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ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor

1. Small and lightweight:Internally adopt reliable sealing technology and filled with nitrogen which arc colling ability is high. It can cut off high voltage DC in a short time.

2. High contact reliability:Due to the contact sealed in the nitrogen, therefore it will be not oxidized, also achieving the contact of the dustproof and waterproof.

3. Safety and reliable:Use the professional explosion-proof structure design,to achieve a high degree of security,adopt magnetic quenching helps to cut-off the DC load quickly.

4. Application:DC charging pile, electric vehicles, hybrid vehicles, battery charging and discharging system,Photovoltaic power generation system such as dc high voltage application.

Specifications
Order mark
Overall dimensions (unit: mm)
Precautions

Contact Data
Contact load(FLA)	50A/450VDC
Contact form	1H
Voltage drop	50mV Max
Limited of current	150A 30s，250A 10s
Max switching current	300A,320VDC(1 Times)
Max switching voltage	900VDC
Max switching power	96kw
Electric endurance	50A/450VDC-10000 Times（Resistive load )
Electric endurance	50A/750VDC-6000 Times（Resistive load）
Mechanical endurance	1*10⁶Times

Performance Parameters
Insulation resistance		100M Ω（500VDC)
Dielectric strength	Coil to contact	2500VAC 1 min
	Across open contact	2500VAC 1 min
Operate time		≤20ms
Release time		≤10ms
Shock resistance functional		196m/s² 20G above
Shock resistance destructive		490m/s² 50G above
Ambient temperature		-40～85℃
Humidity		5～85%RH
Virbration resistance		10-200HZ，49m/s²
Terminal		M4 Internal thread
Unit weight		110g
Package		Epoxy encapsulation

Coil Data
Coil resistance (Ω±10%)@23℃
Nominal coil voltage	Min operating voltage	Max operating voltage	Single coil resistance	Release voltage	Coil power consumption
48V	75%	130%	687Ω	4.8VDC	3.5W
36V	75%	130%	387Ω	3.6VDC	3.5W
24V	75%	130%	170Ω	2VDC	3.5W
12V	75%	130%	38Ω	1.2VDC	3.5W

Referencd Curve

1. When installing the relay, to prevent bad connection, please use the flat washer, spring washer and nut fastening, the external connecting plates need closed to the nearest relay terminal part, ensure good connection. Incorrect connection sequence may can cause severe fever and lead to wires to melt or burn.

2. The relay terminal have polarity difference, please do it correct connection according to the surface + - on the relay. If the connection polarity is reversed, the electrical performance will be greatly decreased.

3. The contact parameters of the ratings are impedance loading values, using inductive and capacitive load case, please take measures to absorb the surge, or it may cause electric life decline, and cut off the defect.

4. Please avoid install near the strong magnetic field ( such as the transformer, the magnetic around) and near the heating element.

5. It is forbidden to put the relay in more than using range temperature （-40℃～85℃） environment for a long time, otherwise easy to cause the plastic parts aging and impact product performance.

6. Please avoid adhesion grease and other things on the terminal, please select a suitable connection wire, otherwise it may lead to the terminal abnormal heat, below data for reference:
- ZXEV03-50A: Nominal cross-section 16mm² above
- ZXEV02-100A: Nominal cross-section 40mm² above
- ZXEV01-150A: Nominal cross-section 50mm² above
- ZXEV01-200A: Nominal cross-section 60mm² above
- ZXEV01-250A: Nominal cross-section 80mm² above
- ZXEV01-300A: Nominal cross-section 100mm² above
7. The screws locking torque control within range of the following rules, if exceed the range, the excessive torque may cause damage.

(1)Terminals installed part of externally threaded
- M5 Nut（ZXEV03-50A）：2Nm～4Nm；
- M6 Nut（ZXEV02-100A、ZXEV01-150A）：3Nm～4Nm；
- M8 Nut（ZXEV01-200A、ZXEV01-250A、ZXEV01-300A）6Nm～8Nm。
(2)The terminals installed part of internally threaded
- M4 Screw：3Nm～4Nm
- M6 Screw：3Nm～4Nm

Product description

Epoxy encapsulation High Voltage DC Contactor with a current capacity of 50A can meet a variety of load requirements and is suitable for various high-voltage DC systems, such as power transmission, electric vehicle charging equipment, photovoltaic power generation, etc. High-voltage DC contactors generate heat during operation. Contactors with higher current capacity usually have better heat dissipation designs, which help to keep the temperature of the equipment within a safe range. ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor uses epoxy potting to effectively prevent water and moisture from intruding into the interior of the high-voltage DC contactor and reduce the risk of failure caused by moisture. Epoxy resin is an environmentally friendly material that does not contain harmful substances and is harmless to the environment and human health. Epoxy resin has good thermal stability and can maintain stable performance in the high-temperature environment generated during the operation of the high-voltage DC contactor.

Zhejiang Zhongxin New Energy Technology Co., Ltd. is well-known China ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor suppliers and custom ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor factory, established in February 2016 after the Haiyan Zhongxin Electronics Co., Ltd.'s stock reform, with a registered capital of 30 million yuan. Is a high-tech enterprise specializing in the research and development, production, sales and service of high-voltage DC relays for new energy, automotive relays, magnetic holding relays, ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor and other products. It has more than 350 skilled employees, more than 50 highly educated technical R & D and management staff, more than 50 kinds of products and 1,000 models, and an annual production capacity of more than 50 million. Products are widely used in high-voltage DC and low-voltage AC and DC applications such as automobiles, DC charging piles, photovoltaic power generation, rail transit, energy measurement, reactive power compensation, energy storage equipment, and household appliances. The company is located at No. 339 Jixing Road, Wanghai Street, Haiyan County, and is located in the central area of Shanghai, Hangzhou, Ningbo, and Suzhou in an hour.

Zhongxin has more than ten years of relay research and development, manufacturing experience. A number of technical talents are experts in the field of relay research and development in China earlier, with strong technical force. They are the standard drafting units for the domestic magnetic latching relay industry, and are national high-tech enterprises undertaken by the National 863 Spark Program. In the production process, the international standards and quality management standards of the custom ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor are fully implemented, and the ISQ9001 and TS16949 management system certifications have been passed. The products have dozens of national patents. our custom ZXEV03-50A Epoxy encapsulation High Voltage DC Contactor products are sold in Europe, the United States, Southeast Asia, South Africa, Brazil and Hong Kong and Taiwan. The main customers of magnetic latching relays are domestic and international well-known manufacturers such as: Hangzhou Juhua, Hangzhou Xili, Hangzhou Haixing, Ningbo Samsung, Beijing Bona, Shenzhen Kelu, Jiangsu Linyang, EDMI, ZIV, etc., the main customers of automotive relays are internationally renowned manufacturers such as: BMW, Mercedes-Benz, TOYOTA, MITSUBISHI, GM, FORD, HONDA, TESLA, etc.