* Ultra-compact design
* Suitable for very high EMI disturbances
* Various mounting options
* V-Lock cord retaining option
* Fuseholder meets latest IEC standard

Today’s electronic equipment is designed to deliver high performance in a compact size. Often this causes problems affecting the equipment itself or other nearby devices due to the inherent electro-magnetic interferences being generated in and between the different systems. To meet these EMC challenges, high performance power entry modules must also keep pace, and such is the case with the new DD14 series from SCHURTER. The DD14 series packs remarkable functionality into a new generation of compact power entry modules.

The new DD14 combines an IEC C14 appliance inlet with 2-pole switch and 2-pole fuseholder. EMC performance is further enhanced with a depth-saving 2-stage filter. Shielding is optimized by screwing the metal casing of the filter to the panel, using its horizontal or vertical flange. A snap-in filter version eliminates the flange, consuming even less panel space.

The DD14 integrates the EMC filter directly in line with the power input. The two-stage filter design suppresses interference voltages more effectively over a much broader frequency spectrum than single-stage filters, thereby having a positive effect on electro-magnetic compatibility. Standard and low-leakage medical filter options are available for use in commercial or facilities ICT equipment according to IEC 60950 and medical equipment 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 DD14 is rated for current levels up to 10 A / 250 VAC according to IEC and 8 A 125/250 VAC according to UL / CSA. It is ENEC and cURus approved.

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• Prevents power semiconductors from thermal runaway
• Supports up to 60 VDC applications
• Reflow solderable at 260 °C
• Customer-specific version with shunt or overcurrent fuse
• Smallest dimensions

Schurter introduces its new RTS. The RTS is a particularly compact overtemperature protection device using advanced SMD technology. It is suited for the highest demands of protection in power semiconductors.

RTS stands for "Reflowable Thermal Switch". It was developed to protect highly integrated power semiconductors like MOSFETs, ICs, IGBTs, Triacs, SCRs, etc. from overheating. Before mechanical activation, the RTS can be mounted using conventional reflow soldering techniques with temperature profiles up to 260 °C.

Mechanical Activation
After having the RTS reflow soldered on a PCB, mechanical activation arms the RTS for tripping at 210 °C. This activation can be done manually or by fully automated means. In contrast to electrical activation, the RTS activation status is clearly and immediately visible to the installer. Furthermore, the third additional contact required for electrical activation is thereby eliminated.

Compact Dimensions, High Load Capacity
The new type of overtemperature protection shines with the smallest dimensions and highest load capacity. Operating currents up to 100 A at rated voltages of up to 60 VDC can be handled by the RTS, which is just 6.6 x 8.8 mm in size. Customer-specific variants are available with an integrated shunt or an additional overcurrent fuse. These further integrated functions are resulting in less space consumed on the printed circuit board. The Reflowable Thermal Switch meets the high reliability requirements of AEC-Q200 and MIL-STD.

Protection Against Thermal Runaway
Thermal runaway refers to the overheating of a power semiconductor due to a self-reinforcing, heat-producing process. The reasons for this are the ever increasing power density and the trend towards miniaturization of electronic circuits.

RTS protects power semiconductors not through a logic circuit but rather through basic laws of physics. In case of a thermal runaway, the RTS reliably interrupts the circuit precisely at the well-defined temperature.

Technical Data
• Rated Voltage 60 VDC
• Tripping temperature 210 °C
• Operating current up to 100 A

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FMAB NEO
• optional overvoltage protection
• very compact design
• attractive price/performance ratio

Schurter expands the successful range of chassis mounted filters for single-phase systems FMAB NEO with optionally available overvoltage protection (varistors). This is increasingly in demand, especially in regions with many thunderstorms. The single-stage filter series has a compact design with high performance at the same time.

Overvoltage pulses (e. g. lightning) often have a devastating effect on electronic circuits. This can range from malfunctions to complete destruction. In response to special customer requests, SCHURTER has therefore extended its popular and successful FMAB NEO filter family with varistor variants for surge protection. These variants are available on request. They have ENEC approvals for the entire current range as well as UL/CSA approvals from 1 A to 20 A.

The single-stage filter series has steel housings with a closed bottom. This effectively shields the filter, no matter how it is installed. The series is suitable for applications with high symmetric interferences – such as devices with semiconductors that control large outputs (e.g. professional coffee machines, devices with hot water supply, industrial electronics). The particularly compact filters are also ideally suited for medical and household appliances.

