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EMC Products

FMAB_NEO_N4PH_5500.2631.01_Pressebild_1
08.05.2015
> FMAB NEO: Compact Single-Phase Filter with High Symmetrical Attenuation
SCHURTER is expanding its range of block filters for single-phase systems with its new FMAB NEO series. This range of single-phase filters combines a compact design with a high level of performance. The use of large X capacitors permits high symmetrical attenuation.

The new FMAB NEO filter series boasts a compact design combined with high performance. All versions come with large X capacitors, which ensure high symmetrical attenuation in the lower frequency range. Symmetrical interferences can occur because of phase-angle controllers or semi-conductor relays, for example. When the power semiconductors switch, they generate interference currents between the phase conductor and the neutral conductor. These are known as symmetrical interferences, which the X capacitors positioned between these conductors can help reduce effectively.

The filters in the new series have a shiny steel housing with a closed filter base. The filter is thus effectively and completely shielded, no matter how it is mounted. The filter series is particularly suitable for equipment with high symmetrical interferences, such as devices with semiconductors that control high-power equipment such as professional coffee machines, devices with water heaters, and all types of industry electronics. The compact filters are also suitable for medical equipment and household appliances.

The filter series is available with plug-in connections or thread bolts (30 A version). A version with wire connection is also available. They have a metal flange for easy screw-on mounting on the housing.

The series of devices is designed for current levels from 1 A to 30 A at 250 VAC according to IEC and UL standards. It has ENEC and cURus approvals and is suited for applications according to IEC 60950. Versions are available with small leakage currents <80 µA (M80) or without leakage current <5 µA (M5) for medical equipment according to IEC/UL 60601-1.

Datasheet

Microsite FMAB NEO

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KFA_Erddrossel_Pressebild_1
03.03.2015
> KFA: Compact Power Entry Module with filter now with Ground Line Choke
SCHURTER’s popular power entry module, KFA series, is now equipped with an additional ground line choke to suppress high frequency interference arising from ground loops on the ground line. In addition, the newly added ground line choke improves asymmetric attenuation in higher frequencies in medical filter versions. The KFA series with existing common-mode choke on the phase and neutral conductors, together with an additional ground line choke, is well enhanced to address the growing EMC challenges facing compliance engineers today.

Ground loops arise through different impedances of different ground line connections in one or multiple pieces of equipment. While all ground connections have the same potential level for the 50 Hz load current, these can have different potential levels for high-frequency interference. The ground line choke, which is wired between the power-inlet connector and the filter output, smartly addresses this phenomenon. Because of its placement directly at the power line input, high-frequency interference currents on the ground line are prevented from bypassing the filter through the equipment housing. The ground line choke isolates the equipment chassis against high frequencies and the equipment ground from the ground on the line power connection. This approach effectively breaks any possible ground loops.

Audio equipment for instance is known for being prone to ground loop problems. Often referred to as hum or buzz, the KFA, with ground line choke, is well suited for suppressing interferences that lead to diminished sound quality. The KFA is also well suited for medical equipment required to use low leakage filters for increased patient safety. The reduced Y capacitance to ground, or absence thereof, leads to reduced asymmetric attenuation in higher frequencies. The KFA with ground line choke helps to compensate for this reduced performance.

The KFA power entry module includes an IEC C14 power inlet connector with a 1- or 2-pole fuseholder and EMC filter and is available in a wide range of models and designs. The series offers current levels from 1A to 10A at 250 VAC according to IEC and UL standards. The series has ENEC and cURus approvals and is suited for applications according to IEC 60950. Special filter versions, M5 and M80, are available for medical devices according to IEC 60601-1. Wiring is done using quick-connect terminals or wire leads. The KFA is compatible with V-Lock cord sets, designed to safeguard against unintentional disconnection of the power.

Datasheet KFA

Power Entry Modules with Filter

Microsite Medical Technology

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DC12_Schutzklasse_2_weiss_Pressebild_1
15.01.2015
> Power Entry Module DC12 for Protection Class II Medical Equipment Used at Home
SCHURTER expands its wide range of power entry modules to include versions, without ground pin, for use in Protection Class II double-insulated applications. The DC12 power entry module is already popular for use in Protection Class I equipment, due to its high performance switch and EMC filter functions integrated into one compact package. The new Protection Class II version is perfectly suited for medical equipment used at home where the medical standard prescribes the use of Protection Class II design.

