Magnetic Contactor

J7KC Series

Best Match for upto 2.2 kW (240 VAC) *, 5.5 kW (440 VAC) Motor and Primary Side switches * Based on JIS C 8201-4-1

last update: April 1, 2022
The ratings/specifications are the same for both non-reversing/reversing types.
Coil rating
AC operated
Displayed
model
Rated voltage
Allowable voltage range
Must operate
voltage
Must release
voltage
50 Hz
60 Hz
 
50 Hz
60 Hz
AC 24
24 VAC
24-26 VAC
85 to 110%
21-27 VAC
21-29 VAC
85% max.
20% min.
AC 48
48 VAC
48-52 VAC
41-53 VAC
41-58 VAC
AC 100
100 VAC
100-110 VAC
85-110 VAC
85-121 VAC
AC 110
100-110 VAC
110-120 VAC
85-121 VAC
94-132 VAC
AC 120
110-120 VAC
120-130 VAC
94-132 VAC
102-143 VAC
AC 200
200 VAC
200-220 VAC
170-220 VAC
170-242 VAC
AC 220
200-220 VAC
220-240 VAC
170-242 VAC
187-264 VAC
AC 230
220-230 VAC
230 VAC
187-253 VAC
196-253 VAC
AC 240
220-240 VAC
240-260 VAC
187-264 VAC
204-286 VAC
AC 380
346-380 VAC
380-420 VAC
295-418 VAC
323-462 VAC
AC 400
380-400 VAC
400-440 VAC
323-440 VAC
340-484 VAC
AC 440
415-440 VAC
440-480 VAC
353-484 VAC
374-528 VAC
AC 500
480-500 VAC
500-550 VAC
408-550 VAC
425-605 VAC
DC operated
Displayed
model
Rated voltage
Allowable voltage range
Must operate
voltage
Must release
voltage
DC 12
12 VDC
85 to 110%
11-14 VDC
85% max.
10% min.
DC 24
24 VDC
21-27 VDC
DC 48
48 VDC
41-53 VDC
DC 60
60 VDC
51-66 VDC
DC 100
100 VDC
85-110 VDC
DC 110
110 VDC
94-121 VDC
DC 120
120 VDC
102-132 VDC
DC 200
200 VDC
170-220 VDC
DC 210
210 VDC
179-231 VDC
DC 220
220 VDC
187-242 VDC
Coil characteristics (reference value)
AC operated
Frequency
50 Hz
60 Hz
Coil power
consumption
Making (VA)
22 (200 V)
25 (220 V)
Holding (VA)
4.5 (200 V)
4.5 (220 V)
Power loss (W)
1.2 (200 V)
1.3 (220 V)
Must operate voltage (V)
122 to 135
128 to 138
Must release voltage (V)
80 to 89
83 to 96
Operate time (ms)
17 to 26
Release time (ms)
6 to 16
Note:
1. Coil ratings: Characteristics for 200 VAC, 50 Hz / 200-220 VAC, 60 Hz

2. Coil power consumption value is the same for a coil that is not rated 200 VAC.

3. Indicated operate/release times for 200 VAC, 50 Hz.

4. Closed and open voltages of 100 V coil (100 VAC, 50 Hz/100-110 VAC, 60 Hz) are approximately one half the values in the table above.

5. Values in the table above are examples for 20°C cold condition.
DC operated
Coil power
consumption
Making (W)
2.4 (24 V)
Holding (W)
2.2 (24 V)
Time constant (ms)
Holding
20
Must operate voltage (V)
10 to 11
Must release voltage (V)
4 to 6
Operate time (ms)
34 to 60
Release time (ms)
5 to 10
Note:
1. Coil ratings: Characteristics for 24 VDC

