New Heavy Duty 4-Pin SPST Relay Use Optional Relay Harness, or Female Crimp Connectors High 40A coil capacity capable of handling high current applications with ease Package Includes: 2 x 40A 4-Pin 12V Automotive Relays Mechanical Life of 10,000+ Cycles Contact Material: AgSnO12 Contact Form: 1Z(C)/1H(A) Contacts Notes: No: 40A 72VDC Contact Resistance: 100mMax at 6VDC 1A Max Switching: 40A Max Switching Power: 560W Life Expectancy Electrical: 100,000 operations (at 30 operations/min) Mechanical Life Expectancy: 10,000,000 operations Coil Specification: Nominal Voltage (VDC): 12V Coil Resistance (of 1.8W): 80 Max Operate Voltage (VDC): 6.5~8.0 Output Mix (VDC): 1.2~3.6 Max Applicable Voltage (VDC): 14 Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.