Schurter expands its EMC output filter product portfolio, introducing sine wave output filters series FMAC SINE and FMAC SINE DCL.

The Schurter Sine Wave Filters series FMAC SINE and FMAC SINE DCL are designed to convert output voltage wave forms produced by PWM frequency converters into low distortion sine wave forms for motor drive and power transformation applications.

The Schurter Sine Wave Filters are designed for use with 500 VAC installations and currents from 4A upwards.

The Schurter Sine Wave Filters are suited to a wide variety of applications including frequency converters in uninterruptible power supplies, elevators, heating , ventilating- and air conditioning systems, traction and conveyer systems.

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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, Sschurter 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, Schurter offers its own EMC measurement service that makes it possible to find the most cost-effective filter solution.

Technical features:
– Rated voltage 1200 VDC
– Rated current 25 A to 2300 A
– Connections: screw terminals 25 - 150 A; copper bars 250 - 2300 A
– cURus approval: 600 VDC 25 - 150 A, 1000 VDC 250 - 2300 A

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Schurter is expanding its successful DKFS family of SMD chokes with a new horizontal version. With it, the use of very highperformance, compact chokes is possible in low-profile assemblies.

Modern electronic circuits require components with the highest performance in ever smaller profiles. The new horizontal DKFS chokes are ideally suited for this purpose. Compared to vertical models, they have higher inductance with the same rated current. Thanks to SMD leads, they can be assembled using the same reflow soldering process as other components. Possible application areas for these chokes include switch-mode power supplies, dc and stepping motor drives and frequency converters.

The rated voltage for DKFS devices is 250 VAC. These common-mode chokes are designed for temperatures of -40°C to +125°C. They will also continue to be available in vertical models as well as in the new horizontal design. The DKFS series meets the requirements of IEC/EN60938 and is UL1283 approved.

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Technical features:
- Rated voltage 250 VAC
- Rated current 400 mA to 4 A
- Inductivity 0.7 to 39 mH
- SMD leads
- Attenuation of common-mode interference

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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 costeffective 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.

- Very high attenuation
- Nominal current: up to 10A at 250 VAC (ENEC/UL/CSA) and 15A at 125/250 VAC (UL/CSA)
- Screw-in or studded assembly / snap-in assembly
- Connections: quick-connect, solder, stranded-wire or pc-board terminals
- Filters available in standard and medical versions
- Optionally available with the V-Lock cable locking system

Schurter's IEC inlet with EMI filter, series 5123, is well suited for switched-mode power supplies, which require high interference suppression. Examples include units in the IT, medical and the test & measurement sectors.

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Schurter, as a leading supplier of EMC products is constantly improving the use of its products. The Schurter common mode chokes datasheets now contain impedance diagrams and cURus approval mark.

Current compensated chokes are used to attenuate asymmetrical noise. Such common mode noise is typical for switch circuits such as switching power supplies or inverters.  The compact chokes guarantee efficient disturbance suppression on the printed circuit board. Very compact types for surface mounting are also available as are chokes with wire leads for easy assembling for high power applications.

According to the noise level design engineers can easily select the right choke using the impedance diagram.  This may help to avoid many costly and time consuming measurements. Impedance diagrams are now available for all common mode chokes.

A safety certificate can be obtained even quicker due to the new UL approvals for our chokes.  All Schurter common mode chokes have now the combined UL and CSA approval mark cURus. They were successfully tested according to the UL 1283 and CSA 22.2 No. 8 standard. Approval marks and standards are now listed on all the data sheets.

Technical Features
- Rated Voltage 250 / 760 VAC
- Rated Current 300 mA - 50 A
- Rated inductance 0.5 mH - 100 mH
- Operating temperature -40 - 125 °C
- Multiple housing options available

Applications
- Switching power supplies
- Inverter
- Industrial electronic
- Lighting

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The Schaffner Group has expanded its product range by the single-stage FN9280 and double-stage FN9290 IEC inlet filters. The new EMC/EMI filter modules with type C14 IEC appliance inlet set the benchmark due to their ultra-compact design, patented combined switch and fuse holder unit, the versatile flange mount system for fast and flexible installation and are either deliverable with fast-on or spring cage terminals.

Despite the compact design of the filter with a height of only 46mm, the combined unit with dual fuse holder provides extra space for a spare fuse. The dual pole power switch disconnects all poles of the device from the mains and can be removed for maintenance thanks to the integration into the combined unit in order to specifically avoid accidental connection and power-on.

For cabling inside the device, the new IEC inlet filters are available with proven fast-on tabs or spring cage terminals for faster and vibration-proof wiring.

The new flange mount system with either horizontal or vertical mounting holes provides maximum flexibility for front or back mounting. Because of the RF tight joining of the flange frames with the deep-drawn steel housings an optimal shielding even against strong magnetic fields has been achieved.

The FN9280 series is equipped with proven single-stage EMC/EMI filters. The FN9290 series requiring the identical panel cutout has a double-stage EMC/EMI filter with an attenuation of up to 80dB and is ideally suited for applications with higher interference levels. The B versions of both series with a minimal leakage current of 5uA max. are suited for use in medical devices. The FN9280 series can optionally be delivered as E version with earth line choke for additional asymmetric interference suppression.

The new series are designed for currents from 1 to 10A with a rated voltage up to 250Vac. They are approved for worldwide use according to UL, CSA, ENEC and CQC and conform to RoHS and REACH. The B-versions comply with the requirements of the active third edition of the safety standard IEC/EN60601-1 for medical devices.

