4HP Doyin 4SDM3/40 AC Controller (DYM-S04)

The Doyin 4SDM3/40 DYM-S04 Controller is the most powerful single-phase pump controller in the Doyin DYM range, designed to manage and protect the 4HP 4SDM3/40 submersible pump. It provides multi-layer automated protection for deep, high-demand borehole installations.

Key Features & Benefits

• 4HP High-Power Calibration — Built specifically to handle the electrical demands of the 4HP motor
• Advanced DYM-S04 Protection Suite — Comprehensive fault detection including dry-run, overload, voltage, and phase failure
• Automatic Fault Shutdown & Recovery — Instantly responds to faults and resumes normal operation when conditions clear
• Industrial-Strength Enclosure — Heavy-duty housing withstands outdoor, borehole-site conditions year-round
• Protects Your Biggest Pump Investment — Ensures the deep-well, high-lift 4SDM3/40 pump runs at maximum efficiency and longevity
• Easy Status Monitoring — LED indicators provide at-a-glance operational feedback

Why Choose the Doyin DYM-S04 Controller (4HP)?

• Complete protection for your highest-capacity single-phase pump
• Critical for deep boreholes where dry-run events are more likely
• Matched Doyin engineering ensures accurate protection thresholds
• Reduces emergency call-outs and expensive motor replacements

Applications
Very Deep Boreholes — Protection for pumps installed at 250M+ borehole depths
Large Estates & Apartments — High-volume water supply management for multi-unit properties
Commercial Agriculture — High-lift borehole systems for large farms and irrigations schemes
Water Supply Projects — County and NGO water infrastructure requiring reliable automated control