Applications: Used for regular room ventilation, dehumidification, light control, circulating pumps, and time-based control systems. GRT8-S1: One group of contacts operating in a timed cycle. Function Features: Voltage AC230V. Output: 1 SPDT (16A/AC1). 2 time functions: Cycler starting with pulse, Cycler starting with pause. Function selection via external jumper on terminals S-A1. Time range: 0.1 seconds 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). Relay status indicated by LED. 1-module design for DIN rail mounting. Color: White. Material: PC. Package Contents: 1 x Timer Relay Note: The package includes only the items listed. Other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual product. Measurement may vary by +/- 1-3 cm.