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Square D > On-line Catalog > Products > NEMA Contactors and Starters > Combination Starters—NEMA Rated: MAG-GARD Circuit Breaker

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Combination StartersNEMA Rated

Class 8539 / Refer to Catalog 8538CT9701

MAG-GARD® Circuit Breaker

3-Pole Polyphase—600 Vac Maximum—50–60 Hz

Note that prices shown do not include thermal units. Devices require 3 thermal units (Sizes 00–6). Standard trip thermal units are $14.30 each. See page 16-129 for selection information.
NEMA 1
General
Purpose
Enclosure
NEMA
4 & 4X
Watertight
and Dusttight
Enclosure
Stainless Steel (304)
(Sizes 0–5)a
NEMA 4 & 4X
Watertight
Dusttight
and Corrosion
Resistant
Polyester
Enclosure
NEMAs 7 & 9
For Hazardous Locations
Class I, Groups C & D
Class II, Groups E, F & G
(Cast Aluminum)
Division 1 & 2
NEMA 12/3Rc
Dusttight and Driptight
Industrial Use
Enclosure
Motor Voltage
(Starter Voltage)
Hp
Range
Poly-
phase
NEMA
Size
Circuit
Breaker
(See
Page 7-31
for Breaker
Adjustment
Range)
SPIN TOP®
Type
With
External
Reset
Without
External
Reset
200
(208)
 1/4–1/3
1/2–1
1-1/2–3
1/4–1/3
 1/2–1
1-1/2–3
  5
  7-1/2
1-1/2–3
  5
7-1/2–10
 15–25
 30
 40
 50
 60
 75
230
(240)
1/4–1/3
1/2–1
1-1/2–3
1/4–1/3
1/2–1
1-1/2–3
  5–7-1/2
1-1/2–3
  5–7-1/2
 10
 15