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Power line chokes
Current-compensated ring core triple chokes 440/250 V AC, 50 ... 200 A, 0.12 ... 1.3 mH
Series/Type: B82745C October 2008
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Date:
(c) EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures hereto and the information contained therein without EPCOS' prior express consent is prohibited.
Power line chokes Current-compensated ring core triple chokes
Rated voltage 440/250 V AC Rated current 50 A to 200 A Rated inductance 0.12 mH to 1.3 mH Construction

B82745C
Current-compensated ring core triple choke Ferrite core Aluminum case Fixing by means of base plate Polyurethane potting (UL 94 V-0) Sector winding
Features
High power Design complies with EN 60938-2 (VDE 0565-2) RoHS-compatible
Applications

Suppression of common-mode interferences Switch-mode power supplies for converters, USV Power supplies, medical equipment Track vehicles, chargers
Terminals
Litz wires Stud terminals
Marking Manufacturer, ordering code, rated current, rated inductance, rated voltage, climatic category, date of manufacture (MM.YY) Delivery mode Cardboard box
Please read Cautions and warnings and Important notes at the end of this document.
2
10/08
Power line chokes Current-compensated ring core triple chokes
Dimensional drawings and electrical circuits B82745C*A007
142 1300.2
3 3'
B82745C
1
1' 2' 3'
IND0275-W
o4.8
2 3
90 600.2
2
2'
1' 1
122
102 122 67 40010
IND0276-9
B82745C*A010, A013
a
h1
1 2 3 1' 2' 3'
IND0275-W
o5.8 1550.2 x 800.2 (206) 1740.5 1450.5
2 3' 1' 1 2 3 3 x 320.3 1280.5 1450.5 2'
123
Type
IND0277-H
a M10 M8
h1 30 mm 20 mm
B82745C0002A010 B82745C0002A013
Tolerances to ISO 2768-C unless otherwise noted.
Please read Cautions and warnings and Important notes at the end of this document.
Dimensions in mm 10/08
3
Power line chokes Current-compensated ring core triple chokes
Technical data and measuring conditions Rated voltage VR Test voltage Vtest Rated temperature TR Rated current IR Rated inductance LR 440/250 V AC (50/60 Hz) 2500 V AC, 2 s (line/line) 2500 V AC, 2 s (line/case) 60 C Referred to 50 Hz and rated temperature
B82745C
Measured with Agilent 4284A at 0.1 mA, 20 C Measuring frequency: LR 1 mH = 100 kHz LR > 1 mH = 10 kHz Inductance is specified per winding. 30% at 20 C < 20% at DC magnetic bias with IR, 20 C Measured at 20 C, typical values, specified per winding 40/125/56 (to IEC 60068-1) -25 C ... +40 C, 75% RH
Inductance tolerance Inductance decrease L/L0 DC resistance Rtyp Climatic category Storage conditions (packaged)
Characteristics and ordering codes IR A 50 100 200 LR mH 1.3 0.33 0.12 Rtyp m 3.75 0.65 0.28 Weight kg 1.7 6.0 6.3 Terminal Litz wire 11.5 mm 2 Stud terminal M 10 Stud terminal M 8 Ordering code B82745C0005A007 B82745C0002A010 B82745C0002A013
Please read Cautions and warnings and Important notes at the end of this document.
4
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Power line chokes Current-compensated ring core triple chokes
Impedance |Z| versus frequency f measured with windings in parallel at 20 C, typical values Current derating Iop/IR versus ambient temperature TA
1.4 I op I R 1.2 1.0 TR = 60 C 0.8 0.6 0.4 0.2 0
B82745C
IND0372-K-E
0
20
40
60
80
100
C 140
TA
5
10/08
Cautions and warnings
Please note the recommendations in our Inductors data book (latest edition) and in the data
sheets. - Particular attention should be paid to the derating curves given there. - The soldering conditions should also be observed. Temperatures quoted in relation to wave soldering refer to the pin, not the housing.
If the components are to be washed varnished it is necessary to check whether the washing
varnish agent that is used has a negative effect on the wire insulation, any plastics that are used, or on glued joints. In particular, it is possible for washing varnish agent residues to have a negative effect in the long-term on wire insulation.
The following points must be observed if the components are potted in customer applications:
- Many potting materials shrink as they harden. They therefore exert a pressure on the plastic housing or core. This pressure can have a deleterious effect on electrical properties, and in extreme cases can damage the core or plastic housing mechanically. - It is necessary to check whether the potting material used attacks or destroys the wire insulation, plastics or glue. - The effect of the potting material can change the high-frequency behaviour of the components.
Ferrites are sensitive to direct impact. This can cause the core material to flake, or lead to
breakage of the core.
Even for customer-specific products, conclusive validation of the component in the circuit can
only be carried out by the customer.
Please read Cautions and warnings and Important notes at the end of this document.
6
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Important notes
The following applies to all products named in this publication: 1. Some parts of this publication contain statements about the suitability of our products for certain areas of application. These statements are based on our knowledge of typical requirements that are often placed on our products in the areas of application concerned. We nevertheless expressly point out that such statements cannot be regarded as binding statements about the suitability of our products for a particular customer application. As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specification is suitable for use in a particular customer application. 2. We also point out that in individual cases, a malfunction of electronic components or failure before the end of their usual service life cannot be completely ruled out in the current state of the art, even if they are operated as specified. In customer applications requiring a very high level of operational safety and especially in customer applications in which the malfunction or failure of an electronic component could endanger human life or health (e.g. in accident prevention or life-saving systems), it must therefore be ensured by means of suitable design of the customer application or other action taken by the customer (e.g. installation of protective circuitry or redundancy) that no injury or damage is sustained by third parties in the event of malfunction or failure of an electronic component. 3. The warnings, cautions and product-specific notes must be observed. 4. In order to satisfy certain technical requirements, some of the products described in this publication may contain substances subject to restrictions in certain jurisdictions (e.g. because they are classed as hazardous). Useful information on this will be found in our Material Data Sheets on the Internet (www.epcos.com/material). Should you have any more detailed questions, please contact our sales offices. 5. We constantly strive to improve our products. Consequently, the products described in this publication may change from time to time. The same is true of the corresponding product specifications. Please check therefore to what extent product descriptions and specifications contained in this publication are still applicable before or when you place an order. We also reserve the right to discontinue production and delivery of products. Consequently, we cannot guarantee that all products named in this publication will always be available. The aforementioned does not apply in the case of individual agreements deviating from the foregoing for customer-specific products. 6. Unless otherwise agreed in individual contracts, all orders are subject to the current version of the "General Terms of Delivery for Products and Services in the Electrical Industry" published by the German Electrical and Electronics Industry Association (ZVEI). 7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CSMP, CSSP, CTVS, DSSP, MiniBlue, MKK, MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, SIFERRIT, SIFI, SIKOREL, SilverCap, SIMDAD, SIMID, SineFormer, SIOV, SIP5D, SIP5K, ThermoFuse, WindCap are trademarks registered or pending in Europe and in other countries. Further information will be found on the Internet at www.epcos.com/trademarks. 7 03/09

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