Category Archives: Filters / EMC Products

Schaffner FN9262 & FN9266, High-Performance IEC C14 PEM with Fuse Holder or Switch

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High-Performance Filter Series FN 9262 (with fuse holder) and FN 9266 (with dual pole switch)

The high-performance filter series FN 9262 (with fuse holder) and FN 9266 (with dual pole switch), are developed for applications demanding high attenuation performance. These represent an enhanced version of the already market proven FN 9260 and FN 9264 filter families. One of the key applications for this filter is the medical market; the filter carries additional approvals, making it easier for the end user to implement into their design. FN 9262 B and FN 9266 B (B-types) filters meet the insulation requirements according to IEC 60601-1 1MOPP (1 means of patient protection).

Both filter series outperform the already existing filters FN 9260 and FN 9264 over the whole frequency range. This increased performance lies in two key components: the advanced core material (common mode performance) and the increased X-capacitor values (differential mode performance).

The housing dimensions are identical to the existing series making an exchange between the filters easy. In addition, the PEMs (Power Entry Modules) are mechanically compatible with almost all similar style products in the market and the same as in FN 9260 and FN 9264.

With the new variant diversity (FN 9260/2/4/6) and the present attenuation properties, this filter family offers a solution for medical devices, modern appliances for household, audio and video. They can also be used in several other applications with similar requirements.

The filters have all the required safety approvals (UL 60939-3, CSA C22.2 No. 8, IEC 60939-3 and CQC), they carry a CE mark and are compatible with the RoHS II (2015/863) directive.

 

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Schurter FMAB HV Compact 1-Phase Filter for AC and DC Applications

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• For 277 VAC or 400 VDC applications
• Excellent symmetrical attenuation
• Completely enclosed steel housing
• Optional overvoltage protection

Schurter extends its successful family of chassis mounted filters for 1-phase systems, FMAB NEO with the new series FMAB HV. It is suitable for applications up to 277 VAC as well as 400 VDC. In North America, there are various 1-phase applications in the 3-phase 480/277 VAC network. 400 VDC is often used in modern data centers with DC power supply. The single-stage filter series combines a compact design with a high level of performance.

With 277 VAC and 400 VDC approval, the new FMAB HV filter family offers the greatest possible flexibility for various applications. Today, more and more mixed AC and DC power supplies are used for better energy efficiency and/or improved reliability. In these applications, the filter can be used on both the AC and DC sides.

The new filter series has a shiny steel housing with a closed filter base. This effectively shields the filter, no matter how it is mounted. The filter series is particularly suitable for devices with high symmetrical interferences, such as devices with semiconductors, which regulate high outputs (e.g. commercial coffee machines, hot water dispensing machines, and all types of industrial electronics). Due to their compact design, the filters are also ideally suited for medical and household appliances.

The filters are available with quick connect terminals 6.3 x 0.8mm. They have a metal flange for easy mounting on the chassis. The entire filter family can be used over a temperature range from -40 °C to 100 °C.

The series is designed for currents from 1 A to 20 A at 277 VAC / 277 VDC according to IEC standard and 277 VAC and 400 VDC according to UL/CSA standard. It has ENEC and cURus approval and is suitable for applications according to IEC 60950. For medical devices according to IEC/UL 60601-1, variants with low leakage currents <80 μA (M80) or without leakage current <5 μA (M5) are available.
Versions with built-in varistors for effective overvoltage protection are available on request.

Technical Data / Approvals
– 277 VAC / 400 VDC single-phase block filter
– Single-stage filter with excellent symmetrical attenuation
– Filter available in standard or medical M5 / M80 version
– Rated currents: 1, 3, 6, 10, 12, 16, 20 A (ENEC / UL / CSA) at 40°C
– Operating Temperature: -40°C to 100°C
– Chassis: Screw-on mounting, from top
– Quick connect terminals 6.3 x 0.8mm

Application
– for 277 VAC applications in North America in 3 phase WYE power 480/277 VAC
– for 400 VDC application e.g. data center
– for applications with high symmetrical interferences
– Industrial applications
– Datacom equipment
– Medical equipment

 

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Schurter DKIH-EVB Evaluation Boards for Current-Compensated High-Current Chokes

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• Development tool for 1- and 3-phase systems
• Suitable for DKIH-1 and DKIH-3
• For high power applications

Schurter is now offering proven test circuit boards for the DKIH-1 and DKIH-3 high-current chokes. With these, an EMI filter circuit for 1- or 3-phase systems can be set up and tested easily and quickly in an iterative process without having to make any adjustments to the layout of your own PCB.

