EMC filters
2-line filters
IEC inlet filters
Series/Type: B84776
Date: May 2014
© EPCOS AG 2014. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
1) According to IEC 60529
Power line filters for 1-phase systems
Rated voltage VR: 250 V AC/DC
Rated current IR:1Ato10A
Construction
2-line filters with IEC connector, fuse holder and switch
Appliance connector according to IEC 60320-1
Fuse holder for 2 fuses ∅5×20 mm
(delivery without fuse)
Metal case
2-pole rocker switch
Versions
Standard version (B84776A*)
Medical version with negligibly low leakage current
(B84776M*)
Features
Easy to install
Compact design
Cost optimized construction
Degree of protection from front side IP 401)
UL and cUL approval
ENEC approval pending
Typical applications
Switch-mode power supplies for
industrial electronics
telecom systems
data systems
DC applications
Measuring instruments
Medical equipment
Terminals
Line side: IEC connectors C14 according to IEC 60320-1
Load side: Tab connectors
Marking
Marking on component:
Manufacturer's logo, ordering code, rated voltage, rated
current, rated temperature, climatic category, date code,
approvals
Minimum data on packaging:
Manufacturer's logo, ordering code, quantity, date code
2-line filters B84776
IEC inlet filters
Page 2 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Typical circuit diagram of B84776A*
(standard version)
Typical circuit diagram of B84776M*
(medical version)
2-line filters B84776
IEC inlet filters
Page 3 of 14Please read Cautions and warnings and
Important notes at the end of this document.
1) Calculation according to IEC 60939-1, annex A, at rated voltage and 50 Hz.In practice are up to double values to be expected due to
the insulation resistance values of the used ceramic capacitors. For the medical version results computationally the value 0. In practice
are values 1 ... 2 µA to be expected due to the insulation resistance values of the used materials.
Technical data and measuring conditions
Rated voltage VR250 V AC (50/60 Hz) / 250 V DC
Rated current IRReferred to 40 °C rated temperature
Test voltage Vtest 760 V AC, 2 s (line/line)
B84776A*: 2000 V AC, 2 s (lines/case)
B84776M*: 2500 V AC, 2 s (lines/case)
Rocker switch Rating
according to IEC 61058-1
10 A (4 A), 250 V AC, T105
Rating
according to UL 1054
250 V AC 1/2 HP,
10 A 250 V AC
10 A 125 V AC
Inrush current 82 A
Electrical life time
ON OFF
10000 cycles
Mechanical life time
ON OFF
50000 cycles
Leakage current lLK At VRand 50 Hz
Climatic category (IEC 60068-1) 25/085/21 (25 °C/+85 °C/21 days damp heat test)
Approvals UL 1283, CSA C22.2 No.8 granted
EN 60939 pending
Characteristics and ordering codes
IR
A
CR
X2
µF
CR
Y2
pF
LR
mH
ILK1)
mA
Rbleed
MΩ
Approx.
weight
g
Ordering code Approvals
×= Approval granted
P = Approval pending
VR= 250 V AC/DC
1 1 ×0.22 2 ×2200 2 ×7.6 0.173 1 90 B84776A0001A000 P × ×
1 1 ×0.22 2×7.6 0 1 90 B84776M0001A000 P × ×
2 1 ×0.22 2 ×2200 2 ×2.0 0.173 1 90 B84776A0002A000 P × ×
2 1 ×0.22 2×2.0 0 1 90 B84776M0002A000 P × ×
4 1 ×0.22 2 ×2200 2 ×1.0 0.173 1 90 B84776A0004A000 P × ×
4 1 ×0.22 2×1.0 0 1 90 B84776M0004A000 P × ×
6 1 ×0.22 2 ×2200 2 ×0.46 0.173 1 90 B84776A0006A000 P × ×
6 1 ×0.22 2×0.46 0 1 90 B84776M0006A000 P × ×
10 1 ×0.22 2 ×2200 2 ×0.33 0.173 1 130 B84776A0010A000 P × ×
10 1 ×0.22 2×0.33 0 1 130 B84776M0010A000 P × ×
2-line filters B84776
IEC inlet filters
Page 4 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Dimensional drawing
General tolerances according to ISO 2768cL
Dimensions in mm
2-line filters B84776
IEC inlet filters
Page 5 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Insertion loss for standard version (typical values at Z = 50 Ω)
Filters for 1 A Filters for 2 A
Filters for 4 A Filters for 6 A
2-line filters B84776
IEC inlet filters
Page 6 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Insertion loss for standard version (typical values at Z = 50 Ω)
Filters for 10 A
2-line filters B84776
IEC inlet filters
Page 7 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Insertion loss for medical version (typical values at Z = 50 Ω)
Filters for 1 A Filters for 2 A
Filters for 4 A Filters for 6 A
2-line filters B84776
IEC inlet filters
Page 8 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Insertion loss for medical version (typical values at Z = 50 Ω)
Filters for 10 A
2-line filters B84776
IEC inlet filters
Page 9 of 14Please read Cautions and warnings and
Important notes at the end of this document.
