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This high-power DC relay features 4Pin configuration with 30A large current carrying capacity. Compatible with MPQ1-S-112D-A, MPQ1-S-124D-A, NT90 and SLA series relays, optional 5V, 12V, 24V DC coil voltage for flexible matching. Adopts high-quality alloy contacts with low contact resistance, good conductivity and outstanding durability. Built with anti-interference and high temperature resistant structure, it ensures stable operation in complex environments. Widely used for automotive modification, household appliances, industrial control equipment, battery power control and electronic DIY switching projects.