Applications: Suitable for room ventilation, dehumidification cycles, lighting control, circulating pumps, and time-based signaling. GRT8-S1: Features one group of contacts operating in a timed cycle. Function Features: AC230V voltage, 1SPDT output (16A/AC1). Two timing functions: cycler starting with pulse or cycler starting with pause. Function selection via external jumper at terminals S-A1. Time range: 0.1 second to 100 days, divided into 10 adjustable ranges: (0.1 s – 1 s, 1 s – 10 s, 0.1 min – 1 min, 1 min – 10 min, 0.1 hr – 1 hr, 1 hr – 10 hr, 0.1 day – 1 day, 1 day – 10 days, 3 days – 30 days, 10 days – 100 days). LED indicator shows relay status. 1-module design for DIN rail mounting. Color: White. Material: PC. Package includes: 1 x Timer Relay. Note: Other items not included. Lighting and display differences may cause slight color variations. Measurement tolerance: +/- 1-3 cm.