The Three Phase Phase Sequence-Phase Failure Relay is designed to measure the three-phase mains (3x400V) and provide protection against phase sequence and phase failure issues. It has a time delay range of 0.5-10 seconds. The relay features 1 changeover contact with a rating of 16 A, which is based on the measured voltage. The width of the relay module is 17.5 mm, making it compact and space-saving.