AUTO CAR RELAY JD2912 48V 4PIN

Description

The JD2912 48V 4-pin relay is an automotive-style Bosch-type DC power relay designed for switching low to medium-DC loads in vehicles, industrial control circuits, solar systems, and battery-powered equipment. It uses an electromagnetic coil to control a high-current contact switch, allowing safe control of higher-power circuits using a low-power signal.

This 48V version is commonly used in 48V EV systems, forklifts, telecom DC systems, and industrial battery setups.

Key Features

• Automotive Bosch-type DC power relay
• 4-pin configuration (2 coil + 2 contact terminals)
• 48V DC coil version for high-voltage control systems
• SPST-NO contact (normally open switching)
• High switching capacity up to 40A (model dependent)
• Suitable for DC load switching up to ~48–60V systems
• Compact plug-in blade terminal design (6.3 mm spade type)
• Fast response time with reliable mechanical switching
• Low coil power consumption (~1.8W typical)
• Durable mechanical life up to millions of cycles
• Easy replacement and standard automotive footprint

Specifications

• Product Type: Automotive Power Relay
• Model: JD2912 (48V variant)
• Coil Voltage: 48V DC
• Contact Configuration: SPST-NO (4-pin version)
• Contact Rating: 40A (typical high-load version; some variants 10A–60A)
• Max Switching Voltage: up to 60–75V DC (variant dependent)
• Coil Power Consumption: ~1.5–2W
• Terminal Type: 4-pin blade (85, 86 coil / 30, 87 contact)
• Operating Principle: Electromagnetic relay
• Mounting Type: Plug-in automotive socket
• Operating Temperature: -25°C to +100°C
• Electrical Life: ~100,000 cycles
• Mechanical Life: up to 10 million cycles
• Application: EV systems, battery switching, automotive lighting, pumps, DC motor control, telecom power systems, solar DC circuits