E3 high
voltage connections. The studs for low voltage connec-
tions are labeled L1, L2, L3 and N in the second panel.
These studs may be used to operate either single or 3-
phase electrical loads at up to the full-rated
wattage/amperage capacity for each mode of operation
(1 phase or 3 phase). Terminal stud AC output is limit-
ed by the generator's 700 amp main circuit breaker
(CB7) for 208 volts AC loads or the 300 amp main cir-
cuit breaker (CB8) for 480 volts AC loads.
Figure 8 - High Voltage Terminal Compression
Lugs
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