The ISDUR4 Macromatic Relay is a 4-channel intrinsically safe relay designed for hazardous locations, including Class I, II, and III. With a high electrical life of 50,000 closures at full load AC and a mechanical life of 5, this relay is built to last. It has a nominal voltage of 120 VAC or 125 VDC, with an output rating of 5A, making it suitable for a variety of industrial automation and motion control applications. The relay also features a DIN rail mounting option, status indicator, and is designed for wire sizes ranging from 14-18 AWG.