Defining Combination Motor Controllers (Nkjh) - ABB MS116 Manual

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
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
Disconnect
means
Short-circuit
and ground-
fault protec-
tion
Control means
Overload pro-
tection
Tested combi-
nation SCCR
Table 27: Defining Combination Motor Controllers (NKJH) Note: the information above is derived from UL 60947-4-1 and is intended for reference purposes
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).
APR I L 19
MA N UA L MOTOR START ER G UI D E
Figure 43: Defining Combination Motor Controllers (NKJH).
Type A Type B
Motor
Motor
disconnect
disconnect
UL 98 or UL 489 UL 98 or UL 489
Motor short-cir-
Fuses
cuit protector
UL 248
UL 60947-4-1
Magnetic or Magnetic or
solid-state solid-state
motor controller motor controller
UL 60947-4-1 UL 60947-4-1
Overload relay Overload relay
UL 60947-4-1 UL 60947-4-1
Straight Straight
voltage rated voltage rated
(e.g. 480 Δ) (e.g. 480 Δ)
Type C Type D
Instantaneous-
trip
Inverse-time
circuit-breaker
circuit-breaker
UL 489
UL 489
Magnetic or Magnetic or
solid-state solid-state
motor controller motor controller
UL 60947-4-1 UL 60947-4-1
Overload relay Overload relay
UL 60947-4-1 UL 60947-4-1
Straight Straight
voltage rated voltage rated
(e.g. 480 Δ) (e.g. 480 Δ)
only.
Type F
Type E
(two-component)
Manual
self-protected
combination
controller
UL 60947-4-1
Self-protected
Magnetic or
control device
solid-state
UL 60947-4-1
motor controller
UL 60947-4-1
Manual
self-protected
combination
controller
UL 60947-4-1
Slash Slash
voltage rated voltage rated
(e.g. 480Y/277V) (e.g. 480Y/277V)
Type F
(three-component)
Manual
self-protected
combination
controller
UL 60947-4-1
Magnetic or
solid-state
motor controller
UL 60947-4-1
Overload relay
UL 60947-4-1
Slash
voltage rated
(e.g. 480Y/277V)
72 /80