This MY4NJ power relay set is an essential component for electrical control systems requiring versatile switching capabilities. Each relay features a 4PDT configuration with 4 normally open and 4 normally closed contacts, providing exceptional flexibility for complex circuit designs and automation applications. The transparent blue housing allows for easy visual inspection of the internal mechanism, while the integrated LED indicator provides instant confirmation of relay activation. With a contact rating of 5A at 240V AC or 28V DC and a rated current of 10A, these relays handle a wide range of loads reliably. The durable silver alloy contacts ensure an electrical life exceeding 100,000 operations, making them ideal for frequent switching applications. Each relay comes with a matching socket base designed for convenient 35mm DIN rail mounting, streamlining installation in control panels and electrical enclosures. Available in multiple coil voltage options from 12V to 220V in both AC and DC configurations, these relays integrate seamlessly into diverse electrical systems. The compact dimensions and quick action time of less than 25ms make them suitable for industrial automation, HVAC controls, and general-purpose switching applications. This 10-pack set includes both relays and socket bases, providing excellent value for projects requiring multiple switching points.