Ben SUL 181h Programmable Channel Analogue Timer Switch

The Ben SUL 181h Programmable Channel Analogue Timer Switch

The SUL 181 h is a robust 1-channel analogue timer switch (daily program) designed for DIN-rail installation. It features a mechanical dial with 48 time segments, offering a minimum switching interval of 30 minutes, and includes a 3-day NiMH backup to preserve settings during power outages

Technical Highlights
Operating Voltage: 110–240 V AC, 50–60 Hz (also available in 24 V versions)
Switching Capacity: Up to 16 A (resistive) at 250 V AC, 4 A at cos φ = 0.6
High Accuracy Clock: Quartz-controlled stepper motor with ≤ ±1 s/day precision
Manual Override: Permanent ON/OFF switch and visible switching status
Power-Saving Design: Standby consumption as low as 0.1 W
Safety & Durability: Rated IP20; housed in self‑extinguishing thermoplastic; complies with VDE/EN standards

Use Cases
Ideal for daily scheduling in lighting, heating systems, ventilation, or industrial automation. The single channel and DIN-rail compatibility make it suitable for compact control panel setups.