Duwan Environmental LB-05 Leak Protection Device

Jiangsu Du'an LB-05 AC220V 5A leakage protector

　1.Overview

Submersible Pump Leak Protection Relay, also known as a Miniature Comprehensive Protection Device, is specifically designed for detecting the water-sensitive resistance and motor temperature signals inside the submersible pump..Sensor utilizes electrode sensors.When a leak occurs within the pump housing or an abnormal temperature is detected.,Controller relay will emit the corresponding control signal,For staff to address the leak in the pump.The controller implements a series of anti-interference measures in its circuit design.,It operates reliably in environments with severe electromagnetic interference..

　　2.Feature Description

Protectors are used to detect the resistance and temperature signal of water sensitivity inside the submersible pump.PTCOr temperature switch).When the resistance of the water sensitivity inside the submersible pump falls below the given value,Relay operation;After power failure, fault exclusion, and re-powering, the protector resumes operation..When a temperature signal is detected as an open-circuit signal or with a high resistance,Relay application indicator alarm protector,Simultaneous operation of the fault relay.

　LB-05Model (Default Product):Normal,Fault signal output is normally open,When power is disconnected or input signal fails,Common Open Signal to Common Closed Signal.

　LB-09Model:Normal,Fault signal output is a normally closed signal,When power is disconnected or the input signal fails,Change normally closed signal to normally open signal.

Panel indicator lights can display alarm types separately.,The reset button can manually reset faults; the water sensitivity resistor is set according to standard specifications..Customers with special requirements may contact in advance..

　　3.Product Panel Description

Overheating/P:Winding Overheating Indicator,Normal, not illuminated,Red light indicator for pump overheating fault.

Leakage/S:Oil chamber leakage indicator,Normal, not illuminated,Red light illuminates when the pump oil chamber leaks..

Reset/R:Reset Button,When a fault occurs, the protector will lock.,Reset by pressing the reset button manually..

Power Supply/L:Power Indicator,Power on, green light,Green light is on as soon as the protector is powered..

4.Technical Specifications

Input Signal:

Leakage Input:Resistor signal or normally open signal,Water-sensitive resistance ≤30KΩ.

Overheated input:PTCResistor signal or normally closed signal.

Sensor Power Supply:DC12V

Signal Control:Responsive speed20mS,Backlash control ±5%

Ambient Temperature:-20℃~70℃

Relative Humidity:≤95%RH,No condensation,Non-corrosive gas areas

Operating Voltage:220V/50HZ

Controller power consumption:≤ AC 2w

Fault Output Capacity:5A/AC220V 5A/30VDC

Controller dimensions:48mm*80mm*120mm

Installation Method:DIN35Guide rail

Weight:0.3kg

　　5.Wiring Terminal Description:

　　1.Terminal1、2（L N）:

Power Supply for Protectors220V 50HZ,Protect the protector by connecting to the power source; panel "Power"/LGreen light.

　　2.Terminal3、4（S-IN）:

Leakage Input Signal for Pump,General pumpP31 P32Signal Wire.Detectable pump oil chamber, junction box, motor cavity, humidity electrodes, or switch output signals,Signal is normal,Leak/SLED indicator not illuminated,When the electrode or switch signal is abnormal,Leakage/SThe indicator light is red..

　　3.Terminal5、6（P-IN）:

Pump Overheat Input Signal,General pumpP11 P12Signal Wire.Detectable for pump winding, bearing, and stator placementPTCResistor or normally closed switch quantity output signal.Signal normal,Overheating/PThe indicator light is not illuminated.,When the signal is abnormal,"Overheating/P"The indicator light is red..

Special Note:When no overheating signal is present,Short-circuit with wire5 6Terminal.4.Terminal7、8（Out）:Total Fault Output,Capacity5A/220VAC 5A/30VDC。