The RR3B-ULDC110V is a 3-pole general-purpose power relay with blade termination, indicator light, and check button designed for reliable DC load switching in industrial control systems. The relay features a 110V DC coil rated at 13 mA with a coil resistance of 8460 O (±10% at 20°C), and operates with a maximum operating time of 25 ms and release time of 25 ms. Contact ratings include 0.5 A at 110V DC resistive and 0.3 A at 110V DC inductive, with silver contacts having a maximum contact resistance of 30 mO (initial value). The relay is housed in a blade-type base compatible with DIN rail and panel mount sockets, and operates reliably across a wide temperature range with high contact reliability and long service life. Common applications include motor control, power distribution, battery isolation, and general-purpose switching in industrial equipment and control panels.