R-K Electronics, Inc. Protection Relays & Systems PRRL-300

The PRRL-300 is a phase loss and reversal relay designed for three-phase systems with input voltage ranges from 110VAC to 600VAC. It operates at a frequency of 60Hz and is capable of detecting phase loss conditions when there is an 18% voltage drop in one phase. The relay features fixed time delays for both pick-up and drop-up at 5 seconds. It has a power consumption of 16VA and provides output options including SPDT and DPDT configurations. The relay is housed in a surface-mountable enclosure with screw terminals for easy installation. It is rated for 100,000 full load electrical cycles and 10,000,000 mechanical cycles, making it suitable for various industrial applications. The operating temperature range is from 0¬8C to 40¬8C, with a storage temperature range of -10¬8C to 85¬8C.