Caleffi 656302 Thermal Actuator with Manual Override

Normally closed thermal valve actuator with a manual opening knob and local position indicator.

Model / SKU: 656302
Category: Heating & Ventilation
Product type: Thermal valve actuator
Role: Actuator / load

Control & power

Control type: Switched power
Power supply: 230 V AC

Switch the 230 V AC supply using a suitable heating relay output; account for the stated starting current.

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

Unpowered state: Normally closedSource ↗
Starting current: Up to 1 ASource ↗
Enclosure: IP40Source ↗
Cable: 0.8 mSource ↗
Ambient temperature: 0–50°CSource ↗

Selection & installation notes

Only the listed compatible Caleffi valves and manifolds are covered. Local position indication is not an electrical feedback output.

Sources & documentation (1)

Caleffi 656302 — manufacturer documentation ↗Reviewed Nov 5, 2026