The new DC12 Class II version is according to IEC 60320-1, style C18. It is particularly well suited for use in medical equipment according to the IEC standard 60601-1-11, which outlines additional safety measures specific to medical equipment intended for use in the home. There is increasing demand for such equipment as populations around the world age and healthcare costs continue to rise.

Protection Class II equipment, in contrast to Protection Class I equipment, generally has no metal case. This category of equipment is called double insulated, and requires higher safety levels for energized components relative to exposed surfaces. The DC12 Class II power entry module provides double insulation between energized components and exposed parts. This reinforced insulation is tested with a voltage of 4000 VDC between the energized conductor (L) and the neutral conductor (N) relative to the filter case.

The DC12 line switch is available in 1- or 2-pole and touts high inrush current withstand capability. The EMC filter is available in medical and low leakage, M5, versions. This integrated filter at the power input provides highly effective interference suppression, which results in optimized electromagnetic compatibility. Current ratings range from 1-10 A at 250 VAC. Versions with quick-connect or solder terminals are available. The DC12 is available in black or white. Mating V-Lock cord sets are available to safeguard against unintentional disconnection of the power.

The DC12 Class I and Class II are ENEC and cURus approved. They are suited for use in equipment according to IEC 60950, IEC 60601-1, in addition to IEC 60601-1-11.

Datasheet DC12

Microsite Medical Technology

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FMBC_NEO_LL_Pressebild
16.10.2014
> FMBC LL: Low leakage current 3-phase filter
SCHURTER expands its successful range of FMBC NEO 3-phase filters with a low leakage current series for applications where no high leakage currents are allowed. The new FMBC LL series of filters is designed for rated currents between 7 and 180 A. It is ideal for leakage current-critical industrial applications such as drive technology.

Today's electrical industrial installations are increasingly being fitted with residual current devices (RCD) to ensure efficient personal protection. This is also a requirement in certain countries for 3-phase systems, for example plug-in systems up to 32 A. The RCD limits the current to earth to a maximum of 30 mA. This poses a particular problem in drive technology since the frequency inverters that control the engine generate considerable leakage current. Long motor cables further aggravate the problem since they increase the capacity to earth and hence the currents to earth too. The new series of FMBC LL filters helps reduce the leakage currents and permits compliance with common EMC standards as an efficient input filter.

The compact FMBC LL 3-phase filters have been designed for currents from 7 A to 180 A at an ambient temperature of 50 °C. They have UL approvals for ambient temperatures of +50 °C as well as +40 °C at a higher rated current. The FMBC LL is approved for rated voltages of 520 VAC. This means that they can be used in high-power systems, such as machines used in an industrial environment. Despite their high output performance, they are still compact and lightweight in design.

The standard FMBC LL is fitted with a screw connection. Other types of connections including wires or copper bars are possible on request as well as customised modifications to the circuit or housing. SCHURTER also offers its own EMC measuring service for an optimum adjustment to the inverter. Therefore the most efficient filter solution for the system can be developed.

EMC Products

Datasheet FMBC LL

White Paper Leakage currents 955.04 kB (PDF)  Product Overview 1-Stage AC Filter/DC Filter 698.48 kB (PDF) 
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KFA_V_Lock_Pressebild_1_PG06
31.10.2014
> KFA and DA22 standard with notch for V-Lock cord retaining
SCHURTER is pleased to announce, that its compact KFA and DA22 series power entry modules, with 1- or 2-pole fuseholder and filters, now mates with V-Lock cord sets. The KFA’s and DA22’s new V-Lock compatible feature prevents unintended disconnection of the power from the equipment.

Unlike wire bail or clamp accessories, no additional costly hardware is necessary to install the cord retaining system. The cordset safely latches into a notch in the plastic housing of the KFA and DA22. Removing the cordset is easily achieved by depressing the latch. V-Lock power cords are offered in a wide range of cord lengths and country-specific plugs, including NEMA 5-15 standard hospital grade versions.

The KFA and DA22 are ideal for use in medical devices, IT and audio equipment used on stage, where the power to the equipment must withstand mechanical stress on the cord. It features C14 inlet, 1- or 2-pole fuseholder for 5x20mm fuses, mains filter, 4.8 x 0.8mm quick-connect or PCB terminals, and screw-on or snap-in mounting. Optional voltage selector allows for use in international markets. Current rating 1 to 10 A at 250 VAC.

Approvals include UL, CSA, VDE and CCC.

Datasheet KFA

Datasheet DA22

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DKFS_B22B_5K5J_SGE_EMV_PG81_Drosseln_SMD
21.08.2013
> Simple circuit simulation: SPICE library for common-mode chokes
To assist in the simulation of circuits, SCHURTER now offers SPICE libraries for common-mode chokes on circuit boards. 

