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Siemens 4AT3932-8DD40-0FA0 SITAS Control Transformer

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ManufacturerSiemens

Part number4AT3932-8DD40-0FA0

Phases 1

Pn/Pn(S6)(kVA) 10 /30

Upri(V) 550-525-500-480-460- 440-415-400-380-230-208

Usec(V) 2x115

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10kVA Rated Power Primary 550-208V Secondary 2x115V Control and Isolation Transformer IP00 Protection UL/CSA Recognized

Product description

The Siemens 4AT3932-8DD40-0FA0 is a single-phase SITAS control and isolation transformer with a rated power of 10 kVA (30 kVA in S6). It features a primary voltage range of 550-208V and a secondary voltage of 2x115V, with a secondary current of 43.5-87.0A. Operating at 50/60Hz, it has a vector group of II0/0 and a shielding winding.

This transformer is designed for use in industrial control systems, offering isolation and a stable output voltage for sensitive control circuits. Its robust construction, with a temperature rise of 55°C and insulation class H, ensures reliable operation in demanding environments. It is compliant with EN 61558-2-1, -2-2, and -2-4 standards and is UL/CSA recognized.

Source your Siemens 4AT3932-8DD40-0FA0 transformer from Stanlo Automation, a veteran-owned business specializing in surplus industrial parts. We provide reliable components and expert service to keep your operations running smoothly.

Technical specifications

Phases	1
Pn/Pn(S6)(kVA)	10 /30
Upri(V)	550-525-500-480-460- 440-415-400-380-230-208
Usec(V)	2x115
Isec(A)	43.5-87.0
F(Hz)	50...60
Vector group/shielding winding	II0 /0
Temperature rise/insulation class	55 /H
IP Rating	IP00
Connection	Screw connection
Mounting	Screws
Standards	EN 61558-2-1, -2-2, -2-4
Certifications	UL/CSA-recognized

Common applications

Industrial Control Panels

Machine Tool Automation

Building Automation Systems

Power Distribution

Electrical Cabinets

Compatible systems

Control systems Automation equipment Electrical panels requiring stable voltage

Also known as

Siemens SITAS Transformer Siemens Control Transformer 4AT3932 Siemens Isolation Transformer

Replaces / compatible with

This part is a standard Siemens SITAS transformer and is not typically a direct replacement for a specific older part number, but is compatible with systems requiring similar voltage and power ratings.

Technical note

Expert tip

Ensure proper ventilation around the IP00 enclosure to prevent overheating, especially under S6 load conditions.

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Frequently asked questions

What are the primary and secondary voltages for the Siemens 4AT3932-8DD40-0FA0?

The Siemens 4AT3932-8DD40-0FA0 transformer has a primary voltage range of 550-208V AC and a secondary voltage of 2x115V AC. This allows for flexible input power connections and provides a stable 115V output for control circuits.