300A High Voltage Ceramic Contactor
Model:
MN19-300
Category: High-voltage Relay, products
- Rated Current: 300A
- Rated Voltage: 1000VDC / 1500VDC
- Contact Form: 1A (SPST-NO)
- Operate Time: ≤50ms
- Release Time: ≤30ms
- Insulation Resistance: ≥1000MΩ (1000VDC)
- Mechanical Life: 200,000 operations
- Coil Voltage: 12VDC, 24VDC, or 9-36VDC
- Protection Level: IP67
Description
Product Features
- Ceramic brazing sealing technology ensures no arc leakage, eliminating risks of fire and explosion.
- Inert gas filling prevents contact oxidation, ensuring low and stable contact resistance.
- High protection level of IP67 for reliable operation in harsh environments.
- Rated for 300A continuous current at 85°C, with a maximum switching voltage of 1500VDC.
- Capable of breaking 10 times overcurrent, suitable for abnormal condition handling.
- High insulation resistance up to 1000MΩ (1000VDC), meeting IEC60664-1 requirements.
- Polarized coil drive with non-polarized load terminals for design flexibility.
- Robust mechanical endurance of 200,000 operations and high electrical life.
- Compact and durable design with multiple terminal options for easy integration.

Product Specifications of 300A High Voltage Ceramic Contactor
| Parameter | Value |
|---|---|
| Rated Current | 300A (at 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, etc.) |
| Mechanical Life | 200,000 Operations |
| Electrical Life (Resistive) | 300A @ 1000VDC: 200 cycles; @1500VDC: 100 cycles |
| Coil Voltage Options | 12VDC, 24VDC, 9-36VDC |
| Weight | 282g |
| Dimensions (L×W×H) | 79.5×49.7×72.6mm |
| Ambient Temperature | -40℃ to +85℃ |
Key Parameters
- Rated Current: 300A
- Rated Voltage: 1000VDC / 1500VDC
- Contact Form: 1A (SPST-NO)
- Operate Time: ≤50ms
- Release Time: ≤30ms
- Insulation Resistance: ≥1000MΩ (1000VDC)
- Mechanical Life: 200,000 operations
- Coil Voltage: 12VDC, 24VDC, or 9-36VDC
- Protection Level: IP67
Application Fields
The 300A High Voltage Ceramic Contactor is ideally suited for a wide range of high-power DC applications, including:
- Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs)
- Energy Storage Systems (ESS) and Battery Management Systems (BMS)
- DC Charging Piles and Charging Stations
- Renewable Energy Systems (Solar, Wind)
- Industrial Power Distribution and Control
- UPS and Power Backup Systems
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.



