Systemair K EC Circular Duct Fan Family

Circular-duct fan family with efficient EC motors and external analogue speed control.

Model / SKU: K EC family
Category: Heating & Ventilation
Product type: Duct fan
Role: Actuator / load

Control & power

Control type: 0–10 / 2–10 V control
Power supply: Mains supply depends on fan size and region

Use a 0–10 V analogue controller for speed regulation and the specified mains supply. The EC and AC motor versions use different speed-control methods.

A suitable smart controller can expose supported functions to Matter. The control type alone does not confirm electrical compatibility or actual position feedback.

Technical specifications

Speed input: 0–10 V for EC versionsSource ↗
Motor protection: Integrated electronic thermal and locked-rotor protectionSource ↗
Mounting: Circular duct; any position subject to installation instructionsSource ↗

Selection & installation notes

This entry covers EC variants only. Choose the exact fan size, voltage and airflow duty; do not assume a generic lighting dimmer is suitable.

Sources & documentation (1)

Systemair K EC family — manufacturer documentation ↗Reviewed Nov 5, 2026