Automotive Relay 40A 12V / 24V 4 / 5 Pin

The Automotive Relay 40A is a heavy-duty electromechanical relay designed for reliable switching of high-current electrical loads in automotive, marine, and industrial applications. An essential component for auto electricians, vehicle modifiers, DIY automotive enthusiasts, and electronics hobbyists who need dependable, high-current switching in 12V or 24V electrical systems.

This relay uses a low-current control signal to switch a high-current load circuit, making it ideal for controlling accessories such as headlights, fog lights, horns, cooling fans, fuel pumps, winches, and other high-draw automotive components without overloading switches or control wiring. The robust sealed construction ensures reliable operation in the demanding underbonnet and vehicular environments.

Available in four variants combining 4-pin and 5-pin configurations with 12V and 24V coil voltages, this range covers the most commonly required automotive relay specifications. The 4-pin variant provides standard normally open switching, while the 5-pin variant adds a normally closed contact for more complex switching logic and failsafe circuit designs.

Specification:

• Product Type : Automotive Electromechanical Relay
• Current Rating : 40A
• Available Coil Voltages : 12V DC / 24V DC
• Available Pin Configurations : 4-Pin / 5-Pin
• 4-Pin Function : Normally Open (NO) Switching
• 5-Pin Function : Normally Open (NO) & Normally Closed (NC)
• Contact Material : Silver Alloy
• Terminal Type : Spade / Blade Terminals
• Application : Automotive, Marine, Industrial Switching