The analog mechanical timer switch, such as the Theben SUL 181 d, is a robust and easy-to-use device for automating the on/off cycles of electrical appliances. It features a 24-hour daily program divided into 96 segments, allowing precise control in 15-minute intervals.
Operating within a voltage range of 110–230V AC, this timer is ideal for street lighting, industrial machinery, and household appliances. Its power reserve function ensures that the programmed schedule remains intact even during short power outages.
The device is mounted on a DIN rail, making it suitable for integration into control panels and distribution boards. Its analog dial and manual override offer intuitive operation for general-purpose automation.
TECHNICAL DETAILS:
| Specification | Value |
| Type | Analog Mechanical Timer Switch |
| Model Example | Theben SUL 181 d or equivalent |
| Program Cycle | 24-hour daily |
| Switching Segments | 96 segments |
| Minimum Switching Time | 15 minutes |
| Voltage Range | 110–230V AC |
| Power Reserve | Yes (retains time during outages) |
| Mounting Type | DIN rail |
| Applications | Industrial control, street lighting, household appliances |
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