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DC24V Irreversible Electromagnetic Switch Coil (KHK18-DC24V-8.5)

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Volume Discount

MISUMI

Electromagnetic switch for DC 24 V. World's longest switching life.

CE-Compliant
IEC
Screw Mounted
DIN Rail

● The set of electromagnetic contactor and thermal relay is offered at an affordable price.
● This CE Marking compliant product has passed certification testing.
● Terminal cover is standard equipment.
● World's Longest Switching Life EC60947-4-1 (JIS C 8201-4-1, JEM1038)
Electrical life 2.5 million operations (Europe Company A, 2 million operations, Japan Company B 2 million operations)
Mechanical life 25 million operations (Europe Company A, 16 million operations, Japan Company B 10 million operations)
● By removing the front cover, a round terminal (crimped terminal) can also be used.

· Electromagnetic contactor and thermal relay are assembled by the customer.
· A1 coil terminal is (+), and A2 (-).

Part Number

Configured Part Number is shown.

KHK18-DC24V-8.5

Product specification
Part Numbers
Drawing
Standard Specifications

Specifications

DC24V Irreversible Electromagnetic Switch Coil:Related Image

Frame Size (AF)	Coil Voltage	Auxiliary Contact	Motor Capacity (KW)	Thermal Relay Model	Setting Range (A)	Model
Frame Size (AF)	Coil Voltage	Auxiliary Contact	Motor Capacity (KW)	Thermal Relay Model	Setting Range (A)	Model
6	24 VDC	1a	0.05	SMR-12-0.52	0.4 ~ 0.63	KHK6-DC24V-0.52
			0.1	SMR-12-0.82	0.63 ~ 1	KHK6-DC24V-0.82
			0.2	SMR-12-1.3	1 ~ 1.6	KHK6-DC24V-1.3
			0.4	SMR-12-2.1	1.6 ~ 2.5	KHK6-DC24V-2.1
			0.75	SMR-12-3.3	2.5 ~ 4	KHK6-DC24V-3.3
			1	SMR-12-5	4 ~ 6	KHK6-DC24V-5
			1.5	SMR-12-6.5	5 ~ 8	KHK6-DC24V-6.5
			1.5	SMR-12-7.5	6 ~ 9	KHK6-DC24V-7.5
			2.2	SMR-12-8.5	7 ~ 10	KHK6-DC24V-8.5
9		1a1b	0.05	SMR-32-0.52	0.4 ~ 0.63	KHK9-DC24V-0.52
			0.1	SMR-32-0.82	0.63 ~ 1	KHK9-DC24V-0.82
			0.2	SMR-32-1.3	1 ~ 1.6	KHK9-DC24V-1.3
			0.4	SMR-32-2.1	1.6 ~ 2.5	KHK9-DC24V-2.1
			0.75	SMR-32-3.3	2.5 ~ 4	KHK9-DC24V-3.3
			1	SMR-32-5	4 ~ 6	KHK9-DC24V-5
			1.5	SMR-32-6.5	5 ~ 8	KHK9-DC24V-6.5
			1.5	SMR-32-7.5	6 ~ 9	KHK9-DC24V-7.5
