ABB MS116 - Defining Combination Motor Controllers (NKJH)

MANUAL MOTOR STARTER GUIDE
APRIL 19 72/80
7.6.2 Defining Combination Motor Controllers (NKJH)
A Combination Motor Controller (CMC) is a single device, or assembly of devices, which provides the combined func-
tions of branch circuit disconnect means, short-circuit protection, control means, and overload protection. These
are:
− Listed combinations tested according to UL 60947-4-1 and CSA C22.2 No.60947-4-1
− Tested in a single enclosure
− Tested for a complete branch short-circuit current rating; Type 1 or Type 2 coordination
Figure 43: Defining Combination Motor Controllers (NKJH).
The figure below shows the currently six construction types for Combination Motor Controllers. Manual motor start-
ers are used for Types E and F.
Tested in an enclosure Type A Type B Type C Type D Type E
Type F
(two-component)
Type F
(three-component)
Disconnect
means
Motor
disconnect
UL 98 or UL 489
Motor
disconnect
UL 98 or UL 489
Inverse-time
circuit-breaker
UL 489
Instantaneous-
trip
circuit-breaker
UL 489
Self-protected
control device
UL 60947-4-1
Manual
self-protected
combination
controller
UL 60947-4-1
Manual
self-protected
combination
controller
UL 60947-4-1
Short-circuit
and ground-
fault protec-
tion
Fuses
UL 248
Motor short-cir-
cuit protector
UL 60947-4-1
Control means
Magnetic or
solid-state
motor controller
UL 60947-4-1
Magnetic or
solid-state
motor controller
UL 60947-4-1
Magnetic or
solid-state
motor controller
UL 60947-4-1
Magnetic or
solid-state
motor controller
UL 60947-4-1
Magnetic or
solid-state
motor controller
UL 60947-4-1
Magnetic or
solid-state
motor controller
UL 60947-4-1
Overload pro-
tection
Overload relay
UL 60947-4-1
Overload relay
UL 60947-4-1
Overload relay
UL 60947-4-1
Overload relay
UL 60947-4-1
Manual
self-protected
combination
controller
UL 60947-4-1
Overload relay
UL 60947-4-1
Tested combi-
nation SCCR
Straight
voltage rated
(e.g. 480 Δ)
Straight
voltage rated
(e.g. 480 Δ)
Straight
voltage rated
(e.g. 480 Δ)
Straight
voltage rated
(e.g. 480 Δ)
Slash
voltage rated
(e.g. 480Y/277V)
Slash
voltage rated
(e.g. 480Y/277V)
Slash
voltage rated
(e.g. 480Y/277V)
Table 27: Defining Combination Motor Controllers (NKJH) Note: the information above is derived from UL 60947-4-1 and is intended for reference purposes
only.
A complete listing of ABB’s tested Combination Motor Controllers can be accessed online on UL’s website, using the keyword “ABB”
(http://ul.com/search/?q=ABB).