Product Introduction
The relay features a silver-plated copper contact ensuring low contact resistance and high durability. Typical applications include electric vehicles (EVs), photovoltaic solar systems, energy storage solutions, industrial automation, battery management systems, and charging infrastructure. Engineered for stability and longevity, this 50A 48VDC Epoxy High Voltage Relay offers exceptional performance in both commercial and industrial settings where safety and reliability are paramount.


Product Features
- High Voltage Capacity: Supports up to 1000V DC switching.
- High Current Rating: Rated for 50A continuous current.
- Epoxy Encapsulation: Provides excellent insulation and environmental protection.
- Silver-Plated Contacts: Ensure low contact resistance and high conductivity.
- Long Electrical Life: Designed for up to 5000 operations at 30A/1000V DC.
- Wide Operating Temperature: Functions reliably from -40°C to 85°C.
- Low Power Consumption: Coil power is only 4.0W at 48V DC.
- High Dielectric Strength: Withstands 2500V AC for 1 minute.
- Vibration and Shock Resistant: Meets rigorous industrial standards.
Product Specifications of 50A 48VDC Epoxy High Voltage Relay
| Parameter | Specification |
|---|---|
| Rated Coil Voltage | 48V DC |
| Pick-Up Voltage | ≤36V DC |
| Drop-Out Voltage | ≥4V DC |
| Coil Resistance | 576 Ω ±10% |
| Coil Power | 4.0W |
| Contact Arrangement | 1 Form A (1SH) |
| Contact Material | Silver-Plated Copper |
| Contact Resistance | ≤2.0mΩ (typical 1.0mΩ) |
| Rated Current | 50A |
| Max Switching Voltage | 1000V DC |
| Operate Time | ≤30ms |
| Release Time | ≤10ms |
| Insulation Resistance | ≥1000 MΩ (1000V DC) |
| Dielectric Strength | 2500V AC (50/60Hz, 1min) |
| Operating Temperature | -40°C to +85°C |
| Humidity Range | 5% to 85% |
| Mechanical Endurance | 200,000 operations (no load) |
| Electrical Endurance | 5,000 operations (30A, 1000V DC) |
| Weight | Approx. 100g |
Key Parameters
- Rated Coil Voltage: 48V DC
- Rated Current: 50A
- Max Switching Voltage: 1000V DC
- Contact Form: 1 Form A (SPST-NO)
- Operate Time: ≤30ms
- Release Time: ≤10ms
- Insulation: Epoxy Encapsulated
- Operating Temperature: -40°C to +85°C
- Termination: Quick Connect (300mm 20AWG leads)
Application Fields
This50A 48VDC Epoxy High Voltage Relay is ideally suited for:
- Electric Vehicles (EVs) and Hybrid Electric Vehicles (HEVs)
- Photovoltaic (PV) Solar Systems and Inverters
- Battery Management Systems (BMS) and Energy Storage
- DC Power Supplies and Distribution Systems
- Industrial Control Systems and Automation
- Charging Stations and Infrastructure
- Telecommunications Power Systems
- Marine and Automotive Electronics
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.