			2.2	SMR-32-8.5	7 ~ 10	KHK9-DC24V-8.5
			3.7	SMR-32-11	9 ~ 13	KHK9-DC24V-11
			3.7	SMR-32-15	12 ~ 18	KHK9-DC24V-15
			5.5	SMR-32-19	16 ~ 22	KHK9-DC24V-19
			5.5	SMR-32-21.5	18 ~ 25	KHK9-DC24V-21.5
			7.5	SMR-32-27	22 ~ 32	KHK9-DC24V-27
13		1a1b	0.05	SMR-32-0.52	0.4 ~ 0.63	KHK12-DC24V-0.52
			0.1	SMR-32-0.82	0.63 ~ 1	KHK12-DC24V-0.82
			0.2	SMR-32-1.3	1 ~ 1.6	KHK12-DC24V-1.3
			0.4	SMR-32-2.1	1.6 ~ 2.5	KHK12-DC24V-2.1
			0.75	SMR-32-3.3	2.5 ~ 4	KHK12-DC24V-3.3
			1	SMR-32-5	4 ~ 6	KHK12-DC24V-5
			1.5	SMR-32-6.5	5 ~ 8	KHK12-DC24V-6.5
			1.5	SMR-32-7.5	6 ~ 9	KHK12-DC24V-7.5
			2.2	SMR-32-8.5	7 ~ 10	KHK12-DC24V-8.5
			3.7	SMR-32-11	9 ~ 13	KHK12-DC24V-11
			3.7	SMR-32-15	12 ~ 18	KHK12-DC24V-15
			5.5	SMR-32-19	16 ~ 22	KHK12-DC24V-19
			5.5	SMR-32-21.5	18 ~ 25	KHK12-DC24V-21.5
			7.5	SMR-32-27	22 ~ 32	KHK12-DC24V-27
18		1a1b	0.05	SMR-32-0.52	0.4 ~ 0.63	KHK18-DC24V-0.52
			0.1	SMR-32-0.82	0.63 ~ 1	KHK18-DC24V-0.82
			0.2	SMR-32-1.3	1 ~ 1.6	KHK18-DC24V-1.3
			0.4	SMR-32-2.1	1.6 ~ 2.5	KHK18-DC24V-2.1
			0.75	SMR-32-3.3	2.5 ~ 4	KHK18-DC24V-3.3
			1	SMR-32-5	4 ~ 6	KHK18-DC24V-5
			1.5	SMR-32-6.5	5 ~ 8	KHK18-DC24V-6.5
			1.5	SMR-32-7.5	6 ~ 9	KHK18-DC24V-7.5
			2.2	SMR-32-8.5	7 ~ 10	KHK18-DC24V-8.5
			3.7	SMR-32-11	9 ~ 13	KHK18-DC24V-11
			3.7	SMR-32-15	12 ~ 18	KHK18-DC24V-15
			5.5	SMR-32-19	16 ~ 22	KHK18-DC24V-19
			5.5	SMR-32-21.5	18 ~ 25	KHK18-DC24V-21.5
			7.5	SMR-32-27	22 ~ 32	KHK18-DC24V-27
22		1a1b	0.05	SMR-32-0.52	0.4 ~ 0.63	KHK22-DC24V-0.52
			0.1	SMR-32-0.82	0.63 ~ 1	KHK22-DC24V-0.82
			0.2	SMR-32-1.3	1 ~ 1.6	KHK22-DC24V-1.3
			0.4	SMR-32-2.1	1.6 ~ 2.5	KHK22-DC24V-2.1
			0.75	SMR-32-3.3	2.5 ~ 4	KHK22-DC24V-3.3
			1	SMR-32-5	4 ~ 6	KHK22-DC24V-5
			1.5	SMR-32-6.5	5 ~ 8	KHK22-DC24V-6.5
			1.5	SMR-32-7.5	6 ~ 9	KHK22-DC24V-7.5
			2.2	SMR-32-8.5	7 ~ 10	KHK22-DC24V-8.5
			3.7	SMR-32-11	9 ~ 13	KHK22-DC24V-11
			3.7	SMR-32-15	12 ~ 18	KHK22-DC24V-15
			5.5	SMR-32-19	16 ~ 22	KHK22-DC24V-19
			5.5	SMR-32-21.5	18 ~ 25	KHK22-DC24V-21.5
	7.5		SMR-32-27	22 ~ 32	KHK22-DC24V-27

	Rated Voltage	Rated Current
Auxiliary Contact Capacity	AC120V	6A
	AC240V	3A
	AC380V	1.9A
	AC480V	1.5A
	AC500V	1.4A
	AC600V	1.2A
	DC125V	1.1A
	DC250V	0.55A
	DC400V	0.31A
	DC500V	0.27A
	DC600V	0.2A

