Retrofit actuator

In ventilation and air conditioning units For actuation of 2- and 3-way valves

For controllers with constant output (0…10 V / 4…20 mA) or switching output (2-point or 3-point control)

BLDC motor (brushless DC) with SUT (SAUTER Universal Technology) electronic control unit of the third generation and electronic load-dependent cut-off

Automatic detection of applied control signal (continuous or switching), operating indicator using bi-colour LED

Automatic adaptation to the stroke of the valve, between 8 and 20 mm

Low operating noise

With the built-in absolute distance measurement system, the position is always maintained in the case of power failure

The direction of operation, characteristic (linear/equal percentage), positioning time and control signal (voltage/current) can be adjusted via coding switches

Integrated forced operation can be set via coding switches (with selectable direction of operation)

Easy re-initialisation using a coding switch

Crank handle for external manual adjustment with motor cut-off

Simple assembly onto valve; spindle is automatically connected after control voltage is applied

Numerous adapters enable the unit to be fitted onto non-SAUTER valves

Electrical parallel operation of five actuators

Parameterisation option via the BUS interface

Three-piece housing made of flame-retardant yellow/black plastic and seals with type of protection IP54

Maintenance-free gearbox made of plastic; threaded spindle and gearbox base-plates made of steel

Patented actuator-valve coupling

Electrical connections (max. 1.5 mm²) with screw terminals

Two break-out cable inlets for metric cable glands made of plastic M20 × 1.5

Fitting position vertically upright to horizontal, not suspended

Nominal actuating power 1000 N