Datasheet

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Single-Phase Transformers

Safety, Isolating, Control and Mains Transformers

General data

11/6

Siemens IC 10 · 2011

■

Overview

4AM../4AT.. transformers

With the right transformer, the right voltage will be available at

any conditions.

Our transformers are the right choice for each application: They

work reliably, safely and worldwide under a wide range of

different conditions.

Transformers are summarized in a user-friendly manner as:

• Isolating, control and mains transformers

according to EN 61558-2-4, -2-2, -2-1 or

• Safety, control and mains transformers

according to EN 61558-2-6, -2-2, -2-1

Note:

Mains transformers with

≤

50 V on the output side are, in the case

of SIRIUS transformers, always designed as safety transformers.

Our transformers provide optimal protection through high per-

missible ambient temperatures up to 40 °C or 55 °C, a high

short-time rating in the case of control transformers, fuseless

construction and due to their safety standard "Safety inside"

EN 61558.

Connection methods

4AM../4AT.. transformers are available with screw terminals/flat

connectors.

Order No. scheme

Note:

The Order No. scheme is presented here merely for information

purposes and for better understanding of the logic behind the

order numbers.

For your orders, please use the order numbers quote in the

catalog in the Selection and ordering data.

■

Benefits

• High short-time rating of the SIRIUS transformers: lower

transformer rated power for a large number of contactors

• Suitable for "fuseless construction": The small inrush current

means that "circuit breakers for motor protection" can also be

used on the primary side

•

approvals for the USA and Canada: can be used

worldwide without any problems

• Comprehensive type spectrum supplied from stock: rapid

availability

■

Application

Transformers are used in industrial machines, process engineer-

ing, heating and air-conditioning equipment, etc., for supplying

control and signaling circuits, when:

• Several electromagnetic loads (e.g. contactors) have to be

controlled

• Control and signaling devices are used outside the control

cabinet

• The operational voltage for the loads differs from the available

voltage level

• Voltage matching for machines and installations with electrical

isolation or as an autotransformer

Generally our transformers are used for voltage matching of

electrical devices, e.g. in communications, medical engineering

and domestic appliances.

Screw terminals

Flat connectors

The terminals are indicated in the corresponding ta-

bles by the symbols shown on orange backgrounds.

Digit of the Order No. 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th

@ @ @ @ @ @ @ – @ @ @ @ @ – @ @ @ @

Transformer product type 4 A

Product group @

Rated power @ @

Power level @

Development status @

Rated input voltage @ @

Rated output voltage @ @

Version, e.g. coil form @

Application @ @

Degree of protection @

Connection type @

Example

4 A M 4 0 4 2 – 5 A T 1 0 – 0 F A 0

IC10_11.book Seite 6 Donnerstag, 16. Dezember 2010 7:53 07

Summary of content (11 pages)

PAGE 1
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data ■ Overview 4AM../4AT.. transformers Connection methods With the right transformer, the right voltage will be available at any conditions. 4AM../4AT.. transformers are available with screw terminals/flat connectors. Our transformers are the right choice for each application: They work reliably, safely and worldwide under a wide range of different conditions.
PAGE 2
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data ■ Technical specifications General data Transformers Type 4AM • Version • Performance range (with IP00) kVA 4AT EI core UI core 0.025 ... 2.5 > 2.5 ... 16 CUUS • Approvals Voltage range V ≤ 690 • Approvals for USA, Canada V ≤ 600 Rated frequency Hz 50 ... 60 Thermal class B H • Acc.
PAGE 3
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data Rated power at different ambient temperatures • With electrically separated windings • Degree of protection IP00 • According to EN 61558, CUUS Transformer Rated power Pn Permissible transformer load depending on the ambient temperature ta = 60 °C ta = 55 °C ta = 50 °C ta = 45 °C ta = 40 °C ta = 35 °C ta = 30 °C ta = 25 °C Type kVA kVA kVA kVA kVA kVA kVA kVA kVA 4AM transformers 4A
PAGE 4
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data Primary-side short-circuit and overload protection with motor starter protectors Version with one input voltage Transformer Rated power Pn Motor starter protector version: Motor protection1) Rated input voltage U1N in V Type kVA Type 690 660 600 575 550 525 500 480 460 440 415 400 380 240 230 220 208 200 190 4AM transformers 4AM23 4 0.
PAGE 5
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data European voltage and multi-voltage version Transformer Rated power Pn Motor starter protector1) Rated input voltage U1N in V Type kVA Type 690 660 600 575 550 525 500 480 460 440 415 400 380 240 230 220 208 200 190 Motor starter protector version for 4AM transformers: Transformer protection 4AM23 4 0.
PAGE 6
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data Secondary-side short-circuit and overload protection with motor starter protector Transformer Type Rated power Pn Motor starter protectors Version: Motor protection1) Rated output voltage U2N in V kVA Type 230 115 110 42 24 4AM23 4 0.025 3RV20 11-@@@10 Set value in A 0AA 0.14 0DA 0.26 0DA 0.29 0HA 0.75 1AA 1.3 4AM26 4 0.04 3RV20 11-@@@10 Set value in A 0CA 0.21 0FA 0.41 0FA 0.
PAGE 7
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers General data Short-time rating of control transformers Pshortt.1) = f (p.f.) for U2 = 0.95 × U2N Transformer Type Rated power Pn Short-time rating Pshortt.1) with p.f. of 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.
PAGE 8
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers SIRIUS 4AM safety, mains and control transformers ■ Overview • • • • • • According to EN 61558-2-6, -2-1, -2-2 CUUS ta = 40 °C/B AC 50/60 Hz Degree of protection IP00, IP23 and IP54 For more products see Industry Mall and Interactive Catalog CA 01 or www.mdexx.com.
PAGE 9
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers SIRIUS 4AM safety and mains transformers ■ Overview • • • • • • According to EN 61558-2-6, -2-1 CUUS ta = 40 °C/B AC 50/60 Hz Degree of protection IP00, IP23 and IP54 For more products see Industry Mall and Interactive Catalog CA 01 or www.mdexx.com.
PAGE 10
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers SIRIUS 4AM, 4AT isolating, control and mains transformers ■ Overview • • • • • • According to EN 61558-2-4, -2-2, -2-1 CUUS1) 4AM: ta = 40 °C/B, 4AT: ta = 55 °C/H AC 50/60 Hz Degree of protection IP00, IP23 and IP54 For more products see Industry Mall and Interactive Catalog CA 01 or www.mdexx.com.
PAGE 11
© Siemens AG 2010 Single-Phase Transformers Safety, Isolating, Control and Mains Transformers SIRIUS 4AM, 4AT isolating, control and mains transformers PU (UNIT, SET, M) = 1 PS* = 1 unit PG = 104 With one input voltage Rated input voltage U1N 400 V ± 5 %, rated output voltages U2N 110 V or 230 V CUUS, ¸, ¶ , μ Rated power Pn Short-time rating Pshortt.1) kVA kVA DT2) U2N 110 V Cu DT2) U2N 230 V weight Screw terminals3)/ per PU flat connectors3) approx.