Every developer of an electrical or electronic device is faced with the same problem: In the end, the device must comply with international EMC guidelines regarding emission and immission. Problems, often of an unpredictable nature, mostly arise in the power section. Like most electronic assemblies, the power section is increasingly being mounted on printed circuit boards using discrete components. A compact filter directly on the printed circuit board with discrete components is therefore usually the best solution. And a current-compensated choke with capacitors is the most efficient measure for EMC suppression.

DKIH-EVB
With the new SCHURTER DKIH-EVB (Evaluation Board) test circuit boards, a wide variety of filter configurations can be quickly calibrated with the DKIH series of current-compensated chokes without making any changes to an existing PCB layout. With high L and C values, the vast majority of disturbances can be adequately attenuated. The art of filter design, however, lies in finding an effective and at the same time cost-optimized combination of components. Often, slightly smaller L and C values are sufficient if these are perfectly combined. An EMC measurement of the finished system or device is indispensable for the declaration of conformity.

 

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Schurter DG12 Compact Connector with Circuit Breaker and Filter

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• High IP protection up to IP67
• Recessed rocker switch prevents accidental switch-off
• Versatile mounting options
• V-Lock cord retention

With the DG12, Schurter launches its most versatile power entry module with IEC inlet, integrated circuit breaker and a mains filter – with optional IP protection. Thanks to its extremely compact dimensions and a wide range of mounting options, it consolidates discrete power components into one space-saving unit suitable for a variety of applications.

The new DG12 filter series from SCHURTER combines an IEC inlet with a TA35 miniature circuit breaker and a mains filter – with optional IP protection. The DG12 is available for almost any mounting variant with snap or screw mounting. In addition, the flange mount version is available in either vertical or horizontal arrangement.

 

Thermal Circuit Breaker
The DG12 has an integrated TA35 bi-pole circuit breaker. It offers the function of a device switch as well as thermal overcurrent protection. The overcurrent protection is available with a bi-metal switching package on one or two poles and with rated currents from 0.05 A to 15 A. The rocker switch is available illuminated or non-illuminated, as well as in a variety of colours and markings.

IP Protection
In addition to the standard versions with IP40 protection, the DG12 is available in a version with IP67 seal protection to the panel and circuit breaker. The use of the DG12 in harsh environments with dust or splashing water is ensured with a cover for the circuit breaker, as well as sealing gasket and four sealing screws for fastening the flange.

Wide Range of Applications
The DG12 series is certified for currents up to 10 A/250 VAC according to IEC standard and 15 A/125/250 VAC UL/CSA standard. The filter series is available in standard or medical versions and for protection class I and II. For applications that require a particularly high immunity to interference, versions with high inductance filters are available. Such applications for example are IT or telecom systems according to IEC 90650, and medical devices according to IEC 60601-1. The series is compatible with V-Lock cord retention connection cables.

 

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Schurter’s New Design of Filter Series FMBB NEO

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• New nickel plated steel case
• Complete closed housing
• Extended climatic category 40/100/21

The successful 1 phase filter series FMBB NEO has been redesigned. The new shiny filter housing is made of nickel plated steel and complete enclosed. This ensures better contact with the equipment chassis. With an extended temperature range of -40 up to 100°C the filters can now be used for application with extra low temperatures.

Characteristics
• Designed for current applications of 1 – 36 A
• Protection against interference voltage from the mains
• Possible interferences generated in the equipment are strongly attenuated
• Especially designed for industrial applications such as: Frequency Converters, Stepper Motor Drives, UPS-Systems, Inverters
• Suitable for use in equipment according to IEC/UL 60950
• Suitable for use in medical equipment according to IEC/UL 60601-1

 

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Schurter FMAC NEO 3-Phase Mains Filter

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* Compact design
* Single-stage filter with high EMI attenuation
* Reduced weight
* Low leakage current versions available

Schurter launches its single-stage filter family FMAC NEO. Especially compact with high performance, the new filter series is ideally suited for use in today’s more portable industrial machines, designed to occupy less floor space in manufacturing plants. A wide temperature range extends its capabilities for use in many critical applications.

Three-phase control cabinets, in particular, can have space constraints. SCHURTER addresses this problem with a completely new filter design, which is much more compact than older generations. The new, almost cubed, design makes optimum use of available space in the cabinet housing. Designed with the highest quality components, the filter attenuation remains very high relative to its more compact dimensions.

The new filter family is also suitable for use in devices subjected to high EMC loads such as energy converters or motor drives. Typical applications include converters for photovoltaics, battery storage or charging stations for electric vehicles. These new high-performance type filters are also the better choice for modern day frequency inverters used for motor control.

The FMAC NEO filter series has screw terminals for safe and reliable wire terminations. A full metal flange guarantees a good earth ground connection upon screw mounting to the chassis. The standard versions can be used over a wide temperature range from -40 °C to 100 °C. The filters are designed for currents from 16 A to 230 A at an ambient temperature of 50 °C. They are ENEC and cURus approved and recommended for applications up to 520 VAC. The standard versions are designed for industrial applications with leakage currents <13 mA. Special versions for leakage-critical applications of <3 mA are also available.

