Three Phase Motor Data Calculator

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

½ Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

½ Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

½ Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

3/4 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

3/4 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

3/4 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

1 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

1 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

1 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

1-1/2 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current ET Inverse Time Circuit Breaker Rating ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

1-1/2 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current ET Inverse Time Circuit Breaker Rating ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

1-1/2 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

2 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

2 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

2 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

3 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

3 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

3 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

5 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

5 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

5 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

7.5 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

7.5 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

7.5 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

10 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

10 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

10 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

15 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

15 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

15 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

20 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

20 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

20 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

25 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

25 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

25 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

30 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

30 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

30 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

40 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

40 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

40 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

50 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

50 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

50 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

60 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

60 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

75 Horsepower 3 Phase 208 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

75 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

75 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

100 Horsepower 3 Phase 208 Volt Motor

273.0 400 400 400 400 500 3 2 to 4/0 2.5

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

100 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

100 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

125 Horsepower 3 Phase 208 Volt Motor

343.0 600 600 500 600 2 to 4/0 2.5 2 to 300 3

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

125 Horsepower 3 Phase 230 Volt Motor

312 500 600 450 400 2 to 3/0 2.5 2 to 250 3

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

125 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

150 Horsepower 3 Phase 208 Volt Motor

396.0 600 600 600 600 2 to 250 3 2 to 350 3.5

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

150 Horsepower 3 Phase 230 Volt Motor

360 600 600 500 600 2 to 4/0 2.5 2 to 300 3

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

150 Horsepower 3 Phase 460 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

200 Horsepower 3 Phase 208 Volt Motor

528.0 800 800 — 800 2 to 400 3.5 3 to 300 4

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

200 Horsepower 3 Phase 230 Volt Motor

Motor Full Load Current Recommended ET Inverse Time Circuit Breaker Rating Recommended ETIU Instantaneous Only Trip Circuit Breaker Rating Recommended Time Delay Fuse Rating Recommended Enclosed Switch Max Rating * Copper Conductor Size THWN (75 Degree ‘C’) Conduit Size Copper Conductors Aluminum Conductor Size THWN (75 Degree ‘C’) Conduit Size Aluminum Conductors *Enclosed switch maximum rating requires use of time delay fuse.

200 Horsepower 3 Phase 460 Volt Motor