This high voltage DC relay contactor connects, carries and breaks the DC current in a system's main power path. It is a component rather than a finished assembly: the unit mounts inside a panel or equipment enclosure, the coil is driven from the control board, and the main contacts sit between the DC source and the load. Panel builders, electric vehicle and charging equipment makers, and storage system integrators specify it when a control-level relay is too small for the current involved. The main contacts accept cable either way round, so one part number covers circuits where the current reverses between charge and discharge.
YongNeng is a relay manufacturer supplying signal relays, latching relays and high-power relays, together with a high-voltage DC contactor line that runs from 16A up to 400A. Because our range covers everything from light switching duty to heavy DC loads, buyers can consolidate several switching positions with one supplier instead of sourcing each rating separately. Power relays are offered in sealed and open construction, and contact wiring is arranged for straightforward installation. Tell us the current rating, switching duty and mounting space your project needs, and we will help you match the right relay or contactor to your build.
| CONTACT DATA | |
| Model |
YV200 |
| Contact Arrangement |
1A |
| Contact Resistance |
<=0.5 mΩ |
| Contact Material | Silver Alloy |
| Contact Rating ( Res.Load ) | 200A |
| Max. Switching Current | 2000A/320VDC |
| Rated load Voltage | 12-1000VDC |
| Max. Switching Power | 640KW |
| Mechanical endurance | 2x105次 OPS |
| Electrical endurance | 1x104次 OPS(200A 450VDC), 3x103次OPS(200A 750VDC), 1x103次OPS(120A 1000VDC) |
| Auxiliary Contact Data | |
|
Max.Current |
2A/30VDC |
|
Min.Current |
100mA/8VDC |
|
Contact Resistance |
<=100mΩ |
| CHARACTERISTICS | |
|
Rated Voltage(VDC) |
12/24/48 |
|
Action Time (ms) |
<=40 |
| Release Time (ms) | <=10 |
| Rebound Time(ms) | <=5 |
| Insulation Resistance | Between Open Contacts:1,000MΩ(1000VDC) Between Coil& Contacts:1,000MΩ(1000VDC) |
| Dielectric Strength | Between Open Contacts : 2,500VAC, 50/60Hz 1 min. |
| Between Coil & Contacts: 2,500VAC, 50/60Hz 1 min | |
| Coil End Lead Out Form | Leading 300mm / customized. |
| Ambient Temperature | -40℃~+85℃ ( No condensation) |
| Unit Weight | without auxiliary contact: Approx. 330g with auxiliary contact: Approx. 380g |
| Impact Stability | 196 m/s2 |
| Impact Strength | 490 m/s2 |
Start with two numbers: the current your circuit carries continuously and the highest current it sees during switching. Size the high current relay to the higher of those two with some margin, then pick the closest rating in the series — the range runs from 30A up to 400A, so lighter DC lines and heavier traction packs both have a match. If the continuous current sits near the top of a rating, step up rather than run the contactor at its limit.
Order it when your controller needs confirmation that the main contacts have actually closed, for example to release a pre-charge sequence or to report contactor state back to a battery management system. The auxiliary contact is a small-signal contact for status feedback and should never be wired to carry load current. If no feedback signal is required, the standard version keeps the build simpler.
No — the contact chamber is sealed, so there are no internal parts to clean or adjust in the field. On an industrial relay installed in a panel, maintenance comes down to checking that the main terminals have stayed tight and that the coil leads are undamaged during scheduled inspections. Contact life is consumed by switching operations, so plan replacement from your duty cycle rather than from a calendar interval.
Only where the circuit switches a DC power line. A standard relay is built for lower-power control and signal switching, while a high voltage DC contactor is designed to connect, carry and break heavier DC loads. If the part that failed was driving coils, lamps or logic inputs, stay with a control relay; if it sat in the main DC path, this class of device is the right replacement.
Give us the system voltage, the continuous current your circuit carries, the highest switching current it can produce, and the coil voltage you plan to use. We check those against the contact rating and the endurance your duty cycle will consume, then confirm the configuration. As a relay manufacturer we build this model on our own production lines, so the confirmed specification stays with the order.
Yes. A high voltage DC relay switches the line, but it is not a substitute for the protection devices your system design specifies. DC interruption behaves differently from AC interruption, so the switching capability of the contactor and the protection devices have to be chosen together as one circuit design.
