Timed Interface Module - 38.21 Series. Electromechanical or solid state relay outputs 4 functions: On Delay, On Pulse, Symmetrical recycling, Fixed Pulse (0.5s) delayed 4 timescales: 0.1s to 3s, 3s to 60s, 1 min to 20 min, 0.3 h to 6 h Slim design, only 6.2mm wide DIN rail mounting