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Intelligent Shutter Control: RFJA-52B-SL/ISC and RFJA-52H/ISC

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Modern house at dusk with closed roller shutters — intelligent shutter control

Smart control of blinds, roller shutters, and awnings is now a core part of building automation — not a nice-to-have extra. The right shutter actuator gives you precise positioning, quiet everyday control, and a clean fit into a wider smart-home system.

iNELS is adding two wireless shutter switch units to the shading automation range: the RFJA-52B-SL/ISC (behind the existing switch or in the motor housing) and the RFJA-52H/ISC (Plug & Play on the motor). Both belong to the iNELS Wireless ecosystem.

This guide explains which model to specify, what they can do, and how they connect to the iNELS app, eLAN, Apple HomeKit, Home Assistant, and Google Home.

Two models for two installation jobs


The RFJA-52 series solves the same control problem in two mechanical ways: retrofit into existing wiring, or a direct motor-side install outdoors.

RFJA-52B-SL/ISC — behind the switch or in the box

Choose the RFJA-52B-SL/ISC when you need to keep the existing wall switch, mounting box, or motor-drive housing. The compact body is built for renovations and wireless retrofits where space is tight and new cabling is expensive.

It is the practical choice for apartments, villas, and commercial interiors that already have wired shutter motors.

Why specify it

• Installs behind the existing switch, in a mounting box, or inside the motor drive housing

• Suited to retrofit and renovation projects

• Mutually interlocked output contacts for safer motor direction control

• Wireless integration with the iNELS ecosystem

RFJA-52H/ISC — on the shutter motor

Choose the RFJA-52H/ISC when the actuator should sit on the motor itself. It uses STAK3/STAS3 Plug & Play connectors and a compact SLIM body, so outdoor and motor-head installs stay simple and take less space around the drive.

It is compatible with motors from a wide range of manufacturers, including Somfy, elero, Kaiser, Nienhaus, Becker, Geiger, and A-OK.

Which RFJA-52 should you specify?

• Existing wall switch or tight mounting box — RFJA-52B-SL/ISC

• Direct motor-head or outdoor install — RFJA-52H/ISC

• Mixed project (some rooms retrofit, some new motors) — use both in the same iNELS Wireless system

Need a certified partner to survey the site? Find an iNELS installer in your region.

Everyday comfort: position, tilt, and scenes

RFJA-52 units do more than open and close. Once they are in the iNELS Wireless system, users can:

• Set accurate blind height and slat tilt

• Save favourite positions

• Run time-based schedules

• Recall a whole-home scene with one button

• Control locally or remotely from the iNELS app

Button behaviour is simple: a short press tilts the slats; a long press runs automatic full movement.

Technical highlights

• Wireless control of blinds, roller shutters, and awnings

• Up to 25 wireless channels

• Range up to 200 m in open space, with optional repeater support

• 3 A switching capacity

• Durable AgSnO₂ relay contacts

• Works with iNELS Wireless controllers and system elements

Repeaters extend range on larger villas, hotels, and commercial floors where the central unit is far from the facade.


Control from the iNELS app

When the RFJA-52 series is part of an iNELS installation, the same app used for lighting and climate can raise, lower, and scene-control the shutters — at home or away. Daily schedules (morning open, afternoon solar shading, night close) sit next to the rest of the building logic instead of in a separate remote.

HomeKit, Home Assistant, and Google Home

Through an eLAN gateway, iNELS Wireless can join a broader smart-home stack: Apple HomeKit, Home Assistant, and Google Home. Shutter movement can then share scenes with lighting, heating, and sensors — for example close on high solar gain, or open when a room is occupied.

Read more on iNELS shading automation, or talk to a certified installer about a site survey.


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