The filter series is available with push-in fittings or threaded bolts. Optionally, there are versions with stranded cable connection. All models have a metal flange for easy screw mounting on the housing.

The series is designed for currents from 1 A to 60 A at 250 VAC in accordance with IEC and UL standards. It has the ENEC and cURus approvals and is suitable for applications in accordance with IEC 60950. Variants with small leakage currents <80 μA (M80) or without leakage current <5 μA (M5) are available for medical devices in accordance with IEC / UL 60601-1.

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When Every Heartbeat Counts

Holger Urban, Product Marketing Manager, Schaffner International AG

It is apparent that the medical electronics market continues to grow and that this trend is unlikely to slow down any time soon. Every person who has access to advanced medical care will try to get the best support available and the best treatment possible to increase their quality of life. Due to changes in demographic and social standards, we expect further increases in demand on medical infrastructure within the next few years.

The ability to design customer centric solutions for home care or even robot-aided surgery drives engineering to the edge and to technologies inconceivable just decades ago. The central challenge to designers is to improve health without applying any additional risk to the patient.

EMC is now considered to be one of the most important design aspects that any new electrical or electronic system design needs to fulfill. It is therefore essential that designers should consider integrating EMC filters as soon as possible in the development phase. Selecting the right EMC filter could save time and prevent additional costs in later stages of the design approval process.

A good example of a medical application with limited space is automated syringe pump. Such pumps are directly attached to the patient through an insulating plastic hose. The medication delivery must be programmable and repeatable; this means that the control logic has to be reliable. That’s why EMC matters in order to ensure the pumps continue to operate as intended without interfering with (or being affected by) other pumps and equipment operating nearby (within a hospital for example). Therefore relevant EMC and safety standards need to be fulfilled. The medical Standard IEC60601-1 focusses on major safety points; some of these are applicable to the mains power entry where Schaffner has a range of solutions.

Specifying Components for Fulfillment of IEC60601-1

Here Schaffner offers a level of product certification which helps designers to meet the safety requirements of European and U.S. legislations. The approval certificate for Schaffner Filters according to IEC60939-3 includes a section where the filters compatibility to fulfill the requirements of IEC60601-1 is stated.

“The FN92XX filters (B-types in particular) comply with the requirements of the EN/IEC 60601-1 standard regarding creepage and clearance distances, leakage current and voltage withstand.”

Medical EMC filters also have to be designed to allow the customer to fulfill MOPP and MOOP (Means of patient and means of operator protection) for any medical application. Depending on the level of insulation needed, design of a custom filter solution can be considered.

The leakage current definition for electrical medical devices is an important topic which has the same purpose of reducing the risk to the patient. There are number of different connections to consider. The most severe level within the standard is CF (Class C floating type connection suitable for cardiac application) applied part, which is limited to 10µA in normal condition and 50µA in a single fault condition. Considering parasitic effects in a system the filter should not introduce any additional leakage current. However in less critical applications, EMC filters with very low leakage current can be considered as well. Such filters have higher performance compared to filters without any leakage currents. Leakage currents are directly related to the value of capacitors used in filters connected between Lines to Protective Earth (PE) (Y- Capacitors or Cy).

Performance Levels with Reduced Leakage Current

Schaffner offers standard solutions for different levels of leakage current requirements. In general the solution for medical applications is the so called B-type filters. These filters do not have any capacitance to PE and therefore do not add any leakage current to the system. It must be noted that the overall leakage current for the whole system needs to be determined, even with a filter which does not introduce any leakage current.

With removal of (Cy) capacitance to PE, the overall performance of the filter is reduced compared to the standard filter with Cy. Schaffner also offers so called EB-type filter to compensate some of lost performance as a result of no Cy.

In addition to the performance enhancement, EB-type filters increase immunity to electrical fast transients compared to the B-type. This will help customers comply with the IEC/EN61000-4-4 immunity tests.

Therefore Schaffner EB-Type Filters can be the best performing filters available in its class for a reliable medical Electrical design.

To conclude, EMC filters for medical applications should:

- fulfill the most stringent leakage current regulations
- offer the best size vs performance
- be designed for typical usage in medical environment

Overall its clear devices should help to increase the health of patient and should not pose any potential risk when applied to a human body. With a Schaffner filter, customers can easily solve their EMC issues and get products certifications without applying any additional risk to the patient.

