Premium 30A 48VDC High Voltage Epoxy Encapsulated Relay
- Rated Current: 30A DC
- Coil Voltage: 12V, 24V, or 48V DC Options
- Max Switching Voltage: 1000 VDC
- Contact Type: 1 Normally Open (1NO)
- Contact Material: Silver-plated Copper
- Operate Time: ≤30ms
- Insulation: Epoxy Encapsulated
- Operating Temp: -40°C to +85°C
- Life Expectancy: Up to 200,000 mechanical operations
Description
Introducing the 30A 48VDC High Voltage Epoxy Encapsulated Relay MEV30 series from Shenzhen Mingni Technology, a robust and reliable high-voltage DC contactor engineered for demanding applications. This epoxy-encapsulated relay is designed to handle a substantial 30A continuous current and features multiple coil voltage options, including the 48VDC model, ensuring compatibility with a wide range of systems.
Its standout capability is a maximum switching voltage of 1000 VDC, making it an exceptional choice for managing high-power circuits. The relay’s construction ensures stable performance with a low contact resistance of ≤2.0mΩ, minimizing power loss and heat generation. Ideal for electric vehicles, renewable energy systems, industrial automation, and heavy-duty power distribution, this 30A 48VDC High Voltage Epoxy Encapsulated Relay offers a perfect blend of durability, safety, and high electrical performance. Its epoxy sealing provides enhanced protection against environmental factors, ensuring long-term reliability in harsh operating conditions.


Product Features
- High Voltage Handling: Capable of switching up to 1000 VDC, perfect for advanced power systems.
- Epoxy Encapsulation: Provides excellent moisture, dust, and corrosion resistance for enhanced durability.
- Low Coil Power Consumption: Energy-efficient operation with typically less than 4W holding power.
- High Load Capacity: Rated for 30A continuous current with strong overload.
- Fast Switching: Quick operate and release times (≤30ms & ≤10ms) for precise control.
- Robust Construction: Withstands high levels of shock and vibration per industry standards.
- Wide Temperature Range: Operates reliably in temperatures from -40℃ to 85℃.
- Safety Compliant: High dielectric strength (≥2500 Va.c.) and insulation resistance (≥1000 MΩ).
- RoHS Compliant: Manufactured with environmental standards in mind.
Product Specifications of 30A 48VDC High Voltage Epoxy Encapsulated Relay
| Parameter | Specification |
|---|---|
| Product Model | MEV30-12 / MEV30-24 / MEV30-48 |
| Rated Coil Voltage (Vd.c.) | 12, 24, 48 |
| Pick-up Voltage (max) | ≤9V (12V coil), ≤18V (24V coil), ≤36V (48V coil) |
| Coil Power (W) | 3.6 (12V), 3.8 (24V), 4.0 (48V) |
| Contact Arrangement | 1 Form A (1SH) – Single Pole Normally Open (SPNO) |
| Contact Material | Silver-plated Copper |
| Rated Load Current | 30A |
| Max Switching Voltage | 1000 VDC |
| Contact Resistance | ≤2.0 mΩ (typical 1.0 mΩ) |
| Operate Time | ≤30 ms |
| Release Time | ≤10 ms |
| Insulation Resistance | ≥1000 MΩ (at 1000 VDC) |
| Dielectric Strength | ≥2500 Va.c. (50/60 Hz, 1 min, leak ≤1mA) |
| Electrical Endurance | Varies by voltage: 2k ops @450VDC/30A, 6k ops @750VDC/30A, 1k ops @1000VDC/20A |
| Mechanical Endurance | 200,000 ops (no load) |
| Operating Temperature | -40℃ ~ +85℃ |
| Weight (approx.) | — |
| Termination | Screw Terminals (M5 internal thread) |
Key Specifications
- Rated Current: 30A DC
- Coil Voltage: 12V, 24V, or 48V DC Options
- Max Switching Voltage: 1000 VDC
- Contact Type: 1 Normally Open (1NO)
- Contact Material: Silver-plated Copper
- Operate Time: ≤30ms
- Insulation: Epoxy Encapsulated
- Operating Temp: -40°C to +85°C
- Life Expectancy: Up to 200,000 mechanical operations
Application Fields
This 30A 48VDC High Voltage Epoxy Encapsulated Relay is versatile and built for critical roles in various industries:
- Electric Vehicles (EVs) & Hybrid Vehicles (HEVs): Battery disconnect, main power control, and auxiliary system switching.
- Renewable Energy Systems: Solar PV array combiner boxes, charge controllers, and battery bank isolation.
- Industrial Equipment: Control of high-power DC motors, machinery, and automated systems.
- Power Supply & Distribution: DC power distribution units, UPS systems, and backup power control.
- Telecommunications: Power management and backup system control in base stations and data centers.
- Marine and Aerospace: Robust power switching applications requiring high reliability.
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.







