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Siemens SFA21/18 Electromotoric Actuator - 400N, 18mm Stroke

Name: Siemens SFA21/18
Brand: Siemens
SKU: SFA21/18
Availability: InStock

Siemens SFA21/18 Electromotoric Actuator

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ManufacturerSiemens

Part numberSFA21/18

Force 400 N

Stroke 18 mm

Voltage AC/DC 24 V

Type Electromotoric

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400 N Force 18 mm Stroke AC/DC 24V Power Electromotoric Operation Damper and Valve Control Compact Design

Product description

The Siemens SFA21/18 is an electromotoric actuator designed for reliable operation in HVAC and building automation systems. It provides 400 N of force and an 18 mm stroke, making it suitable for controlling dampers and valves. The actuator operates on AC/DC 24V, offering flexibility in power sourcing for various installations.

This actuator is commonly used in commercial and residential building applications for controlling air dampers in VAV boxes, air handling units, and mixing dampers. Its compact design and robust performance make it a dependable choice for modulating and on/off control tasks.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens SFA21/18 actuator. We ensure access to quality industrial automation components, providing cost-effective solutions to keep your systems running efficiently.

Technical specifications

Force	400 N
Stroke	18 mm
Voltage	AC/DC 24 V
Type	Electromotoric

Common applications

HVAC Systems

Building Automation

VAV Boxes

Air Handling Units

Damper Control

Valve Actuation

Compatible systems

Siemens Building Automation Controllers HVAC Control Systems Direct Digital Controls (DDC)

Also known as

Siemens SFA21.18, Siemens 400N Actuator, Siemens 24V HVAC Actuator

Replaces / compatible with

The SFA21/18 actuator is designed as a replacement for previous Siemens models with similar force and stroke requirements. It is compatible with standard building automation control signals.

Technical note

Expert tip

Ensure the mounting orientation is correct as per the manufacturer's guidelines to prevent operational issues and ensure longevity.

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Frequently asked questions

What is the force and stroke specification for the Siemens SFA21/18 actuator?

The Siemens SFA21/18 is an electromotoric actuator that provides 400 N of force and has an 18 mm stroke. It operates on an AC/DC 24V power supply and is used for damper and valve control.