Schaffner not only offers a number of “off the shelf” EMC filtering solutions for medical applications but also works closely with customers who require customized solution.

www.schaffner.com

Holger Urban Product Marketing Manager
+41 32 681 67 10 (direct)
holger.urban@schaffner.com

Frank Almer Manager Marketing Communication
+41 32 681 68 80 (direct)
frank.almer@schaffner.com

Schaffner EMV AG
Nordstrasse 11
4542 Luterbach
Switzerland
T +41 32 681 66 26
F +41 32 681 66 41
www.schaffner.com

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Schurter reduces the weight of the high current filters FMER SOL and FMCC SOL.  The successful AC and DC filter series with currents up to 2500 A have big housings and heavy weights. The product weight was significantly reduced with an optimized potting compound. In the FMER SOL series, filters with a rated current higher than 250 A are able to benefit from this weight reduction, while in the FMCC SOL series all variants do.

The FMER SOL filters are designed for rated currents from 25 A to 2300 A at 55°C ambient temperature, and voltages up to 1200 VDC. The filter series is suited for use on the DC side of the inverter in photovoltaic and other DC systems.

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 VAC or 760 VAC, they can be used in all high performance systems such as inverters for photovoltaic and wind power systems. Despite their high performance, they feature a compact, lightweight design.

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The Schaffner Group introduces ecosine evo, the new generation of passive harmonic filters with an evolutionary modular concept and unparalleled technology.

Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, is again setting a benchmark with its product offering of harmonics mitigation solutions. Ecosine evo combine superior technology to reliably mitigate excessive harmonics with an evolutionary modular product concept.

The new ecosine filters FN 3440, FN 3450 and FN 3452 which are designed for three-phase diode and thyristor rectifier, are achieving a THID ≤ 5% even without DC-link choke included in the drive. They guarantee compliance with the toughest requirement of IEEE-519 and other stringent international power quality standards while being the most compact passive harmonic filters available in the market. The filters offer excellent performance at rated power with minimal reactive power, even at partial or no-load conditions. With the installation of the new ecosine filters, the electrical infrastructure is unburdened and its utilization is much more efficient and reliable. Furthermore, the service life cycle of electrical equipment is extended and energy costs are reduced.

Thanks to the modular concept, the filter design also offers great flexibility. It allows Schaffner to provide the optimal solution by merely “plugging in add-on modules”, according to different installation requirements and motor drive setups. Thus utilizing the new Schaffner modular filters allows for the best tailored solutions for applications, aligning product offerings with the international market requirements and customer expectations.

Ecosine evo filters FN 3440, FN 3450 and FN 3452 are rated for 50 Hz/400 VAC, 50 Hz/500 VAC and 60 Hz/480 VAC grids, respectively, with standard power ratings available from 1.1 to 250 kW (1.5 to 300 HP for 60 Hz filters). They are available as open frame IP 00 and protection category IP 20 (IP 21 and NEMA 1/NEMA 3R (only in the US) as a future option). All filters are CE-marked, UL listed (pending) and RoHS compliant. The ecosine evo filters are easy to install and maintain and are be fully supported in Schaffner’s well known power quality simulator SchaffnerPQS3.

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EMC/EMI filters on the AC- and DC side of inverters and converters contribute significantly to the compliance with the EMC directive and do improve the system reliability. Schaffner presents the most compact and most modern products in the market, with the introduction of the new FN221x HV and FN331x HV series. It is based upon the combination of innovative component technology and design knowhow to enable economic EMC solutions between 250 A and 2’300 A.

Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, introduces the new FN 22xx HV and FN 33xx HV standard filters for high current applications for 690 VAC and 1’500 VDC PV inverters, converters and motor drives. These innovative filters are optimized for the requirements of photovoltaic-, power conversion-, energy storage- and motor control systems and take into consideration Schaffner’s extensive global application experience with AC- and DC power systems.

Along with appropriately sized 690 VAC EMC/EMI filters FN 331x HV on the line side, the new FN 221x HV DC filters help to meet the limits of binding EMC standards for PV installations in Europe and other regions. Further, the 1’500 VDC filter FN 221x HV will help to increase the service life of the solar panel, improve its reliability, and reduce potential interference radiations of the panel, by keeping away the inverter-born high-frequency and leakage currents.

FDIS recently approved the new international CISPR11, Ed.6.0 standard, which defines now the conducted emission limits at the DC power ports of “Grid Connected Power Conditioners”.

The extremely compact AC filters FN 331x help to meet the already well known EMC standards and are optimized to suit the most modern inverter design requirements of various power converter types.

