The RH4B-ULAC240V is a 4-pole double-throw (4PDT) compact power relay designed for AC 240V coil operation with integrated indicator LED functionality. This miniature power relay features a 10A contact capacity per pole, making it suitable for switching moderate-power loads in industrial control applications. The relay operates at 240V AC with a rated coil current of 9.8 mA and coil resistance of 8.3 O at 20°C, with a maximum continuous applied voltage of 110% of rated voltage. The pickup voltage is 80% maximum and dropout voltage is 30% minimum of rated coil voltage. With its compact size and integrated LED indicator for visual operation confirmation, this relay is ideal for panel-mounted applications, motor control circuits, and automation systems where space efficiency and operational visibility are required.