Electrical Connections - Baldor GLC30 Installation & Operating Manual

Electrical Connections Class 1 wiring methods must be used for field wiring connections to terminals of a class
2 circuit. It is the responsibility of the owner/operator to arrange for these procedures to be
performed by a licensed electrical contractor and ensure conformance to all applicable codes
including local codes peculiar to your municipality/city/county and state. Wire size and insulation
type should be as required by NEC (National Electrical Code) and local codes.
Warning: Never connect this generator to the electrical system of any building unless a licensed
electrician has installed an approved transfer switch. The national electrical code (NEC)
requires that connection of a generator to any electrical circuit normally powered by means of
an electric utility must be connected by means of approved transfer switch equipment to
isolate the electrical circuit from the utility distribution system when the generator is
operating. Failure to isolate the electrical circuits by such means may result in injury or death
to utility power workers due to backfeed of electrical energy onto the utility lines.
Warning: Incorrect installation of this generator set could result in property damage, injury or death.
Connection of the generator to its fuel source must be done by a qualified professional
technician or contractor.
WARNING: Be sure the system is properly grounded before applying power. Do not apply AC power
before you ensure that grounds are connected. Electrical shock can cause serious or fatal
injury. NEC requires that the frame and exposed conductive surfaces (metal parts) be
connected to an approved earth ground. Local codes may also require proper grounding of
generator systems.
Intended Use The intended purpose of this generator set is to provide emergency power when the main utility
power supply is interrupted. Therefore, it is important that all the wiring that connects the generator
set with your house, transfer switch, distribution box, battery charger, etc. be properly installed.
Circuit Protection Circuit protection is not provided within the generator. Circuit Breaker protection is an option.
If purchased with your generator, the breaker box is mounted to the generator prior to shipment.
If the optional circuit breaker protection was not ordered, see "GLC Circuit Breaker & Wire Size
Data" in Appendix A for recommendations.
Wire Size Proper lead wire from the circuit breaker to the automatic transfer switch (or load switching
device) is mandatory. See transfer switch information for connection information. When
connecting the generator output to an electrical load, a UL listed circuit breaker with the
appropriate ratings must be provided within 25 feet of the generator set. Use only copper wires.
Generator Rating Generator Rating
Catalog No.
GLC30
GLC35
GLC45
GLC50
GLC60
GLC80
GLC100
GLC125
Transfer Switch Considerations
The following are general considerations for the safe use of a transfer switch:
MN2408
3 Phase Amps (240VAC) *
Kilowatt (kW) Kilowatt (kW)
Nat. Gas
Rating
Delta (Wye)
30 110
35 125
45 150
50 175
60 200
80 300
100 300
125 450
1. The transfer switch should be located inside the building near the main breaker box or
the disconnect box.
2. The transfer switch must be kept away from any location that might allow water to get
on it.
3. If the transfer switch is mounted outside, it must be protected from the environment and
it's elements.
4. Do not mount the transfer switch on the generator set.
5. Do not mount the transfer switch where flammable liquids or vapors are present.
Input Breaker Rating (at 115% FLA) Input Breaker Rating (at 115% FLA)
3 Phase Amps (480VAC) *
LPG Nat. Gas
Delta (Wye) Delta (Wye)
110
125
175
175
200(225) 100
300 150
350 150
400 225
LPG
Delta (Wye)
60 60
60 60
70 80
90 90
110
150
175
200
Receiving & Installation 3-9