The AZ166-2CT-240A is a heavy-duty miniature power relay designed for high-switching-capacity applications with AC coil operation at 240VAC nominal. This relay features a DPDT (2 Form C) contact arrangement with silver cerium contacts rated for 10A at 250VAC and 10A at 30VDC, delivering maximum switched power of 300W at 2500VA. The relay operates with a nominal coil current of 5.0mA ± 10% and coil resistance of 22,000 ± 15% ohms, with a maximum continuous dissipation of 1.7VA 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 25msec maximum at nominal coil voltage. The polycarbonate enclosure with plug-in terminals and top panel mount design makes it suitable for industrial control systems, automation equipment, and switching applications requiring high reliability and compact form factor.