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Square D > On-line Catalog > Products > 12 Obsolete Motor Control Centers > Obsolete Motor Control Centers: Model 4 Circuit Breaker Type Combination Starters1B Wiring and 1 N.O. and 1 N.C. Auxiliary Interlock (Standard)

Supplemental and Obsolescence Digest 174

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Obsolete Motor Control Centers

Model 4 Circuit Breaker Type Combination Starters
1B Wiring and 1 N.O. and 1 N.C. Auxiliary Interlock (Standard)

 

NEMA
Starter Size
Space
Factor
No. of
Thermal Units Requiredc
1/4–1/3
1/4–1
1/2–1
1-1/2–3
1-1/2–3
7-1/2
5–10
1-1/2–3
7-1/2
5–10
15–20
7-1/2–10
15–20
7-1/2–10
25–30
15–25
40–50
NEMA
Starter Size
Space
Factor
No. of
Thermal Units Requiredc
1/4–1/3
1/4–1
1/2–1
1-1/2–3
1-1/2–3
5–10
15–20
7-1/2–10
NEMA
Starter
Size
C/B
Amp
No. of Thermal Units Requiredc