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Schurter Introduces AVTS, AVTP & AVTT Radial Leaded Varistors - Surge Protection for Primary and Secondary Power Supplies

July 16, 2010

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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 DKFP, Extended Range of Current-Compensated Chokes

June 16, 2010

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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 Type FMBC & FMBD High-End-Compact 2-Stage 3-Phase EMC Filters

May 27, 2010

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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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Schurter EMC Solutions Offer Efficient and Economic 3-Phase Line Filters, Series FMAC ECO and FMBC ECO.

November 18, 2009

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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. 

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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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DD11 and DD12 – SCHURTER Presents the Most Compact Power Entry Modules for Safe Power Input

September 2, 2009

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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.

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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 Type FN2450 Low-Leakage EMC/EMI Filters with Ergonomic Design

August 19, 2009

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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.

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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's New 5150 Type Filter Offers a Simple Solution for Ghz Applications

April 29, 2009

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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.

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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 Introduces the New ESX10 Type Rail Mounted Variant for Electronic Overcurrent Protection in Automation Applications

April 28, 2009

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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.

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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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Schurter FMEB & FMEC Filters - Less Noise and More Stable DC Power Distribution

April 14, 2009

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Schurter extends its range of DC rated filters with the introduction of series FMEB and FMEC. These filters are especially optimised for use in DC applications, particularly those requiring increased attenuation of asymmetric disturbances. 

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Applications include DC supplied IT and telecom infrastructures, as well as branch and automation control circuits for the machine and transportation industries. When used in the electrical supply cabinets, the filters guarantee safe operation of the system by attenuating external disturbances.

The filters have a current rating of 30 A at 80 VDC and are offered in single and dual polarity output circuits. The single polarity FMEB filter is designed for a maximum operating voltage of 80 VDC, while the FMEC series offers connections for two polarities for a maximum + 80 VDC. The aluminium housing is potted and has metal flanges for secure mounting to the chassis. The input side is equipped with screw clamps and the output has 6.3 mm x 0.8 mm quick connect terminals. Other terminal configurations are available upon request.

 

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Finder's Surge Protection Devices (7P Series) Meet Statutory Requirements for Lightning Strike Protection

February 10, 2009

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Finder has announced the introduction of the 7P Series of Surge Protection Devices (SPD), developed specifically to comply with BS-EN62305: Protection Against Lightning, providing protection against lightning strikes, or surges caused by short circuit and contact switching in electrical systems.

The 7P SPD Series employs replaceable varistors, enabling the cost effective replacement of the active element of the SPD when required.  As Type 2 arresters for single-phase and three-phase electrical system, they will appeal to the design and manufacture of systems and electrical equipment for use in buildings, where the safety issues associated with lightning have to be addressed.

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There are four versions in the 7P Series, all of which provide visual and remote signalling of varistor status, providing a clear indication to building maintenance personnel when replacement is needed.

The publishing of the BS-EN62305 series fundamentally changed the way the UK addresses the issue of lightning protection for buildings and makes the assessment of the associated risks and their mitigation a statutory requirement.

Virtually all elements of a building’s structure, its electrical services and the electrical equipment within it must be considered for the risk aspects associated with the potential for lightning strikes.

Protection devices such as the Finder SPD range are employed to reduce the risk of hazards to life and physical damage to persons, reduce the risks of damage to structures and services and to minimise failure of electrical and electronic systems and equipment within the structure of a build.

Finder’s 7P series is available in 4 different versions:

Single-phase systems:
7P.21.8.275.1020 Varistor protection (L - N)
7P.22.8.275.1020 Varistor protection (L - N) + spark gap
protection (N - PE)

3-phase systems:
7P.24.8.275.1020 Varistor protection (L1, L2, L3-N) + spark gap protection (N- PE)
7P.25.8.275.1020 Varistor protection (L1, L2, L3 - N) + varistor protection (N-PE)

 

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