Heavy Current Starter Relay, 500A DC 12V SPST Auto Contactor, Water Resistant Phenolic Housing

This heavy-duty 500A DC 12V SPST starter relay is engineered for demanding automotive and high-current applications. Housed in water-resistant black phenolic plastic, this robust contactor features silver-tin-indium alloy contacts for superior conductivity and durability. With a rated switching current of 500A at 14VDC, it delivers reliable performance in challenging conditions. The relay boasts an impressive electrical life expectancy of 100,000 operations at 30 operations per minute and mechanical durability of 10 million cycles. Operating efficiently within a temperature range of -30 to 80°C, it maintains excellent insulation resistance of 100mΩ minimum at 500VDC. The coil specifications include 168Ω resistance with precise operate and release timing of 50ms. This relay excels in dual battery setups and universal 12V applications, helping extend battery life by preventing primary battery discharge. Its robust construction withstands vibration resistance of 10-55Hz and shock resistance up to 100g, making it ideal for automotive and industrial uses where reliable high-current switching is essential.

• HEAVY DUTY PERFORMANCE: 500A DC starter relay with high current capacity, designed for 12V automotive applications with reliable switching capabilities
• DURABILITY TESTED: Mechanical life expectancy of 10 million operations and electrical life of 100,000 operations at 30 operations per minute
• ROBUST CONSTRUCTION: Water-resistant black phenolic plastic housing with AgSn alloy contacts, ensuring reliable performance in demanding conditions
• TECHNICAL SPECIFICATIONS: 50ms operate/release time, operating temperature range of -30~80°C, with 1500VAC dielectric strength between contacts and coil
• INSTALLATION SPECS: Compact design weighing 235g, features universal 12V compatibility with operating voltage range of 7.8-14VDC