AZ166-2CT-120A is a heavy-duty miniature power relay designed for industrial switching applications. It features a DPDT (2 Form C) contact arrangement with silver cerium contacts rated for 10 A at 250 VAC and 10 A at 30 VDC, delivering maximum switched power of 300 W at 2500 VA. The relay operates with a 120 VAC coil (50/60 Hz) requiring 10.0 mA nominal current and 4,550 O coil resistance, with a maximum continuous dissipation of 1.7 VA at 20°C. It provides reliable performance across an operating temperature range of -55°C to 70°C, with a minimum mechanical life expectancy of 2×107 operations and operate/release times of 25 msec maximum at nominal coil voltage. The relay is housed in a polycarbonate enclosure with plug-in terminals, top panel mount capability, and carries UL/CUR certification (file E43203), making it suitable for general-use and resistive load applications in control systems, automation equipment, and industrial machinery.