SUL181 h Analogue Time Switch – 24-Hour Mechanical DIN Rail Timer
The SUL 181 h is a high-precision analogue daily time switch engineered for efficient automated control of electrical circuits. Designed for easy 35mm DIN rail mounting, this 1-channel timer features a quartz-controlled stepper motor and an integrated 3-day power reserve via a rechargeable NiMH battery, ensuring your programs remain active even during power outages.
Programming is quick and intuitive using 48 mechanical switching segments on a 24-hour dial. It is ideal for automating lighting systems (billboards, storefronts, streetlights), HVAC equipment, water pumps, heaters, and industrial machinery to maximize energy efficiency.
Parameter | Specification |
|---|---|
Model | SUL 181 h |
Switch Type | Analogue / Mechanical Time Switch |
Number of Channels | 1 Channel |
Program Type | Daily (24-Hour) Program |
Operating Voltage | 230V AC |
Frequency | 50 – 60 Hz |
Switching Capacity (Resistive) | 16A @ 250V AC ($\cos \phi = 1$) |
Switching Capacity (Inductive) | 4A @ 250V AC ($\cos \phi = 0.6$) |
Shortest Switching Time | 30 Minutes |
Programmable Every | 30 Minutes |
Number of Segments | 48 |
Time Accuracy ($\text{at } 25^\circ\text{C}$) | $\le \pm 1\text{ second/day}$ (Quartz controlled) |
Contact Type | Changeover contact (SPDT - Potential-free & phase-independent) |
Power Reserve | 3 Days (Approx. 72 Hours via NiMH battery) |
Stand-by Consumption | $\sim 0.1\text{ W}$ |
Type of Protection | IP 20 |
Protection Class | Class II according to EN 60 730-1 |
Ambient Temperature | $-20^\circ\text{C}$ to $+50^\circ\text{C}$ |

Ssaoco Dammam
- Started from: Jul 10, 2025



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