Product Manual B

3. Wiring 5-2019
14 0962-0617 (Issue 8)Copyright © 2019 Cummins Inc.
Set Screw Socket Size (Across Flats) Minimum Torque For Proper Operation
9/16 In 600 In-lbs (68 N•m)
WARNING
AC voltages and currents present an electrical shock hazard that can cause severe personal
injury or death. Make sure that both AC power sources are disconnected.
6. Make sure that both AC power sources are disconnected.
7. For 800-1000 amp transfer switches used on a circuit capable of delivering 50,000 amps @ 600
volts, wrap the line cables together with nominal 1/2-inch nylon rope, or rope having a minimum
tensile strength of 4200 pounds, at five inches from the line terminals with four wraps.
No. Description No. Description
1 Normal Lugs 7 Emergency Lug (4 Pole Only)
2 Normal Lug (4 Pole Only) 8 Ground Lugs
3 Remove Switch Cover for Lug Access 9 Emergency Lugs
4 Load Lug (4 Pole Only) 10 TB2
5 Load Lugs 11 TB1
6 Neutral Lugs (3 Pole Only)
FIGURE 6. 150-260 AMPERE, 3 AND 4-POLE TRANSFER SWITCH TERMINAL LUG ACCESS