Dongguan Ampfort Electronics Co., Ltd.
Smart Circuit Protection Experts Around You
Add to Cart
SEV SEVI Polarity Nonpolarity High Voltage DC Contactor 10A 20A 30A 50A 100A 150A 200A 250A 300A For Electric Vehicle
Product Features
1.Full seal construction and high safety
2.Coil voltage:12VDC and 24VDC
3.Small size and high switching power
4. Full sealed inside by epoxy encapsulation technology to insure coil and contactor against being oxidized for long time
5.Use permanent magnet to eliminate electrica arc,high reliability
6. Implementation criteria:GB/T 14048.4-2010
7. Certification: CCC number 2019010304167727
Application
Mainly used in high voltage main circuit,pre-charge circuit,slow charging circuit,fast charging circuit,high voltage auxiliary system of electromobile,as well as high voltage main circuit system in charging pile,power control system of wind power,photovoltaic
Outline And Dimensions
Coil Operating Voltage
| Item | Norminal Voltage | 12VDC | 24VDC |
| 1 | Max. Voltage | 16VDC | 28VDC |
| 2 | Max Pickup(close) Voltage | 9VDC | 18VDC |
| 3 | Min Dropout(open) Voltage | 1.0VDC | 2.0VDC |
| 4 | Coil Current | 267mA | 133mA |
| 5 | Coil Power(20℃) | 3.5W | 3.5W |
| 6 | Coil Resistance(20℃) ±5% Ohm | 45 | 180 |
Peformance Parameter
| Type | Parameters | Unit | Values |
| Main contactor | Contact Arrangement,Main Contacts | / | 1 Form X(SPST NO DM) |
| Rated Operating Voltage | VDC | 12-1000 | |
| Overcurrent | A | 20A 180S/30A 120S | |
| Break Current at 320VDC | A | 100,1 Cycle | |
| Contact Resistance, Typ.(@10A) | mOhm | ≤5 | |
| Dielectric Withstanding Voltage | VAC | 2500,(5mA,60s) | |
| Insulation Resistor @1000VDC | MOhm | ≥100 | |
| Life | Load life 10A/450V | Cycle | 7*104 |
| Load life 10A/750V | 2*103 | ||
| Load life 10A/1000V | 103 | ||
| Mechanical Life | Cycle | 2*106 | |
| Pick up/Release | Close(includes bounce),Typ. | ms | ≤20 |
| Release(includes arcing),Max | ms | ≤5 | |
| Environment | Shock,11ms,1/2 Sine,Peak,operating | G | 50 |
| Vibration,Sine,80-2000Hz,Peak | G | 20 | |
| Operating Ambient Temperature | ℃ | -40 ~ +85 | |
| Weight,Norminal | g | ≤105 |
Product life estimated(Make/Break):
Product life estimated(Make/Break) curve under resistive load
Continuous current range
Use Precautions Of High Voltage DC Contactors
1. Contacts with the polarity of contactor,please operate according to the product identification promp.
2. Do not use fallen products.
3.Avoid installing products in strong magnetic fields(near transformers or magnets) or near objects with thermal radiation.
4. The product with energy saver has a reverse surge absorber circuit,so there is no need to use surge protector.
5.About 0.1 seconds after the product with energy saving board is connected to the power supply,the circuit starts to switch automatically.Do not turn off repeatedly at the same position,otherwise the contactor energy saving board may be damaged.
6. About the load life: This contactor is a high voltage DC switch,please do not exceed its switching ability and life parameters in the state of use,otherwise may lose the ability to cut off.Please replace if necessary.
7. If the coil and contacts of the contactor are continuously connected to the rated voltage(or current),the power supply is cut off and then switched on immediately,then the resistance of the coil will increase as the temperature of the coil increases,thus increasing the pick-up voltage of the product and possibly leading to excess of the rated suction voltage.In this case,the follwing measures should be taken: such as reducing the load current,limiting the duration of power on or using coil voltage higher than the rated pick-up voltage.
7. If the coil and contacts of the contactor are continuously connected to the rated voltage(or current),the power supply is cut off and then switched on immediately,then the resistance of the coil will increase as the temperature of the coil increases,thus increasing the pick-up voltage of the product and possibly leading to excess of the rated suction voltage.In this case,the follwing measures should be taken: such as reducing the load current,limiting the duration of power on or using coil voltage higher than the rated pick-up voltage.