Schurter presents its new standard DC filter series FMER SOL suited for use on the DC side of the inverter in photovoltaic systems and other DC systems.

Modern solar inverters, that use MPP (maximum power point) trackers, generate disturbances into both the grid’s AC power line, as well as the DC side of the solar module. An AC filter is normally used on the grid’s AC power line, but the noise generated on the DC side tends to be overlooked.  EMC standards EN 61000-6-3 and EN55014-1, however, also put limits on the noise generated from lines not connected to the grid, such as for example the line to the solar panels. Meeting these limits can be achieved by using a DC filter on the DC side of the inverter.

Large solar inverters installed in electrical installations will generally require a cooling system. Components which provide high temperature resistance simplify the system and reduce the energy needed to cool. The FMER SOL filters are designed for rated currents from 25A to 1500A at 55°C ambient temperature, and voltages up to 1200VDC.  The filters are cURus and ENEC approved up to 75°C ambient temperature, with corresponding reduced rated currents.

The FMER SOL DC filters are designed with screw clamps for types up to 150A and copper bars for types upwards of 250A. Other types of connections, such as wires or copper bars <250A, are available on request.  Small adjustments can also be made to the electrical circuit or to the filter housing on request.

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Technical Data:
- Rated currents: 25A to 1500A at 55°C
- Operating voltage: up to 1200VDC
- Temperature range: -40°C to +100°C

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Schurter series 5008 inlet, according to IEC C8, with integrated EMI filter meets the increasing demands of IT, medical and consumer appliances for cost reduction and downsizing. The 5008 inlet provides a maximum performance and cost savings in a lightweight and environmental friendly package. The new design is now available with options for screw and snap-in mounting version.

The new 5008 series combines an IEC C8 inlet with a line filter for low power applications.  The EMI filter is dimensioned as a 1-stage filter for rated currents up to 2.5 A according IEC respectively 6 A according UL and available as standard or medical version. The integrated EMC filtering mounts directly at the point of power entry, ensuring an optimal effect on the electromacnetic compatibility performance of the unit.

Mounting options include screw-on or snap-in mounting. The snap-in mounting technique reduces the assembly costs considerably for reduced handling and ease of assembly. The connection is made with quick-connect terminals. Optional solder terminals are also available.

The unit is designed for use in IT, medical and home applications appliances. The 5008 is the optimal solution, combining uncompromised features and performance with compactness of design to meet the increasing demands in cost efficiencies and ecological concerns. The series is ENEC and cURus approved and complies with IEC/EN standards for office and medical equipment, 60950 and 60601-1 respectively.

Technical Features:
* Appliance inlet IEC C8 acc. to 60320 with EMI filter
* Current ratings: up to 2.5A at 250 VAC (ENEC/UL/CSA) or  A at 125/250 VAC (UL/CSA)
* Screw-on mounting and snap-in mounting
* Standard and medical version

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To add a third protective element to fuses and filters, SCHURTER now also offers overvoltage protection components, thereby making it possible for users to obtain all components required for the electrical protection of their electronic appliances from one source.

SCHURTER now offers radial leaded varistors, also referred to as MOV (Metal Oxide Varistors), which help to protect electronic circuits against surge transients, such as can be caused by lightning strikes and switching of contacts and inductive loads. Varistors are suited to a wide variety of applications including switching mode power supplies, ballasts and motor protection used in areas such as industry, telecom and medical technology as well as in consumer goods.

There are different types for various applications fields available: AVTS for secondary protection, AVTP for primary protection, and AVTT for 3-phase applications. The varistors, all approved according to IEC 61051, UL 1449, UL 1414 as well as CSA C22.2 and conforming to RoHS regulations, are available in plastic bags, taped and reeled and in ammo packaging.

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Schurter has extended its range of DKFP current compensated chokes and offers now rated currents from 300mA to 10A.  The DKFP chokes series cover now inductance values from 1 mH to 100 mH.

