ADH30 Motor Contactor

A motor contactor is an essential component in electrical circuits that control the operation of motors. It is an electromagnetic switch used to connect or disconnect the power supply to a motor.

Features

1, high-strength epoxy resin sealing, no risk of arc leakage, ensuring no fire or explosion during life;
2, potting nitrogen-based gas, effectively preventing contact oxidation and burning, low and stable contact resistance, contact part can meet IP67 protection level;
3, 30A 25 ℃ long-term current carrying capacity;
4, insulation resistance up to 100MΩ(1000VDC), withstand voltage between contact and coil 3.5kV;
5, in line with IEC 60664-1,GB/T14048.1 and GB/T14048.4 requirements;
6, in line with RoHs(2002/95/EC) requirements;
7, safety certification: CE;

Application

30A-600A,12-1500VDC, the main contact form has a group of normally open, two groups of normally open, a group of normally closed and two groups of normally closed, with auxiliary contacts, IP67 waterproof grade, low heat, low power consumption, high life. Applied to new energy vehicles, DC charging pile, charger, PDU high voltage control box, ESS energy storage, battery pack field;

Keyword： ADH30 Motor Contactor

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Product Details

For a long time, the company has won extensive trust and support from customers with its ever-increasing innovation capabilities, stable quality assurance capabilities, professional customization capabilities, timely delivery capabilities and high-quality after-sales service system. Volkswagen, Komatsu, Dongfeng, GOODWINCH, TMAX and other major companies have formed close strategic partnerships.The company has strong research and development capabilities, precise production equipment, advanced production technology, sophisticated testing equipment and a million-level purification workshop. There are more than 20 series of products with a total of more than 1000 specifications, such as high and low voltage DC contactors, power switches, connectors, etc, it is widely used by customers in new energy electric vehicles and supporting charging stations and charging piles, photovoltaic and wind power generation systems, energy storage power stations, battery packs, electric forklifts, electric winches, battery cars, electric locomotives, UPS, medical equipment, communication power supplies, Inverter, power backup and other fields, and are exported to Asia, Europe and America.Today, all Okai people are refreshed and enterprising! Facing the market and customers, we have only one promise: Okay, let the electricity be in control!

A motor contactor is an essential component in electrical circuits that control the operation of motors. It is an electromagnetic switch used to connect or disconnect the power supply to a motor. Here are three key points about motor contactors:

1. Purpose: Motor contactors are primarily used to control the operation of electric motors. They provide a safe and reliable method for starting, stopping, and reversing the motors. By isolating the motor from the power source, contactors protect the circuit from potential overload or short-circuit conditions.

2. Construction: Motor contactors are typically made up of three main components - a coil, contacts, and an enclosure. The coil is energized by a low-voltage control circuit, which generates a magnetic field that attracts or releases the contacts. The contacts, usually made of high-quality conductive materials, carry the main current flowing to the motor. The enclosure provides protection against dust, moisture, and accidental contact.

3. Operation: When the coil of a motor contactor is energized, it creates a magnetic field that pulls the contacts together, closing the circuit and allowing current to flow to the motor. This activates the motor and brings it to full speed. When the coil is de-energized, the magnetic field collapses, and the contacts open, interrupting the power supply to the motor and stopping its operation.

Motor contactors are widely used in various industries, including manufacturing, automation, HVAC systems, and agriculture. They contribute to the safe and efficient control of electric motors, ensuring reliable operation and protection against electrical faults.

Main Load Contact Parameter
Contact Form	1K(1NO)
Contact Polarity	Non-Polarity
Contact Resistance	≤ 0.5mQ (at 300A)
Maximum switching voltage	900VDC
Maximum breaking current	240A(320VDC)1 time
Electrical durability a	1000 times (900VDC,30A)
	3000 times (750VDC,30A)
	9000 times (450VDC,30A)
Mechanical durability	300000 times
Electrical durability B	30A, continuous
	45A,60min
	60A,5min
	120A,30S

performance parameters (at23 c)
pull-in voltage		≤ 70% Us
release voltage		<40% Us,>5% Us
pull-in time		≤ 25ms
contact bounce time		≤ 5ms
release time		≤ 10ms
dielectric withstand voltage	main contact	3500VDC 1min
	Between Main Contact and Coil	3500VDC 1min
Insulation Resistance	Initial State	100 MΩ 1min c
	Electrical Life	50MΩ 1min
Impact	stability	20g (energization)
	strength	50g
vibration		10g,10 to 500Hz,1/2 Sine Wave (Power on)
Humidity		5% ~ 95% RH
Temperature		-40 C ~ 85 C
Load End Lead End Type		M4 Internal Thread
Weight		About 100g
Dimensions		51. 7mm * 36mm * 46mm

Auxiliary Contact Parameters
Auxiliary Contact Form	/
Auxiliary Contact Rated Current	/
Auxiliary Contact Maximum Breaking Voltage	/

ADH30S coil parameter
coil voltage	pull-in voltage	release voltage	coil resistance	coil power consumption
12V	≤ 70% Us	5%-40% Us	36Ω 5%	4W 10%
24V	≤ 70% Us	5%-40% Us	144 Ω 5%	4W 10%
36V	≤ 70% Us	5%-40% Us	324Ω 5%	4W 10%
48V	≤ 70% Us	5%-40% Us	576 Ω 5%	4W 10%
60V	≤ 70% Us	5%-40% Us	900 Ω 5%	4W 10%
72V	≤ 70% Us	5%-40% Us	1296Ω 5%	4W 10%

Model Description

Outline Installation Dimension Diagram

Wiring Schematic Diagram

Precautions for Use

1. This information is only for customer selection reference, OKAY has made every effort to ensure the accuracy of the information in this material. Product specifications and parameters may be changed due to product improvement, etc., and are not updated in time, resulting in inconsistent specifications and parameters. The specific parameters and performance of each product shall be subject to the samples provided by Okai and the corresponding signed and controlled acknowledgement.

2. Regarding the application of this product, when selecting products, customers choose products that match them according to their specific use conditions and environmental requirements. For the unspecified requirements, please contact Aokai for more technical support.

3. When installing and using this product, regardless of wiring or fixed installation, it is required to use an anti-loose mat.

4. The torque for installing fasteners should be within the standard range required by this specification. The torque is lower than the minimum torque or exceeds the torque **value, which may cause unstable installation or damage to the product.

5. Avoid installing this contactor in a place with a strong magnetic field (such as a transformer or a strong magnet) or close to an object with thermal radiation. It is recommended to install a cooling fan.

6. It is forbidden to use products that have fallen from high places (height ≥ 30cm).

7. It is forbidden to use the product in an environment with oil pollution, especially before wiring, the oil pollution of the main terminal will seriously affect the conductivity and affect the product life.

8. It is forbidden to use the product beyond the rated electrical life. Although the product can continue to work when the rated electrical life is reached, there is a risk of failure, explosion and burning caused by continuous opening.

9. This product cannot be used as a protector, and the line must be connected in series with the protector when used.

10. Okay only does resistive life verification and quality assurance. When the product is used in an environment with inductive load or capacitive load, it is recommended that the circuit be connected in parallel with the surge protection device.

11. After continuous work, restart immediately after disconnection, which will affect the suction voltage due to the heating state of the product, and it is reasonable that the suction voltage will increase.

12. Live wiring is strictly prohibited.