12
OPM-109
REV B
A. NEUTRAL LUGS:
These lugs are isolated from ground and provided for you to connect
your neutral wire from the transfer switch to the generator.
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#3/0 to 500 MCM and should be torqued to 28 ft. lbs. (Rated for 900 for
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The 400 Amp terminal block lugs on the 65 & 95kW will handle wire
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The 225 Amp terminal block lugs on the 20 to 45kW will handle wire
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B. GENERATOR CIRCUIT BREAKER:
This circuit breaker provides overload protection for the generator. Your
power feeds from the transfer switch will connect the bottom lugs on
the circuit breaker. The generator power feeds have already been wired
into the upper lugs.
Please refer to the circuit breaker installed on your unit for breaker lug
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generator amperage, found further in this manual. Then refer to
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amperage.
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National Electrical Code ANSI/NFPA 70.
C. GROUND LUG:
These ground lugs are bonded to ground and are provided for you
to connect your ground wire from the transfer switch to. The lugs will
accommodate #10 AWG to 2/0 AWG and should be torqued to 200 in.
lbs.
D: 120V GFCI CIRCUIT TERMINAL BLOCK:
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AWG to 18AWG. They should be torqued to 16 in. lbs. This circuit must
be fed from a fused circuit in the distribution panel and provides power
for the blockheater and the battery charger.
E: 120V/20 AMP DUPLEX RECEPTACLE:
This convenience receptacle is used to power both battery charge and
blockheater. This circuit must be fed from a GFCI fused circuit in the
distribution panel.
F: NEUTRAL TO GROUND LEAD LUG:
This lug is provided on the neutral terminal block to allow you to run
a neutral to ground lead if you are using the generator in a stand
alone application. This would be an application where there is not a
distribution panel and no other ground to neutral bond in the wiring
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neutral label in the panel. This will not be used when you are wiring a
generator and transfer switch into an existing power system.
WARNING:
A mainline circuit breaker has been provided inside the generator
housing. During all wiring installations, make sure the breaker is in the
OFF position and the generator operating switch is in the OFF position.
WARNING: EQUIPMENT DAMAGE:
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generator normally carries the high voltage on the G2 lead.
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GROUNDING
A grounding lug has been provided on the engine generator set and
the generator set must be properly grounded to good earth ground.
Generally an 8 foot copper rod driven into the earth will provide a
proper earth ground.
D.C. ELECTRICAL CONNECTIONS
All DC connections are completed on the terminal strip just below
the engine control. All DC connection must be separate conduit. You
cannot mix AC and DC leads at the same conduit.
CONNECTION BOX TERMINALS
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terminal lugs should be used for all connections. Torque spec for
terminal lugs is 9 in. lbs.
A. CUSTOMER REMOTE START CONNECTION TERMINALS.
The two remote start leads from the Automatic Transfer Switch are
connected to the two terminals marked GROUND & START. The WIRE
in terminal GROUND is battery negative and the wire in the terminal
labeled START is your remote start lead. Closing these two leads
together will signal the DSE 7310 MKII to go into an autostart mode
and start up the generator.
Depending on the distance, 14 to 16 gauge standard wire should be
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wires and the screws should be torqued to 9.6 in. lbs.
Note: Any relay closure can be used to start and stop this generator.
As long as the contact stays closed, the generator set will continue to
C
B
D
A
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