Product Manual A

3. Pre-Installation Considerations 7-2018

3.3 Required Items for Installation

Tools and materials are used for the installation of this generator set. These items

are identified in the following sections. Please refer to local codes and standards,

because they may affect the materials required.

Materials Required

NOTICE

Refer to local codes and standards, which may affect material requirements.

NOTICE

If a 100% rated breaker is used, 90 °C wire must be used for L1, L2, and L3

with the wire size determined by the 75 °C ampacity tables.

NOTICE

A UL-listed grounding electrode terminal within its ratings and suitable for

the application must be installed and labeled “Grounding Electrode

Terminal”.

Electrical Materials:

NOTICE

Class 1 wiring methods must be used for connecting the generator set.

• Four code compliant AC power wires will be needed: L1, L2, N and Gnd (add

another wire for 3-phase for a total of 5 AC wires)

• For RA switches, 4 DC control wires will be needed from the generator to the

transfer switch.

• Wire sizes (DC control and power and AC sense only):

◦ DC control or AC sense wires under 1000 feet circuit length => 18-14

AWG of the insulation type below

◦ DC control or AC sense wires 1000-2000 feet circuit length => 16-14 AWG

of the insulation type below

• All AC and DC wires and cables shall be rated 75 °C minimum, stranded

copper, and rated for wet locations.

◦ For wire sizes 14 AWG and larger, use insulation types including but not

limited to: RHW, RHW-2, THHW, THW, THW-2, THWN, THWN-2, XHHW,

XHHW-2, USE-2, ZW-2