BAOMAIN Liquid Level Control Relay 5A 1-SPDT 24-240V AC/DC TBL7-B1

TECHNICAL PARAMETERSSupply Terminals：A1-A2Voltage Range: AC/DC24V-240V,50-60HzBurden: max. 2VATime Range: -15%;+10% Interelectrode Voltage: max. AC10V Interelectrode Current: AC<0.1mAResponse Time: max. 400msCable length: max. 100mOutput: 1 x SPDT; Current Rating: 1x5A(AC1); 250VAC/24VDCMin. breaking capacity DC: 500mWMechanical Life: 1x10,000,000 cyclesElectrical Life(AC1): 1x100,000 cyclesReset time: max.200ms Operating Temperature: -20°C ~ 55°C / -4°F ~ 131°FStorage Temperature: -35°C ~ 75°C / -22°F ~ 167°FProtection Degree: IP20Operation Degree: AnyPollution degree：2 Installation: DIN rail mounting or Screw mountingMax.cable (size): Solid wire max.1x2.5 or 2x1.5/with sleeve max. 1x2.5(AWG12) FUNCTION FEATURESRealization of Wide range of power supply AC/DC24-240V 50/60Hz Relay status is indicated by Red LED: Water-supply and Drainage. 1-MODULE,DIN rail mounting. Ultra-small size,only 18mm width,mounted with 35mm DIN Rail . WIDELY APPLICATIONThe Electronic Liquid Level Controller is used for Controlling of ordinary purified water or sewage water, such as water tank, water pond, water pool ,Etc.

• [1-SPDT & Universal Voltage] Equipped with a single-pole double-throw (1-C) contact. Supports an ultra-wide power supply range of AC/DC 24V-240V (50/60Hz), ensuring seamless integration into various industrial pump panels and residential water systems without extra transformers
• [Dual Mode: Water-Supply & Drainage] A specialized liquid level controller designed for two main applications: Automatic Tank Filling (Water-Supply) or Automatic Sump Pumping (Drainage). It maintains the liquid level between the high and low electrodes with industrial precision
• [Three-Electrode Monitoring System] Works with a three-electrode probe system (High, Low, and Common) for stable level detection. Features a safe interelectrode voltage (max. AC 10V) and ultra-low current (<0.1mA) to prevent probe electrolysis and ensure long-term sensing reliability
• [Rapid Response & Long-Distance Support] Provides a fast response time of max. 400ms to prevent pump dry-running or tank overflowing. Supports sensor cable lengths up to 100 meters (328ft), making it ideal for deep wells, remote reservoirs, and large-scale pool management
• [Ultra-Slim 18mm DIN Rail Mount] Occupies only one module width (18mm) on a standard 35mm DIN rail, saving critical space in crowded control cabinets. The Red LED indicator provides clear visual feedback of the current pumping or filling status