The new SPICE library contains simulation models for all common-mode chokes on circuit boards up to a rated current of 10 A. Also included are example circuits with which it is possible to examine the operational properties of various chokes before they are actually used in the circuit.

The SPICE models help customers find the best product for their application. With the help of simulation, they can evaluate the behavior of the chokes and also carry out calculations. In modern electronic designs, it is very common to simulate circuits before actually building the hardware. This approach eliminates or reduces the effort needed to build prototypes, which saves time and money.

The library is simply copied into the corresponding directory of the SPICE application. In the circuit diagram of the SPICE application you can select and insert the desired choke from SCHURTER's product line. By clicking the mouse on the component, the desired item number is selected and the simulation is started. In addition, the library contains multiple example circuits for common-mode chokes. This makes it extremely easy to compare the operational properties of various chokes. An analysis of the frequency response and saturation is also possible.

The simulation models have been tested with LTspice but can also be used with other compatible SPICE programs. LTspice is a widely used freeware simulation tool from Linear Technology Corp.

www.schurter.ch/wwwsc/con_pg81_82.asp?language_id=10

SPICE Library

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FMCC_Pressebild_1_SOL_SGE_EMV_PG_Hochstromfilter_400A_AC_SOL_Filter
21.06.2013
> FMCC SOL: 3-phase high-current filter
SCHURTER is expanding its successful FMER SOL DC filter with a series for applications using 3-phase AC. The new FMCC SOL high-performance filter series is designed for rated currents from 150 to 2500 A. The devices are ideal for increasingly powerful inverters that require filters on both the AC and DC sides. Large inverters find use in photovoltaics, wind energy systems as well as in industrial applications and quick-charge stations for electric vehicles.

The very high-performance FMCC SOL 3-phase high-current filters are designed to handle currents from 150 to 2500 A at an ambient temperature of 50 °C. With a voltage rating of 520 V or 760 V, they can be used in all high-performance systems such as inverters for photovoltaic and wind power systems. Despite this high performance, they feature a compact, lightweight design.

The amount of renewable energy is constantly growing. As a result, ever more powerful and physically larger systems are being built such as for photovoltaics and harvesting wind energy. All these systems need high-performance inverters that are designed for optimal energy efficiency. Modern inverters with MPP (maximum power point) trackers generate interference in both directions: on the AC grid side and the DC panel side. On the DC side, a filter in the FMER SOL series can be used for currents from 25 to 2300 A. These are enhanced very nicely on the AC side with the new FMCC SOL high-current series for 3-phase AC from 150 to 2500 A. Filtering on both sides of the connection lines helps to meet common EMC standards.

The FMCC SOL filter family has UL approvals for ambient temperatures of +50 °C as well as +40 °C with higher rated current. They are approved for voltage ratings of 520 VAC and 760 VAC. The high voltage rating of 760 VAC allows their use in IT power grids.

The FMC SOL up to 250 A is equipped standard with M10 screw connections and starting at 320 A with copper bars. Other connection types (stranded wire or copper bars for current levels less than 320 A) are available on request. In addition, customer modifications to the switching or the housing are also possible on request.

For optimal matching to the inverter, SCHURTER offers its own EMC measurement service. In this way, the most efficient filter solution for a system can be easily determined.

Microsite FMCC

Datasheet

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FMER_Sol_SGE_EMV_PG80_Einbaufilter_Dreiphasig_Pressebild_1
18.01.2013
> FMER SOL: High-current DC filters
SCHURTER is expanding its successful FMER series of high-current filters with a model for high power. The entire series is now available without grounding capacitors for safety-related applications. 

Photovoltaic panels with increasing surface areas are being installed, and as a result ever more powerful inverters are required. To address this trend, SCHURTER is expanding the current ratings of its DC filters to 2300 A for higher power. For reasons of safety, filters are sometimes requested without grounding capacitors, which prevents any leakage current to ground. Thus, SCHURTER is also offering this entire series without Y capacitors.

Modern solar inverters with MPP (maximum power point) trackers generate interference in both directions: on the AC grid side and the DC panel side. On the AC side, it is usual to insert an AC filter such as the SCHURTER FMAC or FMBC, but until now few provisions have been made for the DC side. EMC standards EN 61000-6-3 and EN 55014-1, however, also limit the level of interference on non grid-connected conductors such as those going to a solar panel. A remedy can be provided by DC filters installed on the DC side of the solar inverter.

