Shanghai 3S Global Company Limited

Stainless Steel Pump Controller: IP55 Rated & 4kV Lightning Surge Protection

Stainless Steel Pump Controller,Salt Spray Corrosion Control Panel,Industrial Water Pump Starter,Three Phase Pump Protector

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Stainless Steel Pump Controller: IP55 Rated &4kV Lightning Surge Protection

Stainless Steel Pump Controllers: IP55 Rated &4kV Lightning Surge Protection

Stainless Steel Pump Controller: IP55 Rated & 4kV Lightning Surge Protection

Product Category : Intelligent Pump Controller - Outdoor Lightning-proof Pump Box

Model Range: 3S-S31-040 / 3S-S31-075 / 3S-S31-110 / 3S-S31-150 / 3S-S31-185 / 3S-S31-220 / 3S-S31-300

Applicable Power: 4.0-30kW

Core Components: ST microcontroller, HongFa relays, CHINT MCB/AC contactor

Startup Method: DOL (Direct On Line)

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

Remote Control: RS485 (Modbus RTU), integration with PLC, BMS, SCADA, DCS, and HMI systems

Protection Degree: IP55, 360° water-resistant tested

Surge Protection: Tested to withstand 5 kA lightning surge (8/20 µs waveform)

Applications: Pumping systems, Seawater desalination, Municipal drainage, Outdoor rainwater collection

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Core Application & Overview

Outdoor main pumps at ports and terminals, water supply for coastal chemical plants. The stainless steel automatic single water pump controller has a stainless steel enclosure resistant to salt spray corrosion, suitable for all-weather outdoor harsh environments, and supports RS485 industrial protocol integration.

High Protection Rating, All-Metal Anti-Corrosion Enclosure

The entire series is equipped with a stainless steel enclosure as standard, featuring the IP55 three phase pump control panel's protection level. It effectively resists water and dust, and withstands high-temperature sunlight and acid rain erosion.

Dual Waterproof PCB for Long-Term High-Humidity Environments

PCB with dual-layer waterproofing, designed for long-term operation in high-humidity environments. The stainless steel automatic single water pump controller features triple-proof coating and in-house developed waterproof layer, validated through 70°C / 95% RH temperature & humidity cycling tests in certified laboratories.

Comprehensive Abnormal Protection Mechanism

The stainless steel automatic single water pump controller integrates 17 fault protection logics, covering abnormalities such as voltage, current, and temperature.

All alarm codes can be viewed in real time on the LCD screen, and the latest 10 records are retained for easy troubleshooting.

Fault Code
Overvoltage	E02
Undervoltage	E03
Overload (Definite Time)	E22
Underload	E23
3-Phase Current Unbalance	E24
Rotor Jam Protection (Pump Stall)	E32
Overload (Inverse Time)	E34
Motor Clog Protection	E35
Open Phase	E36
Dry-run Protection	E51
4–20mA Analog Signal Error Detection (Err)	E91
Tank Overflow	A54
Input Signal Failure Protection	A59

Technical Specification

Parameter Item	Specification Description
Input Voltage	Three-Phase 220–415V
Frequency Support	50Hz / 60Hz
Power Range	4.0–30kW
Control Mode	Automatic / Manual / Timed / Remote (Optional)
Signal Input	Supports 10 types of common water level/pressure control signals (including: float switch, electrode probe, pressure switch, electric contact pressure gauge, pressure sensor, liquid level sensor, temperature sensor, humidity sensor, flow switch, remote pressure gauge)
Protection Mechanism	17 protection functions including overcurrent, undercurrent, overvoltage, undervoltage, locked rotor, blockage, frequent start-stop, no-load, signal loss, sensor error, short circuit, water leakage, open phase, three-phase unbalance, anti-rust, phase sequence and probe protection
Communication Interface	RS485 (Optional), Modbus RTU Protocol
Enclosure Material	Stainless Steel
Protection Rating	IP55
Operating Temperature	-20°C to +55°C
Installation Recommendation	Wall-Mounted Installation, Ground Wire Resistance < 4Ω

Application Case: Built for Harsh Environments

Application Type

Common Issues

3S Controller Solutions

Outdoor Main Pumps at Ports and Terminals

Severe salt spray corrosion, easy equipment damage

Stainless steel enclosure + IP55 protection + exclusive PCB waterproof technology.

The stainless steel automatic single water pump controller resists salt spray, corrosion and moisture, suitable for harsh coastal environments.

Outdoor Water Intake Pump Stations

Vulnerable to lightning strikes and grid surge impacts, leading to controller damage, relay misoperation and system shutdown

4kV surge/lightning protection design: The IP55 three phase pump control panel built-in surge protection design, combined with multi-level protection and reliable grounding, to effectively absorb and discharge overvoltage.

Dual protection for signals and power supply: Prevents breakdown of electronic components and communication failures. Reduces equipment damage and shutdown caused by thunderstorms, ensuring long-term stable operation of the system.

Frequently Asked Questions (FAQ)

Q1: What is the maximum transmission distance supported by the IP55 three phase pump control panel's RS485 communication?

A1: The RS485 communication distance can usually reach 1200 meters, and the specific distance depends on the wiring environment and cable quality. It is recommended to use shielded twisted-pair cables and avoid strong electrical interference.

Q2: Does using the controller in extremely cold environments (below -10°C) have any impact?

A2: The 3S IP55 three phase pump control panel adopts an engineering-grade design with an operating temperature range of -20°C to +55°C, and can still maintain stable and reliable operation even in harsh low-temperature environments.