Product Overview
Based on ATST Electric’s core concept of “Precise Control, Safe and Reliable”, SSR-04 Liquid Level Controller provides an efficient solution for automatic water level control in industrial, commercial and building water systems.
The controller works with liquid level probes or electrodes to detect the water level condition in tanks, wells or reservoirs. According to the detected upper and lower liquid levels, SSR-04 can automatically control pump operation, helping achieve water filling, drainage, dry-run prevention and overflow protection.
SSR-04 is designed to replace manual pump switching with automatic level control. It helps reduce labor work, protect pump motors from abnormal operating conditions and improve the stability of water supply and drainage systems. Its compact design makes it suitable for installation in pump control boxes, electrical cabinets and automation panels.
Main Features
1. Automatic liquid level control: Detects upper and lower liquid levels and controls pump operation according to actual water level conditions.
2. Electrode-based sensing: Works with liquid level probes or electrodes for reliable detection of conductive liquids.
3. Pump start-stop management: Automatically starts or stops pumps to support water filling, drainage and circulation control.
4. Dry-run protection support: Helps prevent pumps from running under low-water conditions, reducing motor damage risk.
5. Overflow prevention: Stops filling or pumping operation when the preset upper level is reached.
6. Compact installation design: Suitable for pump control panels, distribution boxes and electrical cabinets.
7. Easy wiring and commissioning: Simple control logic helps electricians complete installation and maintenance efficiently.
8. Wide application compatibility: Suitable for water supply, drainage, irrigation, cooling and industrial liquid management systems.
Application Scenarios
1. Water tank control: Used for automatic filling and stopping control in roof tanks, storage tanks and building water tanks.
2. Pump control systems: Suitable for water supply pumps, drainage pumps, booster pumps and circulation pumps.
3. Well and reservoir systems: Applied in wells, reservoirs and water collection systems to control pump operation according to liquid level.
4. Building water supply systems: Used in residential buildings, hotels, schools and commercial facilities for automatic water level management.
5. Agricultural irrigation systems: Suitable for irrigation tanks, farm water storage systems and greenhouse water supply control.
6. Industrial liquid control: Applied in cooling water tanks, process water systems and auxiliary liquid storage equipment.
7. Drainage and sewage systems: Used in basements, sump pits, wastewater tanks and drainage pump control applications.
Technical Date
| Operating range(△ U) | 190-260VAC, 340-460VAC |
| Rated frequency(f) | 50/60Hz |
| Output contacts | 1 C/O, 8A, 2000VA, Cosφ=1 |
| Sensitivity(R(kΩ)) | Adustable 5-50kΩ |
| Ambiant temperature | -5~+50°C |
Wiring Diagram
Dimensions
