Applications: Used for room ventilation, dehumidification, light control, circulating pumps, and signage. GRT8-S1: Features one group of contacts operating in a cycle simultaneously. Function Features: AC230V voltage, 1SPDT output (16A/AC1). Two time functions: cycler starting with pulse, and cycler starting with pause. Function selection via external jumper on terminals S-A1. Time scale ranges from 0.1 seconds to 100 days, divided into 10 ranges: (0.1 s – 1 s, 1 s – 10 s, 0.1 min – 1 min, 1 min – 10 min, 0.1 hrs – 1 hr, 1 hr – 10 hrs, 0.1 day – 1 day, 1 day – 10 days, 3 days – 30 days, 10 days – 100 days). Relay status indicated by LED. 1-module design with DIN rail mounting. Color: White. Material: PC. Package Contents: 1 x Timer Relay. No other items included. Note: Lighting and display differences may cause slight color variations between the image and actual product. Measurement may vary by +/- 1-3 cm.