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Siemens 4AM5742-5AT10-0FA0 1 kVA Isolation Transformer

Siemens 4AM5742-5AT10-0FA0 SITAS Isolation Transformer

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ManufacturerSiemens

Part number4AM5742-5AT10-0FA0

Phases 1

Pn/Pn(S6)(kVA) 1 /5

Upri(V) 400+/-5%

Usec(V) 230

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1 kVA rated power 400V primary, 230V secondary Single-phase operation UL/CSA recognized IP00 protection rating Control and isolation transformer function

Product description

The Siemens 4AM5742-5AT10-0FA0 is a single-phase SITAS isolation transformer designed for control circuits. It features a primary voltage of 400V with a +/-5% tolerance and a secondary voltage of 230V, providing a rated power of 1 kVA (S6 rating). This transformer operates at frequencies of 50-60 Hz and has a vector group of II0/0 with no shielding winding.

With a temperature rise of 40°C and an insulation class of B, this transformer is suitable for demanding industrial environments. It has an IP00 protection rating and utilizes screw-type terminals for both input and output connections. The mounting method is via screws. It complies with EN 61558-2-2 and -2-4 standards and is UL/CSA recognized.

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Technical specifications

Phases	1
Pn/Pn(S6)(kVA)	1 /5
Upri(V)	400+/-5%
Usec(V)	230
Isec(A)	4.35
F(Hz)	50...60
Vector Group/Shielding Winding	II0 /0
Temperature Rise/Insulation Class	40 /B
IP Rating	IP00
Connection	Screw/Flat-type connection
Mounting	Screws
Standards	EN 61558-2-2, -2-4
Certifications	UL/CSA-recognized

Common applications

Control panels

Machine automation

Industrial machinery

Power distribution

Electrical enclosures

Compatible systems

General industrial control systems Automation panels Machinery requiring isolated power

Also known as

Siemens SITAS Transformer 4AM57425AT100FA0 Siemens Control Transformer Isolation Transformer 1kVA

Replaces / compatible with

This transformer is a direct replacement for older Siemens SITAS models with similar specifications. It is designed to meet current safety and performance standards.

Technical note

Expert tip

Ensure proper ventilation as the IP00 rating offers no protection against dust or water ingress, and it should be installed within an enclosure.

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Frequently asked questions

What are the key specifications of the Siemens 4AM5742-5AT10-0FA0 transformer?

The Siemens 4AM5742-5AT10-0FA0 is a 1 kVA, single-phase isolation transformer with a 400V primary and 230V secondary. It operates at 50-60 Hz and features an IP00 rating, screw connections, and UL/CSA recognition.