1) IL= leakage current let-go
2) The KU value (symbol KU) is a classification parameter of safety-referred failure types designed to ensure protection against hazardous
body currents and excessive heating.
3) A value of KU = 4.5 with respect to interruptions is attained with: a) a permanently connected protective earth circuit ≥2.5 mm2
connected via shroud connectors (IEC 603092) and b) a protective earth circuit.
4) KU = 6 with respect to interruptions is achieved for fixedconnection lines ≥10 mm2where the type of connection and line layout
correspond to the requirements for PEN conductors as specified in relevant standards.
Cautions and warnings
Please read all safety and warning notes carefully before installing the EMC filter and putting it
into operation (see ). The same applies to the warning signs on the filter. Please ensure that
the signs are not removed nor their legibility impaired by external influences.
Death, serious bodily injury and substantial material damage to equipment may occur if the
appropriate safety measures are not carried out or the warnings in the text are not observed.
Using according to the terms
The EMC filters may be used only for their intended application within the specified values in low-
voltage networks in compliance with the instructions given in the data sheets and the data book.
The conditions at the place of application must comply with all specifications for the filter used.
Warning
It shall be ensured that only qualified persons (electricity specialists) are engaged on work such
as planning, assembly, installation, operation, repair and maintenance. They must be provided
with the corresponding documentation.
Danger of electric shock. EMC filters contain components that store an electric charge. Danger-
ous voltages can continue to exist at the filter terminals for longer than five minutes even after
the power has been switched off.
The protective earth connections shall be the first to be made when the EMC filter is installed
and the last to be disconnected. Depending on the magnitude of the leakage currents, the par-
ticular specifications for making the protective-earth connection must be observed.
Impermissible overloading of the EMC filter or filter, such as with circuits able to cause reso-
nances, impermissible voltages at higher frequencies etc. can lead to bodily injury and death as
well as cause substantial material damages (e.g. destruction of the filter housing).
EMC filters and filters must be protected in the application against impermissible exceeding of
the rated currents by overcurrent protective circuitry.
In case of leakage currents >3.5 mA you shall mount the PE conductor stationary with the
required cross section before beginning of operation and save it against disconnecting. For
leakage currents IL1) <10 mA the PE conductor must have a KU value2) of 4.5 A3); for leakage
currents IL≥10 mA the PE conductor must have a KU value of 6.4)
Output chokes and output filters must be protected in the application against impermissible
exceeding of the component temperature.
The converter output frequency must be within the specified range to avoid resonances and
uncontrolled warming of the output chokes and output filters.
2-line filters B84776
IEC inlet filters
Page 10 of 14Please read Cautions and warnings and
Important notes at the end of this document.
The table below summarizes the safety instructions that must be observed without fail. A detailed
description can be found in the relevant chapters of the databook.
Topic Instructions Reference chapter
(data book),
paragraph
Selecting a filter When selecting a filter, it is mandatory to observe the
rated data of the equipment (such as its rated input
current, rated voltage, harmonic content etc.) as well
as the derating instructions in Chapters 9 and 10.
Selection guide for
converter filters
Rated voltage When power distribution systems deviating from the
symmetric TN-S system it is to check the suitability of
the EMC filters and the allowed voltages including the
fault cases.
Power distribution
systems,
7
Protection from
residual voltages
Discharge resistors
Active parts must be discharged within 5 s to a
voltage of less than 60 V (or 50 µC). If this limit
cannot be observed due to the operating mode, the
hazardous point must be permanently marked in a
clearly visible way.
Safety regulations,
6.1
Filters which are not permanently connected (e.g.
when the test voltage is applied to the filter at the
incoming goods inspection) must be discharged after
the voltage has been switched off.
Safety regulations,
6.2
Installing and
removing of EMC
filters
Installation
When installing and removing our EMC filters, a
voltage-free state must be set up and secured with
observance of the five safety rules described in
EN 50110-1.
Safety regulations,
6.4
Use in IT systems The special features of the IT system ("first fault case"
and other fault cases) shall be observed.
Power distribution
system (network
types), 7.6
Safety notes on
leakage currents
The filter leakage currents specified in the data book
are intended for user information only.The maximum
leakage current of the entire electrical equipment or
appliance has to be limited for safety reasons. Please
obtain the applicable limits for your application from
the relevant regulations, provisions and standards.
Leakage current,
8.4
Leakage current,
8.6
Voltage derating
Hazards caused by
overloading the filters
If the permissible limits for the higher-frequency
voltages at the filter are exceeded, the filter may be
damaged or destroyed.
Voltage derating,
9.8
Current derating at
elevated ambient
temperatures
Non-observance of the current derating may lead to
overheating and consequently represents a fire
hazard.
