Product Overview
Based on ATST Electric’s core concept of “Precise Control, Safe and Reliable”, TH189 Mechanical Time Switch adopts a practical mechanical timing structure to achieve automatic ON/OFF control within a 24-hour cycle. The product does not require batteries or external charging during normal use. It is driven by spring energy storage and supports power-off memory, helping maintain timing control even when the power supply is interrupted.
With compact structure, intuitive dial setting and stable contact output, TH189 is suitable for electrical systems that require simple, durable and cost-effective timing control. It can be widely used in industrial equipment, household appliances, lighting systems, pumps, ventilation equipment and other electrical control scenarios.
Main Features
1.Mechanical timing control: TH189 uses a mechanical dial structure for time setting, making operation simple, visible and easy for electricians or maintenance personnel to adjust on site.2.24-hour automatic switching: The product supports daily cycle timing control, helping electrical equipment start and stop automatically according to the preset schedule.3.Power-off memory function: With mechanical spring energy storage design, TH189 can keep timing operation for a certain period during power interruption, improving reliability in practical electrical projects.4.Stable operation: The mechanical control structure provides stable switching performance and is suitable for long-term periodic control of electrical loads.5.Wide voltage adaptability: TH189 supports 100–240VAC, 50/60Hz power supply, making it suitable for different regional power systems and common electrical distribution applications.6.Compact and easy installation: The product has a compact body and clear terminal arrangement, which is convenient for installation in control boxes, distribution boards and equipment control panels.7.Practical contact output: SPST contact design is suitable for simple ON/OFF control of various electrical loads such as lighting, fans, pumps and small equipment.
Application Scenarios
1.Lighting control: Used for automatic switching of indoor lighting, outdoor lighting, shop signs, garden lights, corridor lights and public area lighting according to daily time schedules.2.Pump and motor control: Suitable for timed start and stop control of water pumps, small motors, drainage equipment and circulation systems.3.Ventilation and fan systems: Applied in exhaust fans, workshop ventilation, greenhouse ventilation and commercial ventilation equipment requiring regular operation.4.Household electrical control: Used for timed operation of water heaters, small appliances, garden irrigation equipment and other household electrical devices.5.Commercial facilities: Suitable for stores, offices, warehouses, parking lots and public facilities where electrical equipment needs to be controlled automatically at fixed times.6.Industrial equipment management: Applied in control cabinets, small machinery, auxiliary equipment and production support systems that require simple and reliable periodic ON/OFF control.
Technical Date
| Supply voltage |
100-240VAC, 50/60Hz |
| Switching capacity |
20A/250V~at cosΦ=1 |
| Number of switching segments |
96 |
| Time accuracy at 25°C |
≤+2 Sek./day(quartz) |
| Power reserve |
300 hours |
| 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 |
1.5W |
Wiring Diagram
Dimensions
