Shelly Smart Plug - UK 13A

Ogemray SW40 25A Smart Switch for Immersion Control is a high‑current smart switch designed to control immersion heaters and other large loads up to 25A / 6000W. It integrates with the Eleven Energy app for intelligent control, including using excess solar generation to heat water once the battery is full.

Key Features

• 25A / 6kW rated output – suitable for controlling immersion heaters and other sizeable resistive loads on single‑phase supplies.
• Built‑in power metering – measures real‑time power and energy usage so you can see exactly how much electricity the immersion or load is using.
• Smart integration with Eleven Energy – controlled via the Eleven Energy app, enabling coordinated operation with Volta batteries, inverters and PV.
• Solar excess divert – can be configured so that surplus solar (once the battery is full) is automatically diverted into the immersion heater.
• Easy Bluetooth onboarding – Bluetooth connectivity allows fast and simple pairing with the Eleven app before moving to Wi‑Fi control.

Control & Connectivity

• App control: full on/off control, scheduling and automation through the Eleven Energy app.
• Scheduling: set time‑based programmes (e.g. off‑peak heating, timed boosts).
• Automation: link operation to solar production, battery state of charge or other system conditions where supported by the Eleven ecosystem.

Wiring & Installation

• Simple wiring: connect the supply live and neutral and the immersion circuit live and neutral to the device; use the switched live terminal to feed the immersion heater.
• Load type: designed primarily for resistive loads such as immersion heaters; ensure the connected load does not exceed 25A / 6000W.
• Mounting: suitable for installation near the immersion heater or consumer unit in an appropriate enclosure or pattress box.
• Installation requirements: all wiring must be carried out by a competent person, with isolation and protective devices sized according to local regulations.

Typical Applications

• Immersion heater control in homes with PV and battery storage, using surplus solar for hot water.
• Smart control of other high‑power resistive loads (within rating) such as panel heaters or electric towel rails.
• Systems where integration with Eleven Energy monitoring and automation is required for whole‑home optimisation.