Product Overview
Based on ATST Electric’s design philosophy of “Precise Control, Safe and Reliable”, ALC18 / ALST8 Mechanical Time Switch adopts a mature mechanical timing mechanism to achieve stable and repeatable daily cycle control. The product does not rely on complex programming or external communication signals, making it a highly practical solution for basic time-based control applications.
With compact DIN rail-compatible structure and clear dial setting interface, ALC18 / ALST8 is suitable for installation inside distribution boards, control panels and electrical cabinets. Its mechanical design ensures strong anti-interference performance, making it reliable even in environments with voltage fluctuations or electrical noise.
This series is widely used in simple automation systems where durability, ease of operation and cost efficiency are more important than advanced programming functions.
Main Features
1. Mechanical timing structure: Pure mechanical dial and gear system enables intuitive time setting without software or programming requirements.
2. 24-hour cycle control: Supports daily automatic ON/OFF switching, suitable for repetitive and fixed time control applications.
3. High reliability operation: Mechanical contact design ensures stable switching performance and long service life under frequent operation conditions.
4. Strong anti-interference capability: Independent of electronic control systems, resistant to voltage fluctuation and electromagnetic interference.
5. DIN rail installation: Standard modular structure allows easy installation in distribution boards and control cabinets.
6. Clear and simple operation: Easy-to-read timing dial allows quick configuration by electrical engineers and maintenance personnel.
7. Cost-effective solution: Ideal for projects requiring reliable timing control with simplified system architecture and low maintenance cost.
Application Scenarios
1. Lighting control systems: Automatic control of street lighting, billboard lighting, factory lighting, warehouse lighting and corridor lighting based on daily schedules.
2. HVAC and ventilation systems: Time-based control of exhaust fans, ventilation systems, cooling fans and air circulation equipment.
3. Water pump and irrigation systems: Suitable for agricultural irrigation, water supply pumps, drainage systems and circulation pumps.
4. Industrial automation support: Used for periodic operation of auxiliary machines, conveyor systems and simple production line equipment.
5. Commercial buildings: Applied in offices, shopping malls, hotels and public facilities for energy-saving time scheduling of electrical loads.
6. Residential and small facilities: Control of water heaters, small appliances, garden systems and household automation equipment.
Technical Date
| Control time | 20 minutes |
| Supply voltage | 100-240VAC, 50/60Hz |
| Switching capacity | 20A/250V~at cosΦ=1 |
| Time accuracy at 25°C | ≤+2 Sek./day(quartz) |
| Type of contact | SPST |
| Type of protection | Plastic enclosure with IP20 |
| Housing and insulation material | High-temperature resistant, self-extinguishing thermoplastic |
| Test approval | CE |
| Power consumption | 4W(ALC18) |
| Control time | 7 minutes |
| Supply voltage | 100-240VAC, 50/60Hz |
| Switching capacity | 20A/250V~at cosΦ=1 |
| Time accuracy at 25°C | ≤+2 Sek./day(quartz) |
| Type of contact | SPST |
| Type of protection | Plastic enclosure with IP20 |
| Housing and insulation material | High-temperature resistant, self-extinguishing thermoplastic |
| Test approval | CE |
| Power consumption | 1W(ALST8) |
Wiring Diagram
Dimensions
