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Siemens 4AM4042-5CT10-0FA0 SITAS Isolation Transformer - 0.25 kVA

Siemens 4AM4042-5CT10-0FA0 SITAS isolation transformer.

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ManufacturerSiemens
Part number4AM4042-5CT10-0FA0
Phases 1
Pn(kVA) 0.25
Pn(S6)(kVA) 0.85
Upri(V) 440+/-5%
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UL/CSA Recognized Isolation Transformer Control Transformer 440V Primary +/-5% 230V Secondary Output EN 61558 Compliance

The Siemens 4AM4042-5CT10-0FA0 is a single-phase SITAS transformer with a nominal power of 0.25 kVA (S6 rated at 0.85 kVA). It is designed for a primary voltage of 440V with a +/-5% tolerance and provides a secondary voltage output of 230V at 1.09A. This transformer operates at 50/60 Hz, has a 40Β°C temperature rise, and an IP00 enclosure rating.

Compliant with EN 61558-2-1, -2-2, and -2-4 standards and recognized by UL/CSA, this isolation and control transformer is suitable for applications requiring electrical separation and a stable 230V output. It is a reliable component for industrial automation, control panels, and machine building.

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Phases1
Pn(kVA)0.25
Pn(S6)(kVA)0.85
Upri(V)440+/-5%
Usec(V)230
Isec(A)1.09
F(Hz)50-60
Vector GroupII0/0
Temp Rise40Β°C
Insulation ClassB
IP RatingIP00
ConnectionScrew/Flat-type
MountingScrews/DIN Rail
Industrial Control
Automation Systems
Machine Tooling
Power Distribution
Electrical Safety
Panel Building
Industrial Automation Control PLC Power Machine Control Systems Safety Circuits
Siemens SITAS Isolation Transformer 4AM4042-5CT10-0FA0 Transformer Siemens Control Transformer
This transformer can replace Siemens SITAS units with similar voltage and power ratings, offering robust isolation for control circuits.
Expert tip
The +/-5% tolerance on the 440V primary input ensures stable 230V output even with minor supply voltage variations.
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What is the secondary voltage and current rating for the Siemens 4AM4042-5CT10-0FA0 transformer?
The Siemens 4AM4042-5CT10-0FA0 SITAS transformer provides a secondary voltage of 230V and is rated to deliver 1.09A.