2. Coil power consumption value is the same for a coil that is not rated 24 VDC.

3. Values in the table above are examples for 20°C cold condition.
Ratings/Characteristics
Main
circuit

rating
Rating based on
IEC 60947-4-1
AC-1
(Resistive load)
Voltage range (V)
AC200-240 AC
AC380-440 AC
Rated operational current (A)
15
15
AC-3
(3-phase cage

motor)
Voltage range (V)
200-240 AC
380-440 AC
500-550 AC
600-690 AC
Rated capacity (kW)
3
5.5
5.5
4
Rated operational current (A)
12
12
9
5
AC-4
(3-phase cage

motor)
Voltage range (V)
200-240 AC
380-440 AC
500-550 AC
600-690 AC
Rated capacity (kW)
3
5.5
5.5
4
Rated operational current (A)
12
12
9
5
DC-1
(Resistive load

L/R ≤ 1 ms)
Voltage range (V)
24 DC
48 DC
110 DC
220 DC
Rated
operational

current (A)
Number of serial contacts 1
12
12
3
0.7
Number of serial contacts 2
12
12
9
4
Number of serial contacts 3
12
12
12
12
DC-3, DC-5
(DC motor load

L/R ≤ 15
ms)
Voltage range (V)
24 DC
48 DC
110 DC
220 DC
Rated
operational

current (A)
Number of serial contacts 1
2
1.5
1
0.1
Number of serial contacts 2
10
3
0.85
0.35
Number of serial contacts 3
12
6
1.7
0.7
Conventional free air thermal current
(rated flowing current) (A)
15
Rating based on
UL 60947-4-1,

CSA C22.2
3-phase motor
Voltage range (V)
200 AC
220-240 AC
440-480 AC
550-600 AC
Rated capacity (HP)
3
3
5
5
Rated operational current (A)
11
9.6
7.6
6.1
Rated current (A)
15
Single-phase
motor
Voltage range (V)
110-120 AC
200 AC
220-240 AC
Rated capacity (HP)
3/4
1-1/2
2
Rated operational current (A)
13.8
11.5
12
Rated current (A)
15
FUSE
30A (Class K5, RK5)
Rating based on
JIS C 8201-4-1
AC-1
(resistive load)
Voltage range (V)
200-240 AC
380-440 AC
Rated operational current (A)
15
15
AC-3
(3-phase cage

motor)
Voltage range (V)
200-240 AC
380-440 AC
500-550 AC
Rated capacity (kW)
2.2
5.5
5.5
Rated operational current (A)
12
12
9
DC-1
(Resistive load

L/R ≤ 1 ms)
Voltage range (V)
24 DC
48 DC
110 DC
220 DC
Rated
operational

current (A)
Number of serial contacts 1
12
12
3
0.7
Number of serial contacts 2
12
12
9
4
Number of serial contacts 3
12
12
12
12
DC-3, DC-5
(DC motor load

L/R ≤ 15 ms)
Voltage range (V)
24 DC
48 DC
110 DC
220 DC
Rated
operational

current (A)
Number of serial contacts 1
2
1.5
1
0.1
Number of serial contacts 2
10
3
0.85
0.35
Number of serial contacts 3
12
6
1.7
0.7
Conventional free air thermal current
(rated flowing current) (A)
15
Minimum operate voltage/current (reference value)
24 VDC 10 mA
Electrical/
mechanical

endurance
Voltage range (V)
220 AC
440 AC
Rated operational current (A)
12
12
Contact closed current (A)
144
144
Breaking current (A)
120
120
Switching frequency (times per hour)
1800
1800
Endurance
(10,000 operations min.)
Mechanical
1000
1000
Electrical (AC3)
100 *1
Contact resistance (reference value)
10 max. (6 VDC, 1 mA, voltage drop method)
Auxiliary
circuit

rating
Rating based on
IEC 60947-5-1/

JIS C 8201-5-1
Voltage range (V)
100-120
AC
200-240
AC
380-440
AC
500-600
AC
24 DC
48 DC
110 DC
220 DC
Rated operational current (A)
AC-15 (coil load)
DC-13 (coil load)
3
3
1
0.5
2
1
0.3
0.2
AC-12 (resistive load)
DC-12 (resistive load)
6
6
6
3
3
2
1.5
0.5
Contact closed and breaking current (A)
30
30
10
5
30
30
10
5
Conventional free air thermal current
(rated flowing current) (A)
10
Rating based on
UL 508
Rated carry current (A)
10
2.5
Voltage range (V)
120 AC
240 AC
480 AC
600 AC
125 DC
250 DC
Contact closed current (A)
60
30
15
12
0.55
0.27
Breaking current (A)
6
3
1.5
1.2
0.55
0.27
Rating code
A 600
Q 300
Minimum operate voltage/current (reference value)
3 mA at 5 VDC
Electrical/
mechanical

