SC 4i A

Controller designed for connecting up to 4 physical buttons or switches into the Spectoda ecosystem.

SC 4i A is an input controller designed for connecting up to 4 physical buttons or switches into the Spectoda ecosystem.

Its compact dimensions allow integration into existing electrical wiring, for example into a wall box under a switch. This makes it possible to turn a standard rocker switch into a smart switch connected to the Spectoda system.

What it is used for

Control of lighting scenes using standard wall buttons
Local control points in commercial and residential installations
Electrical retrofit without changes to data infrastructure

Key features

4 phase inputs (SW1 to SW4)
Power supply 210-240 V AC, 50/60 Hz
Spectoda wireless platform (ESP NOW, 2.4 GHz)
Typical consumption approx. 0.6 W without load
Compact design for mounting in an electrical installation box

Technical specifications

Parameter	Value
Power supply	210-240 V AC, 50/60 Hz
Control platform	ESP32
Number of inputs	4 phase inputs
Consumption	typically approx. 0.6 W without load
Operating temperature	10 degC to 45 degC
Relative humidity	20% to 65%
Mounting	electrical installation box

Mechanical specifications

Parameter	Value
Controller dimensions	`40.2 x 36 x 16 mm`
Enclosure dimensions	`43 x 36 x 17 mm`
Enclosure material	`PETG`

Connection terminals

Terminal	Function
`N`	neutral power conductor
`L`	phase conductor for device power
`Lsw`	phase output for the common button contact
`SW1`	button input 1
`SW2`	button input 2
`SW3`	button input 3
`SW4`	button input 4

Wiring principle: each button is connected between Lsw and the corresponding SWx input.

Wiring diagram

Documentation

More technical data is available from:

SC 4i Datasheet 2026.pdf

SC 4i - User manual [CZ].pdf

SC 4i - CE - 2026.pdf