24 VDC Electromagnetic Switch Specifications

Model		KHK6	KHK9
			KHK12
			KHK18
			KHK22
Operation Voltage		24V
Clamping Voltage	Pickup	70 ~ 110%
	Dropout	10 ~ 30%
Coil Power Consumption	Inrush Current (VA)	9	9
24 VDC	Rated Power (VA)	9	9
Coil Current	(A)	0.4	0.4
Operating Time	Closed (ms)	35...50	35...50
	Open (ms)	4...19	4...19

● Standard Usage Conditions

Ambient Temperature	Reference 20°C, -10°C ~ 40°C
Ambient Temperature	(Maximum 35°C daily average air temperature, maximum 25°C annual average air temperature)
Maximum Board Internal Temperature	55°C
Maximum Board Internal Temperature	Take care, as operational characteristics of electromagnetic contacts and thermal relays can be affected by the ambient temperature.
Relative Humidity	45 ~ 85% RH, no condensation or freezing.
Altitude	2,000 m or lower
Vibration	10 ~ 55 Hz 19.6 m / s² or lower
Impact	49 m / s² or lower
Atmosphere	Excessive amount of dust, smoke, corrosive gases, flammable gas, moisture, or salt must not be present. Extended use in sealed conditions may lead to possible contact defects.

More Information

DC24V Irreversible Electromagnetic Switch Coil:Related Image

: 30; 45; 60

Part Number
KHK18-DC24V-8.5

Part Number	Minimum order quantity	Volume Discount	Days to Ship	Motor capacity AC 200 to 220-V class (kW/A)	Auxiliary contact	Dimension length (mm)	Dimension thickness (mm)	Motor Capacity 200 VAC (kW/A)	Setting Range (A)	Rated Current (A)
	1 Piece(s)	Available	8 Days or more	2.2	1a1b	129.9	117.7	2.2	7 ~ 10	18

Drawing

DC24V Irreversible Electromagnetic Switch Coil:Related Image

Electromagnetic Switch

● KHK Type
Misumi Original Electromagnetic Switches

Frame Size	18AF	22AF				40AF	65AF
Model	KHK6	KHK9	KHK12	KHK18	KHK22	KHK32	KHK50	KHK65
Number of Phases	3	3				3	3
Rated Voltage	690 V	690 V				690 V	690 V
Rated Insulation Voltage	690 V	690 V				1,000 V	1,000 V
Rated Frequency	50 / 60 Hz	50 / 60 Hz				50 / 60 Hz	50 / 60 Hz
Rated Impulse Voltage	6 KV	6 KV				8 KV	8 KV
Switching Frequency (times / hour), AC Class 3	1,800	1,800				1,800	1,800
Mechanical Life (10,000 times)	1,500	1,500				1,200	1,200
Electrical Life (10,000 times)	250	250				200	200
AC - Class 1 A	25	25	25	32	40	50	70	100
AC - Class 3 200 / 240 V KW	2.2	2.5	3.5	4.5	5.5	7.5	15	18.5
A	9	11	13	18	22	32	55	65
380 / 440 V KW	3	4	5.5	7.5	11	15	22	30
A	7	9	12	18	22	32	50	65
500 / 550 V KW	3	4	7.5	7.5	15	18.5	30	33
A	6	7	12	13	20	28	43	60
690 V KW	3	4	7.5	7.5	15	18.5	30	33
A	4	6	9	9	18	20	28	35
UL Rated, Continuous Current, A	25	25	25	40	40	50	70	100
Single Phase 110 ~ 120 V	0.5	0.5	0.75	1	2	2	3	5
220 ~ 240 V	1.5	1.5	2	3	3	5	10	15
Three Phase 200 ~ 208 V	2	2	3	5	7.5	7.5	20	25
220 ~ 240 V	3	3	5	7.5	10	10	25	30
440 ~ 480 V	5	5	7.5	10	15	20	40	50
550 ~ 600 V	7.5	7.5	10	15	20	25	50	60
Coil Voltage AC Weight Kg	0.43	0.54				0.72	1.36	1.38
Coil Voltage DC Weight, Kg	0.6	0.68				0.94	1.61	1.63

