Generac — Surface Mount Installation Using Power Inlet Box
Installation · Transfer Switch
From a Generac service manual — check it applies to your exact model before use.
Browse Generac generators & specs →
Before you start
- Hazardous voltages inside transfer switch enclosures can cause death or severe injury
- Turn off main circuit breaker in load center before starting installation
Procedure
- Select a location on left or right side of load center; remove covers of load center and transfer switch, save screws
- Measure and cut conduit to length, snap fittings on ends, locate and remove matching knockout on load center
- Attach flexible conduit to both enclosures through a knockout, hold transfer switch against wall, mark and anchor to wall
- Fish pre-assembled wire harness through conduit, strip each wire 5/8" and connect to correspondingly marked circuit breakers
- Insert unmarked BLACK wires into UTIL MAIN 2-pole breaker; attach WHITE wire to neutral bar (right side), GREEN wire to ground bar (left side)
- Install conduit/fittings/wire between Power Inlet Box and transfer switch; connect PIB black wire to Meter A wiring, red wire to Meter B wiring (route through CTs on 6296/6380)
- In main load center, remove wires from breakers for relocated loads, connect harness wires with wire connectors per circuit worksheet
- Remove two adjacent single-pole breakers and install new 60A or 100A 2-pole breaker in their place; insert BLACK harness wires into new breaker
- Reinstall covers, turn ON main breaker in load center, turn on branch breakers, turn ON UTIL MAIN in transfer switch
Tools required
- 1/4" nut driver Amazon
- 2-1/8" hole saw Amazon
- screwdrivers Amazon
- electric drill Amazon
- wire cutter/stripper Amazon
- safety eye goggles Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.