Siemens CFSS5400N Actuator Shaft 5 X 400 Mm

Product Description

The SIEMENS CFSS5400N is a replacement actuator shaft designed for use with compatible Siemens damper actuators in HVAC control applications. This shaft measures 5 millimeters in diameter and 400 millimeters in length, providing the mechanical link between the actuator drive and the damper blade or valve stem. It is a precision-fit component intended for installation by licensed HVAC technicians and building automation controls specialists working on air handling, ventilation, and zone control systems. Proper shaft fitment is critical to actuator torque transmission and long-term reliable operation.

This shaft is suited for HVAC systems where Siemens actuators are used to modulate airflow through dampers in air handling units, VAV boxes, and similar mechanical systems. It is typically installed during actuator servicing, replacement, or new construction commissioning where the original shaft is damaged, lost, or requires a specific length configuration. Installation occurs in commercial and light industrial HVAC environments where Siemens controls equipment is specified.

Key Features

• 5 mm diameter shaft sized for compatible Siemens actuator drive couplings
• 400 mm length provides reach for standard actuator-to-damper configurations
• Designed as a direct replacement shaft for applicable Siemens actuator models
• Lightweight construction at 0.507 pounds for easy handling during installation

Compatibility

Designed as an OEM-style replacement shaft for compatible Siemens damper actuators requiring a 5 mm diameter, 400 mm length shaft. Verify actuator model compatibility against Siemens documentation before ordering.

Installation Notes

Installation should be performed by a qualified HVAC technician or controls specialist. De-energize the actuator and isolate the control circuit before removing or installing the shaft. Ensure the shaft seats fully into the actuator drive coupling and damper stem to prevent slippage under load. Follow applicable local mechanical codes and the actuator manufacturer's installation instructions during reassembly.

Technical Specifications

• Shaft Diameter: 5 mm
• Shaft Length: 400 mm
• Weight: 0.507 pounds
• UPC: 04089291556

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: CFSS5400N