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This high-power 4Pin relay includes MPQ1-S-112D-A (12V) and MPQ1-S-124D-A versions, compatible with NT90 SLA-12VDC-A standard. It supports 5V, 12V, 24V drive voltage with up to 30A heavy current load capacity. Adopting premium coil and contact materials, it features sensitive action, low heat generation and stable performance. Perfect for automotive modification, industrial automation, home appliance control and electronic DIY circuit switching applications.