Applications

Protection and control of sewage pumps.

Main features

With open phase ,stalled ,over current , Dry run ,Over/ under voltage protection function on Both manual and auto mode . It can realize automatic control by liquid level float balls or air pressure sensors .

Optional: WIFI/4G module available . You can control the pump remotely via Mobile app with real time .

Technology parameter:

• Rated Output Power: 0.37-2 .2 kW ( Refer to the nameplate )
• Rated Operating Voltage: AC220V ( Refer to the nameplate )
• Trip response time of over current: 5 sec-5 min ( Inverse time characteristic - the higher the current , the shorter the time)
• Recovery time of under / over voltage: 2min
• Trip response time of pump stalled: <0. 1 seconds
• Trip response time of over voltage:< 15sec
• Trip response time of under voltage:< 15sec
• Trip voltage of over voltage: 115% of rated input voltage
• Trip voltage of under voltage: 80% of rated input voltage
• Dry-Run Protection Trip Time: 30 seconds
• Over current Fault Recovery Time: 1 minute
• Dry-Run Fault Recovery Time: 1 minute
• Trip response time of short circuit: <0. 1sec
• Liquid level transfer distance: ≤ 1000m
• Degree of protection: IP65
• RS485 transmission distance: within 1200 meters ( using twisted-pair shielded cable STP-120Ω (for RS485 & CAN) one pair 20 AWG)
• Attention: In case of thunderstorm,please be sure to turn off the power.
  Open phase only support in three phase model

This product is suitable for normal working environment , avoid installation in the following environment:

TROUBLE SHOOTING GUIDE

Dual Pump Controller is an intelligent control device designed to manage and coordinate the operation of two pumps in a system, ensuring continuous fluid supply and improved system reliability. It is widely used in water supply systems, HVAC systems, industrial circulation, wastewater treatment, and fire protection applications. The controller can operate in multiple modes, including automatic alternation, simultaneous operation, standby backup, and fault alarm protection. When one pump fails or requires maintenance, the system automatically switches to the other pump to maintain uninterrupted operation. A typical dual pump controller includes a control panel, PLC or microprocessor unit, sensors for pressure or level detection, relay outputs, and a user interface for configuration. It continuously monitors system conditions such as pressure, flow, or liquid level, and adjusts pump operation accordingly. 

Advanced models support remote monitoring, overload protection, dry-run protection, and timed alternation to balance pump usage and extend equipment lifespan. The main advantages of a dual pump controller include improved operational stability, energy efficiency, reduced manual intervention, and extended pump service life. Proper installation and parameter configuration are essential to achieve optimal performance in different application environments.