Large solar inverters are generally housed in cabinets that must have active cooling. The SCHURTER FMER series features high temperature resistance, which reduces the necessary cooling energy and makes a significant contribution to higher energy efficiency for the entire system.

FMER family filters have UL approvals for ambient temperatures of +55°C and +75°C as well as for rated voltages of 600 VDC and 1000 VDC. They are exceptionally well suited for rated currents from 25 A to 2300 A at an ambient of 55°C and for voltages up to 1200 VDC.

FMER SOL DC filters come standard with screw terminals up to 150 A, and with copper bars starting at 250 A. Other connection types (stranded wire or copper bar for current levels less than 250 A or bus bar terminals) are available on request. In addition, small modifications to the switching or the housing are also possible on request.

For optimal matching to the inverter, SCURTER offers its own EMC measurement service that makes it possible to find the most cost-effective filter solution.

Datasheet FMER SOL

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C22F.0101_SGE_GST_PG06_Heissgeraetestecker_Frontplatte_16A_mit_Filter
04.09.2012
> C22F: Compact filtered inlet for high ambient temperatures
Given the high levels of integration in electronic systems, the demand for electrical components for use in higher temperature environments is continually increasing. This is where the new C22F appliance inlet and filter fills a gap. The first product of its type on the market performs exceptionally well in applications with higher ambient temperatures. 

The new C22F filter series combines an IEC C22 high temperature appliance connector with a high-quality power-line filter. The combined inlet and filter are especially suited for use in applications with nominal currents up to 16A at 75°C ambient and 20A at 65°C ambient. The unique design provides higher temperature ratings over comparable filtered inlets, while maintaining a similar compact size.

The combination power entry module integrates the EMC filter directly at the line input, providing an optimal effect on electromagnetic compatibility. The broad metal flange features a large amount of contact area, which further optimizes filtering and shielding effects. Wiring is done using quick-connect or solder terminals.

The standard C20F and new C22F series are designed for operating currents up to 16A at 250 VAC according to IEC standards and 20A at 125/250 VAC according to UL standards. They are ENEC and cURus approved. The two series are available in standard and medical versions suitable for applications according to IEC 60950, and medical applications according to IEC 60601-1. Such applications include power distribution units, servers, medical heating appliances and imaging systems.

Microsite C22F

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5123.0006.0_SGE_GST_PG06_Geraetestecker_Frontplatte_10A_Filter
04.09.2012
> 5123: Compact filtered inlet boasts maximum attenuation
SCHURTER's latest 5123 series filtered inlet adds filter performance to the already successful standard version 5120 series. The higher attenuation in the same compact dimensions is designed to meet the continually increasing demands for interference suppression of IT, medical, test & measurement and industrial equipment. 

The new 5123 series filter combines an IEC power inlet and a line filter, designed for nominal currents up to 15A. The combination power entry unit integrates the EMC filter directly at the line input, providing an optimal effect on electromagnetic compatibility. The broad metal flange features a large amount of contact area, which further optimizes filtering and shielding effects. The filter’s increased inductance achieves a 6 dB improvement in asymmetric attenuation, compared to 5120 series and other like products on the market, corresponding to a doubling of its attenuation characteristics. Thus, the high filter performance makes the 5123 series well suited for applications such as switched-mode power supplies, where the utmost interference suppression is required.

The 5123 series is available for snap-in, screw-in or studded assembly. Screw-in assembly from the back side is particularly attractive for a plastic chassis with interior metal layers. Wiring is done with quick-connect, solder, stranded-wire or pc-board terminals. The PC version features snap-in feet for secure pc-board mounting. The stranded-wire version enables customer specific fitting for further cost-effective wiring.

The 5120 and enhanced 5123 are designed for operating current levels up to 10A at 250 VAC according to IEC and 15A at 125/250 VAC according to UL. They are ENEC and cURus approved. The two series are offered in standard and medical versions suitable for use in IT applications according to IEC 60950, and medical applications according to IEC 60601-1.

Microsite 5123

Datasheet 5123

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New Products

> FMCC SOL

SCHURTER is expanding its successful FMER SOL DC filter with a series for applications using 3- ...
Data Sheet Read more...
> FMAB NEO

SCHURTER is expanding its range of block filters for single-phase systems with its new FMAB NEO ...
Data Sheet Read more...
> FMER SOL

SCHURTER is expanding its successful FMER series of high-current filters with a model for high  ...
Data Sheet Read more...
> DC12

SCHURTER expands its wide range of power entry modules to include versions, without ground pin, ...
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