40A DC 12V 4 Pin Relay. 40A 12V Relay. 40 Amp relay. 12V 40 amp Relay. E-Rickshaw Charger Relay. 12v 40 amp relay 4 pin.
- Relay Voltage: 12V
- Current: 40A
- Use in charger and Other device
- 40 amp 4 pin relay
- New Relay
- Quantity: 1Pc
40A DC 12V 4 Pin Relay – Heavy Duty Automotive Power Relay for Eriska Charger / Battery Charger
The 40A DC 12V 4-Pin Relay is a high-performance switching relay designed for automotive, inverter, UPS, and charger control applications. It is widely used in Eriska chargers, e-vehicle charging circuits, battery management systems, and high-current switching projects. This relay provides reliable operation with long service life and stable switching under heavy load.
Ideal for DIY electronics, charger repairs, PCB projects, solar inverter repair, and power control switching applications.
Key Features
- Heavy-duty 40A load capacity
- Suitable for DC 12V coil input
- 4-pin SPST (Normally Open) configuration
- Ideal for Eriska Charger / battery charger / EV charger
- Copper coil for stable performance & long durability
- Compact size suitable for PCB and automotive wiring harness
- Heat-resistant plastic enclosure for enhanced safety
- Low-power coil consumption
- Fast switching response and vibration resistance
Technical Specifications
| Specification | Details |
|---|---|
| Relay Type | 4-Pin SPST (Normally Open – NO) |
| Coil Voltage | 12V DC |
| Coil Resistance | 80Ω ±10% (approx.) |
| Contact Rating | 40A @ 14V DC |
| Contact Material | Silver alloy |
| Operating Voltage Range | 9–14V DC |
| Max Switching Current | 40 Amp |
| Pins | 4-Pin standard automotive |
| Dimensions | Approx. 26mm × 22mm × 36mm |
| Applications | Charger relay, automotive relay, inverter, UPS, EV charging, battery switch, horn, lights |
| Life Cycle | Mechanical: 10 Million operations / Electrical: 100K operations |
| Mounting Type | PCB / Socket mount |
| Weight | Approx. 30-40 grams |
Applications
- Eriska battery charger relay
- Lead-acid & Lithium battery charger units
- Electric vehicle (E-rickshaw / e-bike) chargers
- Solar inverter & UPS systems
- Power control panels & PCB projects
- High-current switching & protection circuits
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