Schurter announces several new current ratings to its popular DKFP series.  The rated voltage of the DKFP compensated chokes is 250 VAC. The chokes are designed for temperatures of between -40 °C and 125 °C. The chokes are available in vertical or horizontal versions.  The DKFP current compensated chokes are highly effective in suppressing common-mode interference. The DKFP current compensated chokes may be used in line filter circuits, frequency converters, switch-mode power supplies and solar converters.

Technical Features:
- Rated Voltage 250 V AC
- Rated Current 300 mA to 10 A
- Rated inductance 1 mH to 100 mH
- Multiple housing options available
- Design complies with EN 60938

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Schurter expands its filter product portfolio, introducing power line filter series FMBC NEO for 3-phase-systems and FMBD NEO for 3-phase-systems with neutral.

The FMBC NEO 3-phase filters are arranged for use with 3x 277/480 VAC and 3x 300/520 VAC installations and the FMBD NEO 3-hase filters with neutral are arranged for use with 3x 300/520 VAC intallations.

The FMBC NEO filter is available from 7A and the FMBC NEO filter is available from 8A. These new compact EMC filters in NEO design are especially suited for use in drive systems, engineering installations and places where frequency inverters cause electromagnetic disturbances.

With these new 3-phase power line filters, Schurter focuses on effective EMC solutions.

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FMAC ECO / FMBC ECO – Cost optimized 3-phase line filters

SCHURTER presents its new 3-phase line filters, series FMAC ECO and FMBC ECO. These compact and cost optimized filters are in ECO designed and especially suited for use in drive systems, engineering installations and places where frequency inverters cause electromagnetic disturbances. 

The EMC filters are arranged for use with 480 VAC installations and are available in single or two stage versions. The FMAC ECO single stage filter is available from 10A, while the two stage FMBC ECO filter from 8A. The FMBC ECO series has a leakage current of just 5 mA, making it ideal for use in installations equipped with residual current circuit breakers. The filters can be mounted lengthwise or upright which provides maximum flexibility in design. With these new 3-phase line filters, SCHURTER focuses on costs savings while efficiently solving EMC problems.

The series has ENEC approvals. Approvals to cURus have been applied for.

Technical features:
-  3-phase line filter for 480 VAC
-  Rated current range FMAC ECO (single stage): 10 – 150 A
-  Rated current range FMBC ECO (two stage): 8 – 115 A
-  2 mounting options
-  ENEC approval, UL pending

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Maximum Functionality within Minimal Dimensions

The latest power entry modules, series DD11 and DD12, from Schurter are extremely compact and robustly designed. The excellent performance makes them suitable for nearly any application using detachable power.

The DD11 is equipped with multiple functions including an appliance connector, switch and fuseholder. The DD12 combines the same functions and additionally includes a line filter. The compact design makes the series ideally suited for the use in equipment with limited space and more demanding electrical and mechanical requirements. Areas of applications include IT and telecom particularly one rack unit (1RU) enclosures as well as medical, office, household appliances and automation. The series mounts to the panel with screws.

The filtered version has a broad metal flange, ensuring optimal contact to the appliance chassis for ideal shielding and filtering. Special filters with enhanced voltage withstand are available on request. The series is ENEC and cURus approved and complies with IEC/EN standards for office and medical equipment, 60950 and 60601-1 respectively.

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Schaffner, the international leader in combining electromagnetic compatibility and power quality, launches the new compact single-phase EMC/EMI filter FN 2450. The low-leakage filter FN 2450 expands the Schaffner product offering of suppression components in plastic housings, which optimally combine innovative lightweight designs with a high level of functionality, safety and ergonomics.

The innovative use of plastic materials and the elimination of potting compound allow a significant weight reduction, in comparison to conventional EMC/EMI component designs. The EMC-compatible HF contact to ground is ensured by a metal base plate.

Integrated terminals in the housing enable reliable contact from the top with the automatic torque wrench. Built-in safety covers, which for the purpose of installation can be easily folded forwards and backwards using a captive swivel mechanism, are provided as standard for protection against unintended contact with live clamping elements.

