Data Sheet for Product

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Siemens Electromotoric actuators CA1N4505en
Smart Infrastructure 2021-09-20
Function / mechanical design
The actuator is driven by a 3-position signal from the controller and generates a rotary
motion which is transferred via a driver to the valve.
These electromotoric actuators require no maintenance. They have a reversible
asynchronous motor which drives the main shaft via spur gears and a self-locking worm
gear, which accommodates the rectangular shaft of the butterfly valve. The worm shaft
is fitted with a direct-acting manual adjuster.
The actuators are supplied with a 90° angle of rotation suitable for use with Siemens
butterfly valves. During automatic operation, rotation is limited by two built-in non-
adjustable end-switches.
The direction of rotation of the actuator can be reversed (refer to «Commissioning»,
page 5). To prevent the temperature inside the housing from falling below the dewpoint
temperature, the actuators are supplied with a built-in heating element (AC 230 V,
power consumption 5 W).
4505Z37
1
2
4
3
4505Z38
1
2
4
3
1 Position indication
2 Terminal compartment
3 Motor
4 Manual adjuster
SEZ31.1
Auxiliary module
4505Z10
In the presence of a 3-position signal, the auxiliary module
pulses the actuator. The output shaft rotates by approximately 2°
with each pulse. The pulse-to-pause ratio is continuously
adjustable and can therefore be used to achieve longer running
times for an angle of rotation of 90° (refer to «Commissioning»,
page 5).
Engineering notes
The actuators must be electrically connected in accordance with local regulations and
with the connection diagrams.
Regulations and requirements to ensure the safety of people and property must
be observed at all times.
SQL36E...
Accessory for
SQL36E65
SQL36E110
SQL36E160
Electrical installation