Motor Contactor
J7KN
49
Contactors
Utilization Categories
For easier choice of devices and in order to make the comparison of
different products simplier are utilization categories for contactors and
motor-starters according to IEC 947-4-1 and VDE 0660 Part 102 ,for
control circuit devices and switching elements according to IEC 947-5-
1 and VDE 0660 Part 200 determind. The table offers different utiliza-
tion categories, typical applications and assorted test conditions.
U
e
Rated operational voltage, U Voltage before make, U
r
Recovery voltage, I
e
Rated operational current, I Current make, I
c
Current broken
1) Test with incandescent lamps
2) Test conditions according to standard
Type of
current
Cate-
gory
Typical applications
Rated operational
current
Test conditions for the number of
on-load operating cycles
Test conditions for
making and breaking capacities
Make
Break
Make
Break
I/Ie
U/Ue
cos
Ic/Ie
Ur/Ue
cos
I/Ie
U/Ue
cos
Ic/Ie
Ur/Ue
cos
Alter
nating Current
AC1
Non-inductive or
slightly inductive loadsre-
sistance furnaces
all values
1
1
0.95
1
1
0.95
1.5
1.05
0.8
1.5
1.05
0.8
AC2
Slip-ring motors:
starting, switching off
all values
2.5
1
0.65
2.5
1
0.65
4
1.05
0.65
4
1.05
0.65
AC3
Squirrel-cage motors:
starting, switching off mo-
tors during running
17A< Ie
17A
6
1
0.65
1
0.17
0.65
10
1.05
0.45
8
1.05
0.45
Ie
100A 6
1
0.35
1
0.17
0.35
10
1.05
0.45
8
1.05
0.45
Ie>
100A 6
1
0.35
1
0.17
0.35
10
1.05
0.35
8
1.05
0.35
AC4
Squirrel-cage motors:
starting, plugging, inching
17A< Ie
17A
6
1
0.65
6
1
0.65
12
1.05
0.45
10
1.05
0.45
Ie
100A 6
1
0.35
6
1
0.35
12
1.05
0.45
10
1.05
0.45
Ie>
100A 6
1
0.35
6
1
0.35
12
1.05
0.35
10
1.05
0.35
AC5a Switching of electric dis-
charge lamp controls
all values
-
-
-
-
-
-
3
1.05
0.45
3
1.05
0.45
AC5b Switching of incandes-
cent lamps
all values
-
-
-
-
-
-
1.5
1.05
1)
4
1.05
1)
AC6a Switching of transformers
Ie
100A -
-
-
-
-
-
4.5
1.05
0.45
3.6
1.05
0.45
Ie>
100A -
-
-
-
-
-
4.5
1.05
0.35
3.6
1.05
0.35
AC6b Switching of capacitor
banks
-
-
-
-
-
-
-
2)
2)
AC7a Slightly inductive loads in
household appliances
and similar applications
all values
-
-
-
-
-
-
1.5
1.05
0.8
1.5
1.05
0.8
AC7b Motor loadsfor household
applications
Ie
100A -
-
-
-
-
-
8
1.05
0.45
6
1.05
0.45
Ie>
100A -
-
-
-
-
-
8
1.05
0.35
6
1.05
0.35
AC8a Hermetic refrigerant com-
pressor motor control with
manualresetting of over-
load releases
Ie
100A -
-
-
-
-
-
6
1.05
0.45
6
1.05
0.45
Ie>
100A -
-
-
-
-
-
6
1.05
0.35
6
1.05
0.35
AC8b Hermetic refrigerant com-
pressor motor control with
automatic resetting of
overload releases
Ie
100A -
-
-
-
-
-
6
1.05
0.45
6
1.05
0.45
Ie>
100A -
-
-
-
-
-
6
1.05
0.35
6
1.05
0.35
AC12 Control of resistive loads
and solid state loads with
isolation by opto couplers
all values
-
-
-
-
-
-
1
1
0.9
1
1
0.9
AC13 Control of solid state
loads with transformer
isolation
all values
-
-
-
-
-
-
10
1.1
0.65
1.1
1.1
0.65
AC14 Control of small electro-
magnetic loads (<=72VA)
-
-
-
-
-
-
-
6
1.1
0.7
6
1.1
0.7
AC15 Control of
electromagnetic load
(>72VA)
-
10
1
0.7
1
1
0.4
10
1.1
0.3
10
1.1
0.3
Make
L/R
Break
L/R
Make
L/R
Break
L/R
I/Ie
U/Ue
[ms]
Ic/Ie
Ur/Ue
[ms]
I/Ie
U/Ue
[ms]
Ic/Ie
Ur/Ue
[ms]
Dir
e
ct Curr
ent
DC1
Non-inductive or
slightly inductive loads re-
sistance furnaces
all values
1
1
1
1
1
1
1.5
1.05
1
1.5
1.05
1
DC3
Shunt-motors: starting,
plugging, inching dynamic
braking of d.c. motors
all values
2.5
1
2
2.5
1
2
4
1.05
2.5
4
1.05
2.5
DC5
Series-motors:
starting, plugging, inching
dynamic braking of d.c.
motors
all values
2.5
1
7.5
2.5
1
7.5
4
1.05
15
4
1.05
15
DC6
Switching of incandes-
cent lamps
all values
-
-
-
-
-
-
1.5
1.05
1)
4
1.05
1)
DC12 Control of resistive loads
and solid state loads with
isolation by opto couplers
all values
-
-
-
-
-
-
1
1
1
1
1
1
DC13 Control of electromagnets all values
1
1
300
1
1
300
1.1
1.1
300
1.1
1.1
300
DC14 Control of electromagnet-
ic loads having economy
resistors in circuit
all values
-
-
-
-
-
-
10
1.1
15
10
1.1
15