AZ428-56-4L is a miniature general-purpose relay designed for reliable switching and control applications. This 2-pole relay features a 48 VDC nominal coil voltage with a maximum continuous rating of 70 VDC, a coil resistance of 2,500 ohms (±10%), and a must-operate voltage of 36 VDC. The relay offers exceptional mechanical life expectancy of 500 million operations and operates reliably across a wide ambient temperature range of -55°C to 80°C. With contact resistance less than 50 milliohms initially, dielectric strength of 1500 Vrms (contact to coil) and 1000 Vrms (all other points), and insulation resistance of 1000 megohms minimum at 25°C, this relay provides robust performance for industrial control, telecommunications, and automation systems requiring compact, high-reliability switching.