The new filters will require much less installation space compared to traditional solutions, due to the optimized attenuation performance levels. They also offer minimum power loss related to the rating of the inverter and thus help to maximize the system efficiency.

Both bus-bar filter series are available with ratings from 250 A to 2’300 A. Versions without capacitors to ground are also available as standard product for specific AC- and DC power system requirements.

All models are CE, UL, CSA and ENEC (FN 331x HV) approved and RoHS compliant.

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Motor drive output filters protect motor windings against excessive voltage peaks and
inadmissible voltage pulse rise times generated by the inverter PWM output voltage. Dv/dt filters are
required to fulfill the IEC 60034-17/-25 standards defining the limits for IEC-and NEMA AC-motors
and prolonging their life times.

Schaffner, the international leader in the fields of electromagnetic compatibility, power quality and motor drive output filters, introduces the new FN 5060 HV standard dv/dt filter series for 690/600 VAC motor applications. These innovative filters are designed according to Schaffner’s patented concept which enables dv/dt filter damping performance without using resistors or capacitors. This simplifies the installation, saves mounting space and is a reliable long life time solution.

The new filters are designed to offer minimum power loss, low voltage drop and thus help to maximize the system efficiency.

Several industries can benefit from the use of the new 690/600 VAC dv/dt filter such as the chemical, cement, metal, oil and gas, mining, applications in buildings and infrastructure environments (pumps, fans, HVAC) and other industries.

Not only to be used in areas where pumps and fans are controlled by drives with short motor cables, the dv/dt filters from Schaffner are also recommended to be used for applications with frequent braking, danger of flash-over voltage and motors running at high temperature.

New and existing motors and installations will benefit from a longer life time and a continuous long lasting operation, if such dv/dt filters are used with variable speed drives.

The standard 690/600 VAC filter series are available with current ratings from 16 A to 1’200 A. Higher or other ratings can be engineered and delivered on demand.

All models are CE, UL, CSA and ENEC approved and RoHS compliant.

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Schurter is expanding its successful single-phase filter family, FMAB NEO, with new design series P and Q. This range of single-phase filters combines high performance in a compact design. The new series extends the range of current ratings up to 60 A, with extended temperature range from -40°C to 100°C.

The new FMAB filter family offers 3 different levels of design flexibility. FMAB NEO design N comes with two large X capacitors, that offer high symmetrical attenuation in the lower frequency range. The new filter design P contains two standard X capacitors for high symmetrical attenuation, while Design Q offers one X capacitor for good symmetrical attenuation. With the extended temperature range from -40 to 100°C, all filters are suitable for applications used in harsh environments.

The FMAB NEO filters have a polished steel housing with a closed filter base. The filter is thus effectively and completely shielded, regardless of 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, including professional coffee machines, devices with water heaters, and all types of industrial electronics. The compact filters are also suitable for medical equipment and household appliances.

The filter series is fitted with plug-in connections or threaded bolts. A version with wire connections is also available. The metal flange provides easy screw-on mounting.

The series of filters is designed for current levels from 1 A to 60 A at 250 V AC according to IEC and UL standards.The FMAB NEO 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.

Technical Data / Approvals
- 250VAC single-phase block filter
- Single-stage filter with good or standard attenuation
- Filter available ins standard or medical M5 / M80 version
- Rated currents: 1, 3, 6, 10, 12, 16, 20, 30, 60A (ENEC / UL / CSA) at 40°C
- Operating Temperature: -40°C to 100°C
- Chassis: Screw-on mounting, from top
- Quick connect terminals 1 – 20A, nut and bolt 30, 60A, optional wire leads

Application
- for applications with low ambient temperatures
- Design P for applications with high symmetrical interferences
- Industrial applications
- Commercial kitchen equipment
- Datacom equipment
- Medical equipment

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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.

Technical Data:
- 250 VAC single-phase block filter
- Single-stage filter with large X-capacitors
- Excellent symmetrical attenuation
- Filter available ins standard or medical M5 / M80 version
- Rated currents: 1, 3, 4, 6, 8, 10, 12, 16, 20, 30A (ENEC / UL / CSA) at 40°C
- Chassis: Screw-on mounting, from top
- Quick connect terminals 1 – 20A, nut and bolt 30A, optional wire leads

Application:
- For applications with high symmetrical interferences
- Industrial applications
- Household appliances
- Datacom equipment
- Medical equipment

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