The completely redesigned models of the FMAC NEO family are the ideal replacement for all types of Schurter legacy FMAC filters. The FMAC NEO offers the same high performance with significantly smaller dimensions and weight.

Technical Data / Approvals
– 3-phase filter 300 / 520 VAC
– single-stage filter with very high attenuation
– filter available with industrial < 13 mA or low leakage current versions < 3 mA
– rated currents: 16, 25, 36, 50, 64, 80, 110, 180, 230 A (ENEC / UL / CSA) at 50 °C
– operating temperature: -40 °C to 100 °C
– chassis mounting
– screw terminals

Applications
– Industrial equipment, machines
– Motor drive applications
– Machine tools
– Energy inverters (photovoltaic, battery)
– Electro vehicle charging stations

 

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Schaffner New FN 9255 RFI Filter Series with IEC Inlet C14 or C20

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Schaffner, the international leader in the field of electromagnetic compatibility and power quality, introduces a new series of RFI filters with IEC Inlet C14 or C20.

The dual-stage high-performance FN 9255 filter series are an addition to the market proven FN 92XX filter families and have been developed for high frequency applications, above 30 MHz. The FN 9255 is the first power inlet designed by Schaffner to operate up to 300 MHz.

The only difference from a standard Schaffner IEC inlet is a slightly increased length, which means the FN 9222, FN 9233, FN 9244 and recently introduced FN 9255 all fit in the same cut out, allowing designers exchange inlet filters if the system requires higher performance than one of the basic models.

The new series offers a high number of variants of approximately 100 different filter types. Included in the range are versions designed for medical applications, one with and one without an earth line choke.

Another new feature of the series is a rear mount version, which includes a press-in nut to allow a reliable assembly without adding complexity to the system chassis.

The very wide variant diversity and comprehensive attenuation properties means the FN 9255 series offers an filtered power inlet solution for a wide range of applications including the latest household appliances, audio, video and also medical devices.

The filters have full international safety approvals (UL 60939-3, IEC 60939-3 and CQC), are CE marked and are compatible with the RoHS II (2015/863) directive.

 

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Schurter Type DD12 Compact Power Entry Module with Filter

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* Very compact design
* Various mounting options
* Variants with ground choke
* V-Lock cord retention
* Fuseholder meets latest IEC standard#

Schurter extends its successful power entry module series DD12 with new variants for screw and snap mounting. New versions are also available with additional ground choke for suppressing high-frequency interference on the ground conductor. The DD12 with fuse holder, switch and filter offers remarkable functionality in a very compact housing.

The DD12 filter series combines an IEC C14 appliance plug with a 1- or 2-pole fuse holder, a 1- or 2-pole switch and a high-quality mains filter. The particularly wide metal flange (horizontal or vertical) make contact with the housing surface over a large area and thus enables an optimum filter and shielding effect.

Ground Choke
The DD12 series is now available with a ground choke. In addition to the current-compensated choke on the pole and neutral conductor, the line filters have a second choke on the earth conductor. The ground choke is located between the device plug and the filter output. Placing the filter directly at the mains input ensures that possible high-frequency interference currents on the earth conductor cannot bypass the filter via the housing. The versions with medical filters (no Y capacitors) especially benefit from improved asymmetrical attenuation in the higher frequency range due to the earth line choke.

Applications
The DD12 series is available with standard or medical filter. It is suitable for use in devices that require a particularly high immunity to interference. These include IT or telecom systems according to IEC 90650-1 and medical devices according to IEC 60601-1.

The series meets the new fuseholder requirements outlined in IEC 60127-6 for enhanced fire safety and is also suitable for use in home appliances according to IEC 60335-1. It is compatible with V-Lock retaining cordsets.  The DD12 series is certified for currents up to 10 A/250 VAC according to IEC standard and 8 A according to UL/CSA standard at 125/250 VAC. It is ENEC and cURus approved.

 

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Schurter – Two Are Better Than One

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More and more devices on the power grid must function smoothly without interfering with each other. Not so easy, since switching power supplies and highly clocked integrated circuits are used in almost all electronic devices. EMC filters can help here. Where necessary in multi-stage design.

In practice, it is quite possible that the attenuation is not yet sufficient despite the use of a filter. In such cases, several filter stages optimized for the specific interference signals are then connected in series. Which in interaction significantly improve attenuation in both differential and common-mode interference. Usually you get very good results with a doublestage filter. However, triple-stage filters are also conceivable, feasible and available.

Click Link Below for Application Notes:

Two Are Better Than One

 

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