Siemens 57.2 Base C21305D Aga C21305D

Control Box Base

Siemens AGA 57.2 Base – C21305D
Genuine Siemens Mounting Base for AGA Boiler Applications

Product Summary:

The Siemens AGA 57.2 Base (Part No. C21305D) is a high-quality, purpose-built component designed to support and securely house control or actuator units in AGA oil and gas heating systems. Specifically engineered for compatibility with Siemens burner controls used in AGA cookers and boilers, this mounting base ensures safe electrical installation and reliable long-term performance. It’s an essential spare for service engineers working on AGA 57.2 burner configurations.

Key Features:

• Genuine Siemens component – part number C21305D

• Specifically designed for AGA 57.2 heating system controls

• Ensures secure electrical connections and physical support

• Durable, heat- and impact-resistant construction

• Pre-drilled for easy and safe installation

• Trusted by OEM installers and AGA service engineers

Compatible Boiler Models:

• Suitable for use in AGA 57.2 burner assemblies

• May be compatible with other Siemens SQM/SQN control units used in oil-fired AGA systems

• Always verify with technical documentation or consult a qualified technician

When to Replace:

• When performing a burner control upgrade or replacement

• If the existing base is damaged, heat-warped, or corroded

• During full burner system overhauls or electrical rewiring projects

Technical Specifications:

• Part Number: C21305D

• Manufacturer: Siemens

• Application: Mounting base for Siemens control units in AGA 57.2 burner setups

• Material: Industrial-grade heat-resistant polymer

• Mounting: Compatible with standard DIN mounting or panel mount setups