Shanghai 3S Global Company Limited

Iron Duplex Pump Controller for Food Plant & Sewage - 4-15kW 3 Phase

Sewage Duplex Control Panel,Iron Enclosure Pump Starter,3 Phase Dual Pump Controller

Product Category

Iron Duplex Pump Controller for Food Plant & Sewage - 4-15kW 3 Phase

Iron Duplex Pump Controller for Food Plant & Sewage - 4-15kW 3 Phase

Product Category : Dedicated Pump Controller - Submersible Pump Controller

Model Range: 3S-I32-040 / 3S-I32-075 / 3S-I32-110 / 3S-I32-150

Power Adaptation Range: 4.0kW to 15kW

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

Number of Controlled Pumps: 2 pumps

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

Control Mode: Manual / Automatic / Timed / Remote RS485

Protections: 17 types protection

Working Environment: -20℃~+55℃; 20 to 95% RH

Protection Degree: IP55, PCB moisture-protected, 360° water-resistant tested

IEC Standards Tested: 60529, 61000, 60068, 60950, 60335

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Product Description

Standby pump systems in food processing plants, semi-outdoor sewage treatment. Featuring an iron box structure for splash and dust protection, it supports dual-pump rotation and Modbus protocol docking with local central control.

Robust Construction & Protection

Iron Box Housing with High Protection Level

The automatic duplex water pump starter housing adopts cold-rolled steel plate assembly and welding technology, with an industrial-grade anti-corrosion coating on the surface. It has excellent moisture and dust resistance, adapting to semi-outdoor environments such as control central rooms and factory areas, and enhancing the overall operational stability and service life of the equipment.

Triple Protection for Core Circuits

The circuit board is reinforced with industrial-grade three-proof paint and 3S independently developed protective coating, effectively enhancing the moisture resistance and corrosion resistance of core areas such as the main control chip and relay module, and improving long-term reliability.

Safety Protection

The automatic duplex water pump starter supports 17 protection functions including overcurrent, undercurrent, overvoltage, undervoltage, locked rotor, blockage, frequent startup/shutdown, no-load, signal loss, sensor error, short circuit, water leakage, phase loss, three-phase imbalance, rust prevention, phase sequence, and probe protection; the iron box is equipped with a door lock to prevent misoperation and supports system access password setting

Technical Parameters

Item	Description
Supply Voltage	3-Phase AC 220–415V, 50/60Hz, compatible with industrial power grids in multiple countries/regions
Controlled Pump Type	Dual-pump control, supporting alternate rotation, main-standby switching, and parallel operation
Power Range	4.0kW–15kW
Control Modes	Automatic / Manual / Timed / Remote Control (RS485 optional)
Signal Input	This automatic duplex water pump starter Supports 10 common signal devices including float switches, electrode probes, pressure switches, electric contact pressure gauges, pressure sensors, liquid level sensors, temperature sensors, humidity sensors, flow switches, and remote pressure gauges
Cabinet Material	Cold-rolled steel plate welding, industrial anti-corrosion coating
Installation Method	Wall-mounted, grounding resistance < 4Ω
Operating Environment	-20°C ~ +55°C, suitable for humid/dusty/semi-outdoor environments
Safety Protection	The 3 phase iron duplex intelligent pump controller supports 17 protection functions including overcurrent, undercurrent, overvoltage, undervoltage, locked rotor, blockage, frequent startup/shutdown, no-load, signal loss, sensor error, short circuit, water leakage, phase loss, three-phase imbalance, rust prevention, phase sequence, and probe protection; the iron box is equipped with a door lock to prevent misoperation and supports system access password setting

Application Case Examples

Application Type

Key Issues

3S Controller Solutions

Standby pump system in food processing plants

Large water consumption fluctuations cause frequent pump startup/shutdown and wear;

High requirements for equipment stability and hygiene;

Rapid and accurate standby pump switching is required.

Built-in signal delay startup/shutdown and frequent startup/shutdown protection to effectively reduce pump wear.

Robust and sealed protection design to ensure equipment stability and hygiene.

The automatic duplex water pump starter supports seamless automatic standby pump switching to ensure uninterrupted water supply.

Industrial cooling systems

High pressure from long-term continuous operation, single pump is prone to overheating and accelerated wear under long-term high load;

Electrical hazards such as three-phase imbalance or phase loss often occur in factory environments.

Adopts timed pump rotation strategy to realize automatic alternation of pumps during long-term continuous operation, balancing load and reducing overheating risks;

Combines current monitoring and fault alarm to prompt maintenance in a timely manner, ensuring stable operation of the circulation system and extending equipment service life.