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Square D > On-line Catalog > Products > NEMA Contactors and Starters > Combination Starters—NEMA Rated: Fusible Disconnect Switch Type

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Combination Starters—NEMA Rated

Fusible Disconnect Switch Type

Class 8538 / Refer to Catalog 8538CT9701

General Information

Class 8538 and 8539 Type S combination starters combine the requirements of motor overload and short circuit protection into one package. These starters are manufactured in accordance with NEMA standards and are UL Listed (although some Form numbers may not be listed—contact your local Square D representative for information). Class 8538 and 8539 combination starters are designed to operate at 600 Vac maximum, 50 to 60 Hz—and are supplied with melting alloy overload relays as standard.

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

Note that prices shown do not include thermal units. Devices require 3 thermal units. Standard trip thermal units are $14.30 each. See page 16-129 for selection information. For class J fuse clip, use Form Y1072 (no charge).
Fuse
Clip
Size
(A)
NEMA 1
General Purpose
Enclosure
NEMA 4 & 4X
Watertight
and Dusttight
Enclosure
Stainless Steel (304)
(Sizes 0-5)c
NEMA 4X
Watertight,
Dusttight and
Corrosion Resistant
Polyester Enclosure
NEMA 12/3Rb
Dusttight and Driptight
Industrial Use Enclosure
Motor
Voltage
(Starter
Voltage)
Max.
Hp
Poly-
phase
NEMA
Size
With
External
Reset
Without
External
Reset
200
(208)
  3
  5
    7-1/2
 10
 20
 25
 40
 75
230
(240)
  3
  5
    7-1/2
 15
 25
 30
 50