The MY4NJ Power Relay is a versatile electromagnetic switching component designed for industrial control applications and automation systems. This compact relay features a 4PDT (4 Pole Double Throw) configuration, providing four normally open and four normally closed contacts that enable sophisticated circuit control and switching operations. With its transparent blue housing, you can visually inspect the internal mechanism and monitor relay operation. The silver alloy contacts deliver reliable performance with a contact rating of 5A at 240V AC or 5A at 28V DC, while the relay boasts an impressive electrical life exceeding 100,000 operations. Available in multiple coil voltage options including AC 12V, 24V, 110V, and 220V at 50Hz/60Hz, this relay adapts to various power supply configurations. The built-in LED indicator provides instant visual confirmation of relay status during operation. Measuring approximately 1.3 x 1.1 x 0.8 inches with 14 pins, it mounts conveniently on standard 35mm DIN rail for easy installation in control panels and electrical enclosures. The relay operates reliably across temperatures from -13°F to 131°F with fast action time under 25ms, making it suitable for HVAC systems, motor control, lighting control, and general industrial automation applications.