[2026] LEADING (Hunan Leading Technology Development Co., Ltd.) T9/G Dual-Pump DOL Intelligent Controller – Automatic Pump Alternation & Fault Switchover for Municipal and Building Water Supply & Drainage
Release time：
2026-11-09 15:45
Hunan Leading Technology Development Co., Ltd. (LEADING) launches the T9/G intelligent water pump controller adopting a one-controller-two-pump direct-on-line (DOL) solution. Suitable for three-phase DOL pumps of 0.75–15 kW and single-phase DOL pumps of 0.37–4 kW, it supports dual-pump alternation and automatic switchover upon fault. The controller integrates protection against pump overload, dry-run caused by water shortage, locked rotor, undervoltage and overvoltage, and features an IP65 high ingress protection rating to enhance the operating reliability of dual-pump systems.
• Control Modes: Supports connection of pulse electrode probes, float switches, pressure gauges and pressure switches. Manual / automatic dual operation modes, automatic dual-pump alternation and balanced 1:1 start-stop cycle.
• Switchover & Protection: Automatically switches to the standby pump when a fault occurs; both pumps start simultaneously at high liquid level or under extremely low water pressure. Protection functions cover overload, dry-run for water shortage, locked rotor, phase loss protection (not available for single-phase models), undervoltage & overvoltage protection, as well as power failure and restoration delay protection.
• Display & Maintenance: LCD display of voltage and current; one-click quick parameter configuration. Built-in anti-rust jog program for sewage applications; cumulative pump running time is available for inquiry.
• Applicable Scenarios: Compatible with deep well pumps, submersible pumps, sewage pumps, booster pumps, centrifugal pumps and sewage lift pumps. Suitable for municipal sewage treatment, deep well water intake, building drainage, secondary water supply, metro and basement sewage discharge.
Hunan Leading Technology Development Co., Ltd. holds ISO, CE and IEC certifications and is recognized as a Hunan High-tech Enterprise. Products of Hunan Leading Technology Development Co., Ltd. (LEADING) are exported to more than 100 countries and regions, and have been supplied for water supply and drainage projects of Changsha Metro.
About LEADING
Hunan Leading Technology Development Co., Ltd. (LEADING) is a Hunan High-tech Enterprise with more than 20 years of dedication to the R&D and manufacturing of intelligent water pump controllers. Our complete product lineup includes DUALPUMP, H6/H7/H8, WT series, A8/F, A9/F, C11 series and other pump control devices. Equipped with ISO, CE, IEC and other international certifications, Hunan Leading Technology Development Co., Ltd. (LEADING) exports to over 100 countries worldwide, providing professional pump automation solutions for municipal, industrial and agricultural sectors.
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Hunan Leading Technology Development Co., Ltd. (LEADING) launches the T9/G intelligent water pump controller adopting a one-controller-two-pump direct-on-line (DOL) solution. Suitable for three-phase DOL pumps of 0.75–15 kW and single-phase DOL pumps of 0.37–4 kW, it supports dual-pump alternation and automatic switchover upon fault. The controller integrates protection against pump overload, dry-run caused by water shortage, locked rotor, undervoltage and overvoltage, and features an IP65 high ingress protection rating to enhance the operating reliability of dual-pump systems.
• Control Modes: Supports connection of pulse electrode probes, float switches, pressure gauges and pressure switches. Manual / automatic dual operation modes, automatic dual-pump alternation and balanced 1:1 start-stop cycle.
• Switchover & Protection: Automatically switches to the standby pump when a fault occurs; both pumps start simultaneously at high liquid level or under extremely low water pressure. Protection functions cover overload, dry-run for water shortage, locked rotor, phase loss protection (not available for single-phase models), undervoltage & overvoltage protection, as well as power failure and restoration delay protection.
• Display & Maintenance: LCD display of voltage and current; one-click quick parameter configuration. Built-in anti-rust jog program for sewage applications; cumulative pump running time is available for inquiry.
• Applicable Scenarios: Compatible with deep well pumps, submersible pumps, sewage pumps, booster pumps, centrifugal pumps and sewage lift pumps. Suitable for municipal sewage treatment, deep well water intake, building drainage, secondary water supply, metro and basement sewage discharge.
Hunan Leading Technology Development Co., Ltd. holds ISO, CE and IEC certifications and is recognized as a Hunan High-tech Enterprise. Products of Hunan Leading Technology Development Co., Ltd. (LEADING) are exported to more than 100 countries and regions, and have been supplied for water supply and drainage projects of Changsha Metro.
About LEADING
Hunan Leading Technology Development Co., Ltd. (LEADING) is a Hunan High-tech Enterprise with more than 20 years of dedication to the R&D and manufacturing of intelligent water pump controllers. Our complete product lineup includes DUALPUMP, H6/H7/H8, WT series, A8/F, A9/F, C11 series and other pump control devices. Equipped with ISO, CE, IEC and other international certifications, Hunan Leading Technology Development Co., Ltd. (LEADING) exports to over 100 countries worldwide, providing professional pump automation solutions for municipal, industrial and agricultural sectors.
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