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Industrial Automation

Industrial Automation

J7KC Series

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

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 6 1
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 4 1.5 1 0.3
Number of serial contacts 2 10 3 2 0.8
Number of serial contacts 3 12 6 5 1.5
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 6 1
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 4 1.5 1 0.3
Number of serial contacts 2 10 3 2 0.8
Number of serial contacts 3 12 6 5 1.5
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 mΩ 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 mΩ 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.