Auto Change-Over Switch: ACO100D
Automatic Changeover Switch between Utility Power and Generator
Take full control of your household or Office power supply with a smart, durable, and maintenance-free electronic change-over switch engineered for modern homes, estates, and small office facilities. Built to eliminate the need to manually operate power transfer between the public power utility and portable power generators.

About The ACO100 Deluxe Auto Change-Over Switch
The ACO100D is an advanced electronic automatic changeover switch designed to replace traditional manual changeover switches with an intelligent and long-lasting solution. It automates your power backup operation using electronic sensing and adaptive logic, guaranteeing consistent automatic operation without human intervention.
The ACO100D is ideal for:
Residential users
Estates & property managers
Small Office
Wherever power may not be interrupted, the ACO100D is a reliable ally.
Key Features & Benefits
Defaults To The Generator at Power Failure
At power failure, the user only has to start the generator. The ACO100D automatically picks up the power and connect the load.
Automatically picks Up The Mains at Power Restoration
Automatically picks up the mains at power restoration. If the generator was running, the ACO100D would connect the load to the mains and shut down the generator.
Real-Time Notifications
The ACO100D sounds a 10-second siren at power restoration.
Adaptive Pump Control Logic
Reduces unnecessary pump cycling, saves energy, and extends pump lifespan.
Undervoltage, Overvoltage & Surge Protection
Built to withstand irregular voltage and harsh electrical environments common in Nigeria and other developing regions.
Rugged ABS Plastic/ Industrial Housing
Dust-proof, moisture-resistant enclosure for long-term endurance.
Plug-and-Play Installation
Designed to integrate easily with existing pumps, piping, and electrical systems.
Technical Specifications
Parameter
Details
Input Voltage
220–240V AC
Max Load
Based on pump rating (customizable)
Sensor Type
Electrical water-level probes (high accuracy)
Indicator System
Multi-stage LED display
Operating Temp
−10°C to 65°C
Housing Material
Reinforced ABS Plastic industrial enclosure
Safety
Surge protection, undervoltage and overvoltage protection.
Dimensions
Compact wall-mountable design: 67 x 67 x 41
How It Works
Sensors detect tank water level.
Controller activates the pump only if power level is healthy.
After power restoration, Panic Mode refills instantly if tank not already full.
Pump switches off automatically when the tank is full.
Why Choose Our Products?
Over 20 years experience in electronics design & development
Devices designed for African power and environmental conditions
Strong R&D foundation (circuit design, PCB, firmware, QC)
Field support and installer network
Industrial-grade components used across all products
We are committed to delivering electronic solutions built to last.
User Feedback
“Our estate no longer experiences tank drying issues. SmartWater-X works flawlessly despite unstable power.”
Facility Manager, Lekki
“I replaced three faulty float switches in one year. This controller has worked perfectly for 18 months.”
Homeowner, Lagos
Pricing & Purchase Options
Single Unit
Contact for pricing
Bulk Purchase / Distributors
Special rates available
Installation Service
Optional
Warranty
1-year manufacturer warranty + extended plans
