High-Quality 200A High Voltage Ceramic Insulated Relay – MN19-250
- Rated Current: 250A
- Rated Voltage: 1000VDC / 1500VDC
- Contact Form: SPST-NO (1 Form A)
- Coil Voltage: 12VDC, 24VDC, or 9-36VDC
- Operate Voltage: ≤9VDC (for 12V coil)
- Insulation Resistance: 1000MΩ (1000VDC)
- Operate Time: ≤50ms
- Protection Rating: IP67
Description
The MN19-250 is a high-performance, high-voltage DC relay designed for demanding applications requiring robust and reliable switching capabilities. This 200A High Voltage Ceramic Insulated Relay boasts an impressive rated current of 250A at 85°C, ensuring exceptional continuous load durability. It is engineered to handle load voltages up to 1500VDC, with a maximum switching voltage also rated at 1500VDC, making it a superior choice for high-power circuits.
The relay’s advanced ceramic brazing sealing technology eliminates the risk of arc leakage, providing enhanced safety by preventing fire and explosion hazards. Furthermore, it is filled with inert gas to protect contacts from oxidation, ensuring low and stable contact resistance and achieving an IP67 protection grade. This 200A High Voltage Ceramic Insulated Relay is ideally suited for critical applications in new energy vehicles, energy storage systems, and charging infrastructure, where reliability under high voltage and current is paramount. Its ability to break 10 times the overcurrent and withstand harsh environmental conditions makes it a trusted component in modern electrical systems.
Key Features
- Ceramic brazing sealing technology ensures no arc leakage, fire, or explosion.
- Inert gas filling prevents contact oxidation, offering low and stable contact resistance.
- IP67 protection grade for superior environmental resilience.
- Rated for 250A continuous current at 85°C.
- Capable of breaking 10 times overcurrent under abnormal conditions.
- High insulation resistance: 1000MΩ (1000VDC), complying with IEC60664-1.
- Polarized coil drive with non-polarized load requirements.
- Robust mechanical endurance of 200,000 operations.
- Wide operating voltage range for the coil (9-36VDC options available).

Product Specifications of 200A High Voltage Ceramic Insulated Relay
| Parameter | Value |
|---|---|
| Rated Current | 250A @ 85°C |
| Rated Load Voltage | 1000VDC / 1500VDC |
| Max. Switching Voltage | 1500VDC |
| Contact Resistance | ≤0.3mΩ (DC 150A) |
| Max. Breaking Current | 1000A (1500VDC, 1+ times) |
| Operate Time | ≤50ms |
| Release Time | ≤30ms |
| Insulation Resistance | ≥1000MΩ (1000VDC) |
| Dielectric Strength | 4000VAC 1min (between contacts and coil) |
| Mechanical Life | 200,000 Operations |
| Electrical Life (Resistive) | 250A @ 37.5V, 15,000 cycles; 250A/1500VDC, 100 cycles; 250A/1000VDC, 200 cycles; 250A/750VDC, 500 cycles |
| Weight | 282g |
| Dimensions | 79.5 × 49.7 × 72.6 mm |
| Ambient Temperature | -40℃ ~ +85℃ |
Key Parameters
- Rated Current: 250A
- Rated Voltage: 1000VDC / 1500VDC
- Contact Form: SPST-NO (1 Form A)
- Coil Voltage: 12VDC, 24VDC, or 9-36VDC
- Operate Voltage: ≤9VDC (for 12V coil)
- Insulation Resistance: 1000MΩ (1000VDC)
- Operate Time: ≤50ms
- Protection Rating: IP67
- Terminal Type: Internal Thread, External Thread, QC Terminal options
Application Areas
The MN19-250 200A High Voltage Ceramic Insulated Relay is specifically designed for high-demand applications in modern power systems. Its primary applications include:
- New Energy Vehicles (NEVs): Battery management systems, main power switching, and charging control.
- Energy Storage Systems (ESS): Power conversion and distribution in solar and battery storage units.
- Electric Vehicle Charging Piles: Managing high-power DC charging connections.
- Industrial Power Supplies: High-voltage DC switching in industrial equipment and machinery.
- Renewable Energy Systems: Inverters and converters in solar and wind power installations.
Contact Info
- Phone: +86-0755-28029319
- Email: lingyuanbin@mingni.cn
- Address: 2nd Floor, Building 1, Jingsheng Industrial Zone, 119 Huafan Road, Dalang Subdistrict, Longhua District, Shenzhen.



