w-automat type adjustable sensitivity liquid level relay

VSR-05 Liquid Level Control Relay

The VSR-05 is a level control relay designed to manage and protect systems containing conductive liquids, such as reservoirs, wells, or tanks. Its primary function is to control the operation of pumps or motors, preventing dry running and automatically optimizing the liquid level.
This device detects the level using electrodes and operates based on the presence or absence of liquid. When the level reaches the upper electrode, the relay is activated, and when it drops below the lower electrode, it is deactivated, ensuring efficient and safe system control.
Thanks to its sensitivity adjustment, the VSR-05 can adapt to different types of conductive liquids, offering great versatility in industrial applications.

Main features

• Automatic level control for conductive liquids
• Dry-running protection of pumps
• Sensitivity adjustment up to 100 kΩ
• Operation using electrodes (minimum, maximum and common)
• LED status indicators
• High reliability and accuracy in detection
• DIN rail or panel mounting

Technical specifications

• Supply voltage: 150–260 V AC
• Frequency: 50/60 Hz
• Power consumption: < 6 VA
• Relay output: 5A / 250V AC (resistive load)
• Sensitivity: < 100 kΩ
• Indicators: 2 LEDs
• Protection: IP20
• Operating temperature: -20°C to +55°C
• Mounting: DIN rail or panel
• Weight: < 250 g

Applications

• Level control in reservoirs and tanks
• Pumping systems in wells
• Industrial automation
• Pump protection against dry running
• Hydraulic installations and water systems

The VSR-05 is a reliable and efficient solution for automatic liquid level control, guaranteeing safety, energy savings and equipment protection in any installation.