General description New Heavy Duty 4-Pin SPST Brand Relay designed for high current applications. This relay is capable of handling up to 40A, making it ideal for auto switches and starters. Each package includes two 40A 4-Pin 12V vehicle relays, ensuring you have the necessary components for your automotive needs. Technical specifications Model No.: JD2912-1H-12VDC Coil Capacity: 40A Operating Voltage: 12V DC Mechanical Life: 10,000+ cycles