Description
Converting excess solar generation into domestic utility tasks.
SAJ Smart Wi-Fi Plug is a 16 A / 3,680 W heavy-duty smart domestic energy socket with real-time power metering, engineered to automate household appliances (such as immersion heaters and pool pumps) based on rooftop solar surplus.
16 A / 3,680 W Heavy Domestic Switching
Safely switches high-draw domestic loads including electric immersion heaters, pool pumps, and space heaters.
100% Automated Solar Surplus Activation
Turns on connected appliances automatically only when rooftop solar generation exceeds household baseline consumption.
Individual Appliance Energy Telemetry
Measures real-time power (Watts), voltage, and cumulative energy (kWh) inside the SAJ eSolar app.
Overload & Thermal Shut-Off Protection
Automatically cuts power during overcurrent or overheating events to protect home electrical circuits.
More product details
Exporting surplus solar power for low feed-in tariffs wastes valuable energy. The SAJ Smart Wi-Fi Plug acts as an automated solar diverter for standard plug-in home appliances.
- eSolar app logic commands the plug to turn on whenever solar export exceeds a user-defined threshold (e.g. >1.5 kW).
- Automatically powers domestic immersion heaters or pool circulation pumps during peak midday solar generation.
- Replaces expensive dedicated hardwired solar diverter units for portable and standard domestic loads.
Precision appliance energy metering with multi-tier electrical safety.
Handling heavy resistive loads up to 3,680 W requires robust internal relays and continuous thermal monitoring. Heavy-duty 16 A mechanical relay designed for continuous high-draw domestic resistive heating loads. Internal thermal sensors disconnect load automatically if internal contact temperature rises abnormally. Child-safety shutters and V0 flame-retardant plastic housing provide high domestic protection.
Pairs with the elekeeper energy management ecosystem
The plug integrates into the broader SAJ energy management layer. Appliances coordinate alongside solar generation, storage batteries, and heat pumps.
Fits standard wall outlets with compact plug-through design
Compact housing plugs straight into existing wall sockets without blocking adjacent outlets. Installation requires no electrical panel wiring.
Takes direct Wi-Fi links without extra automation gateways
Direct Wi-Fi connectivity pairs with iOS and Android devices. Remote switching and consumption monitoring run without separate hub hardware.
Technical data
Diverting surplus rooftop solar into domestic hot water and heavy appliances with zero electrical rewiring.
16 A smart Wi-Fi power plug with automated solar surplus appliance switching.
Integrating household appliances directly into the SAJ eSolar ecosystem, this smart power plug handles up to 16 A (3,680 W) of continuous domestic load. It monitors individual appliance power draw in real time and automatically triggers immersion heaters, pool pumps, or air dehumidifiers when rooftop solar generation exceeds household baseline demand.
- High Switching Load
- 16 A / 3.68 kW
- Smart Trigger
- Solar Surplus
- Energy Metering
- Real-Time
- Zero Wiring
- Plug-and-Play
Key data (as published)
- Supply voltage / frequency
- 100–240 V~, 50/60 Hz
- Functions
- Energy monitoring, remote on/off control, schedules/timers
- Connectivity
- Wi-Fi, controlled from smartphones/tablets (elekeeper ecosystem)
- Ecosystem
- Named on the EK90 HS5 datasheet as part of the eManager 5.0 / elekeeper 5.0 whole-home energy management
Control & user functions
- Supply voltage
- 100–240 V~
- Supply frequency
- 50/60 Hz
- Device switching
- Remote on/off
- Time control 1
- Schedules
- Time control 2
- Timers
- Energy data
- Consumption monitoring for the connected appliance
- Client devices
- Smartphones and tablets
- Energy platform
- SAJ elekeeper ecosystem
Project fit
Where this model fits.
Scenarios that show which projects the SAJ Smart Wi-Fi Plug belongs in, what to verify before quoting, and when another model is the better pick.
Residential Solar Optimization for Electric Water Heaters & Pool Pumps
Single-family homes with an SAJ hybrid inverter seeking to direct midday solar surplus into an electric immersion heater or pool filter without rewiring the breaker panel.
Plugs directly into the existing wall socket, links to the home Wi-Fi, and executes automated solar surplus switching from the eSolar app.
- Confirm this model against the adjacent rating in the same family
Documents
SAJ Smart Wi-Fi Plug Datasheet (EN, EU) SAJ Smart Plug Quick Guide - Elekeeper App (EN)Product questions
Can this plug handle high continuous loads like a 3 kW water heater?
Yes. Rated for 16 A continuous resistive loads (up to 3,680 W at 230 V). The plug features an industrial-grade 16 A switching relay and heavy brass pin contacts, certified to carry full 3,680 W continuous domestic heating loads safely.