SUL181D Mechanical Timer Switch 24H 96 Segments Quartz
SUL181D Mechanical Timer Switch 24H 96 Segments Quartz
SUL181D Mechanical Timer Switch — 24H Quartz-Controlled Daily Scheduling
Take full control of your electrical devices with the SUL181D Analogue Mechanical Timer Switch. Featuring quartz-controlled precision and up to 96 switching segments per day, this compact DIN-rail timer makes automating lighting, pumps, HVAC systems, and more effortlessly simple. The intuitive segment-based programming lets you set and read schedules at a glance — no complicated menus or digital displays required.
Key Features
- 96 Switching Segments Per Day — Program up to 96 on/off events in a single 24-hour cycle
- Shortest Switching Time: 15 Minutes — Precise scheduling at 15-minute intervals
- Quartz-Controlled Accuracy — Reliable, drift-free timekeeping day after day
- 12/24-Hour Recognition — Clock hands for clear time display with dual-format support
- 3-Position Manual Switch — Easily toggle between Permanent ON / AUTO / Permanent OFF
- Simple Summer/Winter Time Correction — Adjust for daylight saving time in seconds
- Duo Fix Spring Terminals — Accepts 2 conductors each; compatible with wire or strand (with or without wire end sleeve), wire diameter 0.5–2.5 mm²
- Switching Status Display — Instantly see the current switching state
- Single Channel, Daily Program — Streamlined, dependable 1-channel operation
- Plug-In Connection Release Button — Easy wiring and removal
Specifications
| Model | SUL181D |
| Type | Analogue Mechanical Timer Switch (Mini) |
| Program Type | Daily (24H) |
| Channels | 1 |
| Switching Segments | 96 per day |
| Minimum Switching Interval | 15 minutes |
| Time Control | Quartz controlled |
| Manual Override | Permanent ON / AUTO / Permanent OFF |
| Wire Diameter | 0.5 – 2.5 mm² |
| Battery Included | No |
| Country of Origin | Made in China |
Ideal Applications
- Billboard or showcase lighting automation
- Air-conditioning and commercial refrigeration scheduling
- Pumps, motors, geysers, and fan control
- Hydroponic systems
- Wastewater treatment systems
- Generator exercising routines
- Boiler and heater control
- Pool & spa equipment scheduling
What's in the Box
- 1× SUL181D Mechanical Timer Switch
Please Note: Due to lighting and screen differences, the item's color may vary slightly from images. Please allow 1 mm–1 cm tolerance due to manual measurement.
For guidance on electrical safety standards and best practices for timer-controlled electrical installations, visit OSHA Electrical Safety.
Frequently Asked Questions
Q: How many on/off schedules can the SUL181D mechanical timer switch handle per day?
A: The SUL181D supports up to 96 switching segments per day, meaning you can program up to 48 complete on/off cycles within a 24-hour period. The shortest interval between switching events is 15 minutes.
Q: Does the SUL181D timer switch require a battery to maintain its schedule?
A: No battery is included or required for basic operation. The timer is quartz-controlled and powered through its wired electrical connection, ensuring consistent and accurate timekeeping without the need for a backup battery.
Q: Can I override the automatic schedule on the SUL181D?
A: Yes. The SUL181D features a 3-position manual switch that lets you select Permanent ON, AUTO (follows your programmed schedule), or Permanent OFF at any time, giving you full manual control whenever needed.
Q: What wire sizes are compatible with the SUL181D timer switch terminals?
A: The Duo Fix spring terminals on the SUL181D accept conductors with a wire diameter of 0.5 to 2.5 mm², compatible with both wire and strand types, with or without wire end sleeves.