Shanghai 3S Global Company Limited

Industrial Dual Pump Starter for Booster System with 17 Protections

Industrial Duplex Pump Controller,sewage pump control panel,stainless steel duplex starter,Modbus RTU controller

Product Category

Industrial Dual Pump Starter for booster system with 17 Protections

Industrial Dual Pump Starter for Booster System with 17 Protections

Product Category : Single / Three Phase Pump Controller - Three Phase Pump Controller

Model: 3S-S32-040 / 3S-S32-075 / 3S-S32-110 / 3S-S32-150

Power Range: 4.0kW / 7.5kW / 11.0kW / 15.0kW

Core Components: ST microcontroller, Hongfa relays

MCB/AC Contactor: CHINT

Rated Voltage&Frequency: Three-phase AC220-415V, 50/60Hz

Qty of Controlled Pumps: 2 pumps

Control Logic: Duty/Standby, Alternate, Simultaneous dual-pump start, Parallel alternation with load sharing, Single pump, timing

Protections: 17 types protection

Signal Compatibility: Digital, 4–20mA analog, and 0–5V analog

Pump Applications: Centrifugal pump, Multiple stage pump, Sewage pump, Transfer pump

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Advanced Protection

Suitable for backup pumps in outdoor sewage treatment plants and duplex pump rotation in coastal aquaculture farms. The stainless steel structure supports the Modbus protocol for connection to outdoor industrial central control systems.

Multiple Protections for Safe Operation

Equipped with 17 built-in operation protection mechanisms, including overcurrent, undercurrent, overvoltage, undervoltage, locked rotor, blockage, frequent start-stop, no-load, signal loss, transducer error, short circuit, water leakage, phase loss, three-phase imbalance, rust prevention, phase sequence, and probe protection.

This IP55 corrosion-resistant pump controller fully safeguards the safety of equipment and water pumps.

Power Supply & Electrical Fault Prevention: Designed to address power quality fluctuations and grid faults, providing comprehensive protection to prevent controller or pump system failures caused by unstable supply.
Protection Item No.	Definition	Configurable Range	Configured by Default & Instruction
001	Rated Input Voltage (Three-Phase)	AC220-415V	380V
002	Overvoltage Threshold (%)	100-150%	120%
003	Overvoltage Trip Delay	1-120sec	5sec
004	Overvoltage Protection Auto-Reset Time	0-120min	3min
005	Undervoltage Threshold (%)	1-99%	85%
006	Undervoltage Trip Delay	1-120sec	5
007	Undervoltage Protection Auto-Reset Time	0-120min	3min
008	Phase Failure Protection	ON/OFF	ON
009	3-Phase Imbalance Percentage	1-99%	30%
010	Three-Phase Unbalance Trip Delay	1-120sec	5sec
011	Three-Phase Unbalance Protection Auto-Reset Time	1-120min	30min
012	Phase Rotation Error	Optional (customizable)
013	Short Circuit	Non-adjustable	1sec

Integration

Wide Signal Compatibility

This stainless steel intelligent duplex water pump starter supports input from signal devices such as float switches, electrode probes, pressure switches, electric contact pressure gauges, pressure sensors, liquid level sensors, temperature sensors, flow switches, and remote pressure gauges, adapting to the control needs of different pump stations.

The stainless steel intelligent duplex water pump starter also offers an optional RS485 communication interface for easy access to upper computers or monitoring platforms.

Flexible Control Methods

The IP55 corrosion-resistant pump controller supports manual start-stop, automatic operation, and timed control. Users can flexibly select according to on-site working conditions to improve operation efficiency.

Typical Application Scenarios

Application Type

Common Issues

3S Controller Solution

Industrial Control System Integration

Pumps are prone to frequent start-stop when load fluctuates greatly, causing current impact and mechanical wear and affecting service life; integration with upper computers is required, but high requirements for data collection and remote monitoring make communication compatibility a challenge.

The stainless steel intelligent duplex water pump starter supports alternating operation of two pumps and has built-in protection against frequent start-stop, effectively balancing operation time, reducing equipment impact, and extending service life. Equipped with an optional RS485 interface, it supports the standard Modbus-RTU protocol for easy integration and remote monitoring, upgrading the system's intelligent management level.

Outdoor Duplex Pump Stations

Outdoor environments are prone to moisture, rainwater, and dust erosion, easily causing electrical faults and corrosion; harsh weather and complex environments increase the difficulty of fault detection and maintenance, affecting normal system operation.

As a professional stainless steel intelligent duplex water pump starter, it features a corrosion-resistant stainless steel shell and a double waterproof PCB with strong sealing performance, reaching the IP55 protection level to reliably cope with harsh outdoor environments.

It supports RS485 remote monitoring and alarming; the system has a self-diagnosis function to automatically report faults and reduce inspection frequency. When an abnormality occurs, it automatically switches to the backup pump to ensure continuous operation of the pump station.

Frequently Asked Questions (FAQs)

Q1: What are the grounding requirements?

A1: No additional grounding wire is required. The 3S IP55 corrosion-resistant pump controller is equipped with a built-in grounding terminal, which only needs to be connected directly to the power supply ground wire.

Q2: Is it necessary to manually set the operating current, overload, and underload protection values for the controller?

A2: There is no need to manually set the controller's operating current, overload, or underload protection values. Its self-learning function will first run Pump A automatically for 20 seconds, then switch to Pump B for 20 seconds, and automatically record the current values to U03 and U04. The default overload protection value is 120%, and the default underload protection value is 65%. At the same time, manual adjustment is supported according to the actual conditions of the IP55 corrosion-resistant pump controller and the project.