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Schaffner has added the RB series to its product program of current-compensated chokes. The chokes are available as one- and three-phase designs in horizontal and vertical construction for currents from 16 to 50A.

Characteristic of the RB series are the open construction and clear separation of the windings by the use of a new bobbin design. With forced cooling the chokes can operate with up to 80A. The air gaps and leakage paths are designed for working voltages of up to 600Vac /1000Vdc.

Particular value was set on the pin-out of the chokes to permit a simple layout of the circuit boards. A straightforward circuit path design has advantages in terms of losses and noise suppression, especially for applications at higher current levels.

An application note also provides important information how to integrate EMC/EMI filters into circuit boards.
As a result, the EMC/EMI filtering can be incorporated into the circuit board of power electronic devices, such as inverters for drive applications, for photovoltaic or for charging stations. The RB chokes can be mounted directly to the circuit boards and are thus applicable for electronic devices that are exposed to vibration.

RB chokes comply of course with the RoHS and REACH requirements.

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Honeywell Sensing and Control, Schaffner & Schurter

Three big names for medical applications provides medical OEMs and designers with a broad suite of high performance and reliable Sensors, Switches, Filters,  IEC Inlet Filters, Power Entry Modules, Connectors, Circuit Breakers, Fuse Holders, Chokes and Touch Panels used in hundreds of medical applications.  Doctors and patients must trust that the medical products they use will perform safely, reliably and effectively.  These manufacturers understand the needs of the medical industry and work closely with medical companies to provide the right products for each application. The combination of product leadership, application expertise and stable delivery make these three expert manufacturers the natural choice when choosing the right electrical requirements for your medical applications.   E Preston Electrical is a franchised distributor for each of these manufacturers offering long term support for your future needs.

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Honeywell Sensing and Control, Schaffner & Schurter

Whatever the application:  Infusion Pumps, Respiratory Machines, Anesthesia Machines, Ventilators, Dialysis Machines, Oxygen Concentrators, Diagnostics Appliances; not to mention the many variety of devices required for Therapy, Monitoring or Laboratory applications - all requiring reliable high standard products these manufacturers offer within the medical industry.

Honeywell, Schaffner and Schurter products are ideal for use in medical appliances, meeting all the typical requirements such as durability, reliability, safety orientation and design ensuring hygiene as well as user-friendliness and maximum functional integration.

Honeywell, Schaffner and Schurter supports medical equipment manufacturers worldwide, through technically sophisticated and well-engineered products, in their development work. That is why they consistently align innovation process with the technological trends of this cutting-edge industry.

  HONEYWELL                                   SCHAFFNER                                        SCHURTER

     Medical Applications                      Medical Applications                       Medical Applications    

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The FN5040/45 sinusoidal output filters reduce the extra losses in AC motors and help to prevent premature failures and expensive downtimes. They are precisely matched to the technical requirements of modern drive systems and are particularly impressive when used with long motor cables.

With the introduction of the FN5040/45, Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, is further expanding its range of products for improving reliability in motor drive technology. The new sinusoidal output filters smooth the modulated output voltage of modern drives and provide the motor with a clean sinusoidal voltage with low residual ripple. This largely prevents premature ageing or destruction of the AC motor due to high dv/dt, over-voltages, bearing currents or overheating due to extra losses. Expensive downtimes are avoided, and premature service or repair is eliminated.

The new filters are available in a compact open frame design (FN5040) or as a user-friendly packaged version (FN5045 - IP20). The cable-shield support brackets integrated into the housing facilitates work for the installer and favours savings of installation time and costs. Easily understood application instructions allow it to be safely used even beyond standard specifications, for motor frequencies up to 200 Hz or motor cable lengths up 2000 meters. Both models are designed for rated currents of 4.5 to 1200 A and for networks up to 3x 500 VAC (+/- 10%). The UL listing is currently in preparation.

Applications in building technology (pumps, fans, HVAC) benefit equally from the use of the new sinusoidal filter, as do industrial applications with very long motor cables or with several motors connected in parallel.

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EMC/EMI filters on the DC side of PV inverters contribute significantly to the compliance with the EMC directive and to an increased system reliability. With the introduction of the FN 2200 range of filters, Schaffner presents the most compact solution in the market today. It is based upon the combination of innovative technology with years of application specific experience.

Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, introduces the new FN 2200 standard filters for the application on the DC side of PV inverters. These innovative filters are optimized for the requirements of photovoltaic systems and make available, for the first time, Schaffner’s extensive application experience with PV systems to the broad market.

Along with appropriately sized EMC/EMI filters on the mains side, FN 2200 DC filters help to meet the limits of EN 61000 and other binding EMC standards, which are often referred to for PV installations in Europe and other regions. Further, they help to increase the service life of the solar panel, improve its reliability, and reduce potential interference radiations off the panel, by keeping inverter-born high-frequency and leakage currents away.

The new FN 2200 filters require up to 30% less installation space compared to traditional solutions. They also convince with minimum power loss of <0.0008% related to the rating of the inverter and thus help to maximize PV system efficiency.

FN 2200 is available with ratings from 25 to 1500A at 55°C and for voltages up to 1200VDC. Filters without filter capacitors to ground (FN 2200B) are available upon request. All models are UL, CSA, and ENEC approved and RoHS compliant.
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