Technical data

CAT.201.01.T.E For more information contact Cutler-Hammer at: www.ch.cutler-hammer.com/catalog
33-7
January 2001
NEMA Contactors & Starters
33
Starters — 3-Phase, Full Voltage
Freedom Line — Non-reversing and Reversing
Vol. 2, Ref. No. [0023]
Contents
Description Page
Product Family Overview
Product Description . . . . . . 33-2
Application Description . . . 33-2
Features . . . . . . . . . . . . . . . 33-2
Standards and
Certifications . . . . . . . . . . 33-3
Starters — 3-Phase Non-reversing
and Reversing, Full Voltage
Product Description . . . . . . 33-7
Features . . . . . . . . . . . . . . . 33-7
Technical Data . . . . . . . . . . 33-8
Wiring Diagrams . . . . . . . . 33-8
Product Selection. . . . . . . . 33-9
Starters — 3-Phase Multispeed
Product Selection. . . . . . . . 33-10
Starters — Single-Phase
Non-reversing, Full Voltage
Product Description . . . . . . 33-11
Wiring Diagrams . . . . . . . . 33-11
Product Selection. . . . . . . . 33-11
Technical Data . . . . . . . . . . . . . 33-12
Accessories . . . . . . . . . . . . . . . 33-15
Auxiliary Contacts . . . . . . . 33-19
DC Magnet Coils . . . . . . . . 33-21
Mounting Plates . . . . . . . . . 33-22
Special Modifications . . . . . . . 33-23
Renewal Parts . . . . . . . . . . . . 33-24
Dimensions . . . . . . . . . . . . . . . 33-26
Product Description
Non-reversing
Three-phase, full voltage magnetic
starters are most commonly used to
switch AC motor loads. Starters con-
sist of a magnetically actuated switch
(contactor) and an overload relay
assembled together.
Reversing
Three-phase, full voltage magnetic
starters are used primarily for revers-
ing of 3-phase squirrel cage motors.
They consist of two contactors and a
single overload relay assembled
together. The contactors are mechani-
cally and electrically interlocked to
prevent line shorts and energization
of both contactors simultaneously.
Features
■ Bimetallic Ambient Compensated
Overload relays — available in three
basic sizes covering applications up
to 900 hp — reducing number of
different contactor/overload relay
combinations that have to be
stocked.
These overload relays feature:
❑ Selectable Manual or Automatic
Reset operation.
❑ Interchangeable heater packs
adjustable ±24% to match motor
FLA and calibrated for 1.0 and
1.15 service factors. Heater packs
for smaller overload relay will
mount in larger overload relay —
useful in derating applications
such as jogging.
❑ Load lugs built into relay base.
❑ Single-phase protection, Class 20
or Class 10 trip time.
❑ Overload trip indication.
❑ Electrically isolated NO-NC con-
tacts (pull RESET button to test).
■ Long life twin break, silver cadmium
oxide contacts — provide excellent
conductivity and superior resistance
to welding and arc erosion. Gener-
ously sized for low resistance and
cool operation.
■ Designed to 3,000,000 electrical
operations at maximum hp ratings
up through 25 hp at 600V.
■ Steel mounting plate standard on all
open type starters.
■ Wired for separate or common
control.
Non-reversing
■ Holding circuit contact(s) supplied
as standard:
❑ Sizes 00 – 3 have a NO auxiliary
contact block mounted on right-
hand side (on Size 00, contact
occupies 4th power pole position
— no increase in width).
❑ Sizes 4 – 5 have a NO contact
block mounted on left side.
❑ Sizes 6 – 7 have a 2NO/2NC
contact block on top left.
❑ Size 8 has a NO/NC contact block
on top left back and a NO on top
right back.
Reversing
■ Each contactor (Size 00 – 8)
supplied with one NO-NC side
mounted contact block as standard.
NC contacts are wired as electrical
interlocks.
NEMA Size 1 — Cat. No. AN16BN0AB
NEMA Size 1 — Cat. No. AN56DN0AB
Tab3301.fm Page 7 Monday, October 23, 2000 9:49 PM