endurance
Switching frequency (times per hour)
1800
Mechanical (10,000 cycles min.)
1000
Electrical
(10,000

cycles
min.)
AC-15
220 V
50
440 V
50
AC-12
220 V
25
440 V
25
DC-13
220 V
15
DC-12
220 V
50
Contact resistance (reference value)
50 max. (6 VDC, 1 mA, voltage drop method)
Rated insulation voltage
690 VAC
Rated impulse dielectric strength
6 kV
Rated frequency
50/60 Hz
Vibration resistance
Vibration: 10 to 55 Hz, acceleration: 15 m/s2
Shock resistance
Shock value 50 m/s2
Contact form
Double break form (main circuit: single contacts, auxiliary circuit: bifurcated contacts)
Contact material
Ag alloy
Mirror contact
Available *2
Degree of protection
IP20 (IEC60529)
Operating temperature
-10 to +55°C (however, daily average shall not exceed 35°C)
Ambient storage temperature
-40 to +65°C (no condensation or icing)
Relative humidity
45% to 85% RH (no condensation or icing)
Altitude
2000 m max.
Weight
160 g (J7KC-[]-AC)/190 g (J7KC-[]-DC)/400 g (J7KCR-[]-AC)/460 g (J7KCR-[]-DC)
Applicable Standards
Safety standard
EN 60947-4-1(IEC 60947-4-1), UL 60947-4-1, CSA 22.2 No.60947-4-1,
CCC GB/T14048.4, UKCA
*1. The electrical endurance is the value at 200 V based on the electrical endurance test conditions assumed in the IEC/JIS standards, and will vary depending on the characteristics and load conditions of the motor you use. A large motor starting current may cause a decrease of electrical endurance or contact sticking.
*2. A mirror contact is a mechanism found mainly in contactors.
With the combination of the main circuit and the auxiliary circuit of the main unit, welding the main contacts will result in a structure that secures a shock resistance voltage of 2.5 kV or more, or a contact interval of 0.5 mm or more, for all of the auxiliary circuit NC contacts even if the excitation of the coil is released. The main contact may turn on even if the auxiliary circuit is welded. Even with the combined usage of the auxiliary contact unit (J73KC-AM), welding the main contact in the main unit will create a mirror contact surface where the attached auxiliary contact (NC contact) is separated.
Options (Order Separately)
Auxiliary contact unit
J73KC
Conventional
free air thermal

current

(rated flowing

current)

[A]
Contact
closed and

Breaking

current

[A]
AC
DC
Minimum
operate

voltage/

current
Operating
voltage

[V]
Rated operational
current (A)
Operating
voltage

[V]
Rated operational
current (A)
Coil load
(AC-15)
Resistive
load

(AC-12)
Coil load
(DC-13)
Resistive
load

(DC-12)
10
30
100 to 120 AC
3
6
24 DC
2
3
5 VDC,
3
mA
30
200 to 240 AC
3
6
48 DC
1
2
10
380 to 440 AC
1
6
110 DC
0.3
1.5
5
500 to 600 AC
0.5
3
220 DC
0.2
0.5
Coil surge absorption unit
Model
Surge
absorber
Varistor
voltage
LED
indicator
Applicable model
Control circuit voltage
AC operated
DC operated
AC
DC
J76KC-RC-1
Varistor
100 V
---
J7KC-[]-AC
---
24-48 VAC
Not
required

*
J76KC-RC-2
240 V
48-125 VAC
J76KC-RC-3
470 V
100-250 VAC
J76KC-RC-N-1
100 V
LED (red)
24-48 VAC
J76KC-RC-N-2
240 V
48-125 VAC
* The DC operated (J7KC-[]-DC) has a varistor built into the main unit.