12VDC 40A SPDT Automotive Relay with Metal Mounting Tab

Reliable 12V 40A SPDT Automotive Relay for Everyday Use

This 12VDC 40A SPDT automotive relay is a versatile and durable choice for a wide range of automotive and DIY electrical projects. Designed with a sturdy metal mounting tab, this single pole double throw (SPDT) relay provides simple installation and stable performance. Its universal design makes it perfect for cars, trucks, RVs, boats, and more.

Key Features of the 12V 40A SPDT Automotive Relay

• High Current Capability: Rated 40A at 14VDC for normally open (NO), and 30A at 14VDC for normally closed (NC) terminals.
• SPDT Configuration: Single Pole Double Throw design for switching between two circuits, providing flexibility in your setup.
• Rugged Metal Tab: Attached metal tab makes mounting to a chassis or panel fast and secure.
• Universal Automotive Compatibility: Works well with 12VDC systems commonly found in vehicles and equipment.
• Easy Wiring: 5 terminals with 0.250″ quick connect (plug-in) style fits standard automotive relay sockets.

Technical Specifications

• Coil Voltage: 12VDC
• Contact Form: SPDT (Single Pole Double Throw)
• Contact Ratings:
  • NO (Normally Open): 40A @ 14VDC
  • NC (Normally Closed): 30A @ 14VDC
• Coil Type: Non-latching
• Mounting Type: Socketable or chassis mount with metal tab
• Termination: Quick connect, plug-in style 0.250 terminals (5-pin)

Ideal for Many Automotive and DIY Projects

This 12V automotive relay is perfect for controlling headlights, fuel pumps, cooling fans, amplifiers, light bars, horns, and other high-current accessories in your vehicle. It’s also a favorite for hobbyists and tinkerers who want reliable, easy-to-install switching in their electrical projects.

Compatible Accessories

For a secure and organized installation, pair this relay with our Matching Relay Socket: CES-BRS-006.

Product ID: CES-SPDT40M