Current derating,
10.1
2-line filters B84776
IEC inlet filters
Page 11 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Topic Instructions Reference chapter
(data book),
paragraph
Protective earth
connection at
operating currents
>250 A
For operating currents greater than 250 A, we
recommend the PE connection to be set up between
the feed (filter: line) and output (filter: load) not via the
PE terminal bolt in the filter housing.
Mounting
instructions, point
2
Mounting position Note the mounting position of the filters! It must
always be ensured that natural convection is not
impaired.
Mounting
instructions, point
13
Long motor cables Long motor cables cause parasitic currents in the
installation. The cable lengths indicated for the output
chokes and output filters serve for orientation. The
user must check the technical parameters and
especially the choke temperatures for the respective
application.
Mounting
instructions, point
15
Display of ordering codes for EPCOS products
The ordering code for one and the same product can be represented differently in data sheets,
data books, other publications and the website of EPCOS, or in order-related documents such as
shipping notes, order confirmations and product labels. The varying representations of the
ordering codes are due to different processes employed and do not affect the specifications of the
respective products. Detailed information can be found on the Internet under
www.epcos.com/orderingcodes
2-line filters B84776
IEC inlet filters
Page 12 of 14Please read Cautions and warnings and
Important notes at the end of this document.
Symbols and terms
Symbol English German
αInsertion loss Einfügungsdämpfung
CRRated capacitance Bemessungskapazität
CXCapacitance X capacitor Kapazität X-Kondensator
CYCapacitance Y capacitor Kapazität Y-Kondensator
∆V Voltage drop (input to output) Spannungsabfall im Filter
dv/dt Rate of voltage rise Spannungsanstiegsgeschwindigkeit
f Frequency Frequenz
fMConverter output frequency Motorfrequenz
fPPulse frequency Pulsfrequenz
fRRated frequency Bemessungsfrequenz
fres Resonant frequency Resonanzfrequenz
ICCurrent through capacitor Strom durch Kondensator
ILK Filter leakage current Filter-Ableitstrom
Imax Maximum current Maximalstrom
INNominal current Nennstrom
Iop Operating current (design current) Betriebsstrom
Ipk Rated peak withstand current Bemessungs-Stoßstromfestigkeit
IqCapacitive reactive current Kapazitiver Blindstrom
IRRated current Bemessungsstrom
ISInterference current Störstrom
L Inductance Induktivität
LRRated inductance Bemessungsinduktivität
Lstray Stray inductance Streuinduktivität
PLPower loss Verlustleistung
R Resistance Widerstand
Ris Insulation resistance Isolationswiderstand
Rtyp DC resistance, typical value Gleichstromwiderstand, Richtwert
TAAmbient temperature Umgebungstemperatur
Tmax Upper category temperature Obere Kategorietemperatur
Tmin Lower category temperature Untere Kategorietemperatur
TRRated temperature Bemessungstemperatur
ukRefered voltage drop in % Bezogener Spannungsabfall in %
Veff RMS voltage Effektivspannung
VKVoltage drop Spannungsabfall
VLE Voltage line to earth; voltage line to ground Spannung Phase zu Erdpotential
VNNominal voltage Nennspannung
VRRated voltage Bemessungsspannung
Vpeak Peak voltage Spitzenspannung
Vtest Test voltage Prüfspannung
VXVoltage over X capacitor Spannung über X-Kondensator
VYVoltage over Y capacitor Spannung über Y-Kondensator
XLInductive reactance Induktiver Blindwiderstand
Z Impedance Scheinwidertand
|Z| Impedance, absolute value Scheinwiderstand (Betragswert)
2-line filters B84776
IEC inlet filters
Page 13 of 14Please read Cautions and warnings and
Important notes at the end of this document.
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 re-
quirements 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 incum-
bent on the customer to check and decide whether an EPCOS product with the properties de-
scribed 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 lifesaving 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 Ma-
terial Data Sheets on the Internet (www.epcos.com/material). Should you have any more de-
tailed 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 fore-
going for customer-specific products.
6. Unless otherwise agreed in individual contracts, all orders are subject to the current ver-
sion of the "General Terms of Delivery for Products and Services in the Electrical In-
dustry" published by the German Electrical and Electronics Industry Association
(ZVEI).
7. The trade names EPCOS, BAOKE, Alu-X, CeraDiode, CeraLink, CeraPlas, CSMP, CSSP,
CTVS, DeltaCap, DigiSiMic, DSSP, FilterCap, FormFit, MiniBlue, MiniCell, MKD, MKK,
MLSC, MotorCap, PCC, PhaseCap, PhaseCube, PhaseMod, PhiCap, SIFERRIT, SIFI,
SIKOREL, SilverCap, SIMDAD, SiMic, SIMID, SineFormer, SIOV, SIP5D, SIP5K, TFAP,
ThermoFuse, WindCap are trademarks registered or pending in Europe and in other coun-
tries. Further information will be found on the Internet at www.epcos.com/trademarks.
Important notes
Page 14 of 14