The low-leakage EMC/EMI filters FN 2450 are designed for rated currents from 6 to 20A (at 55°C) and for single-phase networks ≤250VAC. All versions are distinguished by minimal filter leakage current and are particularly suited for use with sensitive residual current protective devices, as well as for strict requirements with regard to operator and fire protection. The compact filters are UL, CSA and ENEC approved and comply with the requirements of the RoHS directive.

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Schurter presents a breakthrough product, providing simple and universal EMC for high frequency applications, using X2Y® filter technology. Series 5150 possesses broadband suppression properties to 1 GHz and combines them with the most simple and universal power input.  This integrated and compact design provides an easy, safe and cost effective alternative to existing market solutions and opens new opportunities in the filtering of high frequencies.

Until now, X2Y® filter technology is known only for EMI protection in DC circuits. With the introduction of the Schurter 5150 series, the application of X2Y® is now extended to the area of AC power input. The technology is applied in place of X and Y capacitors, typically used in line filters today. It combines the X and Y capacitors into one component, thereby eliminating the leads connecting the capacitors and reducing parasitic impedances to a minimum.  This results in broadband suppression into high frequency ranges.

The double shielding between the X2Y® filter and filter casing, together with the broad metal flange can serve as an alternative for feed-through and multi-stage filters.  The compact package is designed for front- or rear-side mounting and uses the same panel cutout size as a typical filtered AC inlet. Filter variations include types for standard, medical and industrial applications.

The breakthrough design of the 5150 is the first of its kind to be safety agency approved for use in AC applications according to IEC and UL. It is ENEC approved up to 10 A 250 VAC and cURus approved up to 15 A 250 VAC.  Application examples include equipment for measurement engineering, data encryption, medical engineering, IT and telecommunications. It is suitable for use in office and medical applications in accordance with IEC/EN 60950 and/or 60601-1.

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E-T-A Circuit Breakers has introduced a new version of its compact ESX10 electronic overcurrent protection product for automation applications. Designed to reduce costly downtime and danger to personnel on production lines, the new ESX10-T is ready for direct rail mounting, singly or in groups. Single or group signalisation is quickly attainable.

The type ESX10 Electronic Circuit Breaker provides electronic overcurrent protection according to UL2367 for 24V DC control circuits and load currents from 1A to 12A: in the event of overload or a short circuit, the faulty load will be disconnected electronically by means of a mosfet in the output circuit of the protector. It ensures selective disconnection of 24V DC switch-mode power supply (SMPS) loads while optimally matching the application requirements.

The E-T-A ESX10 provides active current limitation to 1.8 or 1.5 times its rated current. This allows capacitive loads of up to 20,000μF or lamp loads to be switched on without affecting other loads on the power supply. At the same time, this electronic active current limitation responds much faster to overload or short circuit conditions than switch-mode power supplies: the ESX10 will shutdown electronically a single faulty output, while allowing all other load circuits connected to the same SMPS to continue working as normal.

The E-T-A ESX10-T is just 12.5mm wide and can be mounted directly on a DIN/EN rail. All electrical connections are then made by means of convenient screwless terminals. Status indication is provided by a multicolour LED plus an integral short-circuit proof status output or potential-free signal contact. In the event of an overload or short circuit, the load circuit may be re-activated electronically via a re-set input, or by a manual ON/OFF button. The ON/OFF button also allows manual disconnection when starting up a system or during maintenance.

For processes powered by 24V DC switch-mode power supplies without circuits protected by a device such as the ESX10, an overload in a single circuit will cause the power supply to shut down the output to all the circuits it supplies. On recovery it may go into ‘hiccup’ mode. Costly downtime, scrap and even danger to personnel may result. Traditional protection solutions do not provide the answer. Circuit breakers with fast operating characteristics would be likely to cause nuisance trips during current peaks and switching on of capacitive loads. On the other hand MCBs are too slow, and neither delayed operation nor high performance circuit breakers will respond adequately in this situation to overcurrents. The power supply will therefore switch off completely, bringing all connected loads, i.e. the entire system, to a standstill.

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