● Standard Operating Conditions

Ambient Temperature	Standard temperature at 20°C, -10°C ~ 40°C
Ambient Temperature	(Maximum Daily Average Ambient Temperature 35°C, Maximum Annual Average Ambient Temperature 25°C)
Maximum Internal Panel Temperature	55°C
Maximum Internal Panel Temperature	Note that the operating properties of the electromagnetic connector and thermal relay are influenced by ambient temperature.
Relative Humidity	45 ~ 85% RH, no condensation or freezing.
Altitude	2,000 m or lower
Vibration	10 ~ 55 Hz 19.6 m/s2 or lower
Impact	49 m/s2 or lower
Ambient Atmosphere	The ambient atmosphere must not contain excessive dust, smoke, corrosive or combustible gas, moisture, or salt content. Further, prolonged operation while sealed may cause problems such as contact failure.

Basic Information

Operating method	Non-reversible Model	Coil rated voltage(V)	DC24	Number of electrodes	3
Representative standards	CE	Dimension width(mm)	45	Other Standards (IEC)	○
Other Standards (KEMA)	○

Please check the type/dimensions/specifications of the part KHK18-DC24V-8.5 in the DC24V Irreversible Electromagnetic Switch Coil series.

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Specification/Dimensions

Motor capacity AC 200 to 220-V class(kW/A)
0.05

0.1

0.2

0.4

0.75

1

1.5

2.2

3.7

5.5

7.5
Clear
Auxiliary contact
- 1a
- 1a1b
Clear
Dimension length(mm)
124

129.9
Clear
Dimension thickness(mm)
110.7

117.7
Clear
Motor Capacity 200 VAC(kW/A)
0.05

0.1

0.2

0.4

0.75

1

1.5

2.2

3.7

5.5

7.5
Clear
Setting Range(A)
0.4 ~ 0.63

0.63 ~ 1

1 ~ 1.6

1.6 ~ 2.5

2.5 ~ 4

4 ~ 6

5 ~ 8

6 ~ 9

7 ~ 10

9 ~ 13

12 ~ 18

16 ~ 22

18 ~ 25

22 ~ 32
Clear
Rated Current(A)
- 6
- 9
- 12
- 18
- 22
Clear

Days to Ship

All

8 Days or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

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KHK22-DC24V-0.82
KHK22-DC24V-1.3
KHK22-DC24V-11

Minimum order quantity	Volume Discount	Days to Ship	Motor capacity AC 200 to 220-V class (kW/A)	Auxiliary contact	Dimension length (mm)	Dimension thickness (mm)	Motor Capacity 200 VAC (kW/A)	Setting Range (A)	Rated Current (A)
1 Piece(s)	Available	8 Days or more	3.7	1a1b	129.9	117.7	3.7	12 ~ 18	12
1 Piece(s)	Available	8 Days or more	5.5	1a1b	129.9	117.7	5.5	16 ~ 22	12
1 Piece(s)	Available	8 Days or more	0.4	1a1b	129.9	117.7	0.4	1.6 ~ 2.5	12
1 Piece(s)	Available	8 Days or more	0.1	1a1b	129.9	117.7	0.1	0.63 ~ 1	22
1 Piece(s)	Available	8 Days or more	0.2	1a1b	129.9	117.7	0.2	1 ~ 1.6	22
1 Piece(s)	Available	8 Days or more	3.7	1a1b	129.9	117.7	3.7	9 ~ 13	22