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Schurter UHP Series SMD Fuse for High Currents

March 28, 2023
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Safe Tripping of High-Energy Overcurrent in SELV Voltage Level
• Very high breaking capacity of up to 3000 A
• Safe tripping in 15 s at twice the rated current
• Operating temperature range from -55 °C to 125 °C

With the increased availability of low-cost, high-performance lithium-ion battery cells, there is a growing need to manage higher and higher currents via low-cost, SMD-assembled PCBs.

The dedicated Schurter UHP fuse with rated currents of 50 to 100 A ideally meets the requirements for high breaking capacity and fast tripping in the event of overcurrents by galvanically separating these immense energies stored in Li-Ion batteries in a controlled manner.

Market Situation
With the success of the smartphone, Li-Ion batteries have gained enormously in importance. They are also the key to the success of the even more energy-intensive electric cars, which rely on this very technology. The price per kilowatt hour of a Li-Ion battery pack has fallen to a tenth in the last decade!

Power ∼ Current2
The higher the current on a PCB, the more power must be converted and also dissipated. It is therefore particularly important for such applications to have a reliable fuse that is capable of galvanically separating the circuit in time in case of an overcurrent. The UHP fuse developed by Schurter especially for this purpose disconnects the circuit at twice the rated current within a maximum of 15 seconds and ensures that the circuit board can be built more economically and in a space-saving manner.

High Energy Short Circuit
Li-ion batteries are capable of storing very high amounts of energy and releasing it again within a very short time - for instance in the event of a short circuit. The low internal resistance of the cells can lead to short-circuit currents of up to 3000 A, depending on the configuration. The UHP fuse is built so robustly that it can withstand such high currents at the SELV (Safety Extra Low Voltage) voltage level of up to 63 VDC, and even at 80 VDC it can still provide a performance of up to 2000 A.

Extreme Temperature Range
The UHP is designed to operate at ambient temperatures from -55 °C to +125 °C. This makes it ideally suited for applications in the automotive sector, but also for other applications with potentially large temperature variations.

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Schurter FMAC NEO, FMAD NEO 3-phase Block Filters

February 22, 2023
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3-Phase Block Filters for Machine Applications
• For machine applications according to IEC 60204-1
• Compact design with small footprint
• 1-stage filter with high efficiency

Schurter is expanding the successful FMAC NEO and FMAD NEO 3-phase filter families with new variants for machine applications. The new filters meet the requirements of machine safety according to IEC 60204-1. They are suitable for 3-phase or 3-phase-with-neutral conductor applications at rated currents from 16 to 230 A.

The FMAC NEO and FMAD NEO single-stage block filters have a particularly compact design with a small footprint and high performance at the same time. They are suitable for industrial or energy applications such as EV fast charging stations or battery storage.

IEC 60204-1: Machine Safety
Any machine or equipment that is to be brought onto the market in the EU and associated countries must bear a CE marking issued by the manufacturer himself. With this marking, the manufacturer guarantees that his product complies to all applicable legal and technical requirements. Minimum standards with regard to safety and occupational health requirements are defined in Europe by the Machinery Directive 2006/42/EC and the Low Voltage Directive 2014/35/EU.

The details for implementation are defined in separate specifications, known as harmonizing standards. One of these harmonizing standards is IEC 60204-1, which applies to electrical, electronic and programmable electronic equipment as well as to groups of networked machines, including control cabinet construction.

New Filter Variants
The new filter versions meet the requirements of this standard IEC 60204-1. The filters have a short discharge time of the capacitors, so that they have a touchable residual voltage of <60 V in 1 or max. 2 seconds after disconnecting the voltage. Further, the insulation value between phases and ground is at least 1 MΩ thanks to larger resistors. The filters are designed for currents from 16 to 230 A at an ambient temperature of 50 °C.

All family members have ENEC and cURus approvals and are recommended for applications up to 520 VAC. The standard variants are designed for industrial applications with leakage currents <13 mA. Special variants with leakage currents <3 mA are available for particularly leakage-critical applications.

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Schurter Type 6080 Inlet with Cordset

January 13, 2023
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IP54 in Plugged State with the Dedicated Power Cord
• Very high protection against dust and moisture
• V-Lock Cord Retention
• IEC 60320 and IEC 60529 compatible connection

Protection against dirt particles and moisture is becoming increasingly important. With the product type 6080 and the associated V-Lock power cable, Schurter is launching an IP54 device connection that also meets very high demands.

The newly developed Schhurter 6080 is an IEC 60320 and IEC 60529 compatible appliance inlet. In combination with the dedicated power cord, an IP54 protection rating is achieved when plugged in. An IP54 connection provides excellent protection against dust particles and is splash-proof.

Special Sealing Elements
The blue color of the V-Lock cable socket already indicates that something is different here. The appliance inlet as well as the connector of the power cord have been equipped with special sealing elements to achieve a higher IP-Protection.

V-Lock Cord Retention
The new device plug connection also has the industry proofed V-Lock cord retention system. Mechanical safety clips, which often must be designed for specific types, are no longer a necessity.

Application Areas
Wherever dirt, dust particles or splash water may occur, the new SCHURTER technology is the perfect choice. This may be the case in harsh working environments in industry. In the medical field, a higher IP protection rating is mandatory. This is simply due to the necessity of cleaning and disinfecting medical equipment on a regular basis, and even sterilizing it if required. The food processing industry has very similar requirements.

IP54 Family in Planning
The product type 6080 will soon be followed by other products. Schurter will equip a complete family of device connections with this innovative technology.

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Schurter FMAB NEO Block Filter

December 6, 2022

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Single Phase Block Filter, Protection Class II
• Protection class II without ground wire
• Filter with standard or high performance attenuation
• Excellent symmetrical attenuation
• Fully closed steel housing

Schurter expands the proven FMAB NEO single-phase filter family with new variants for protection class II applications. The new filter series without protective ground connection is available as a medical M5 version for a rated current range from 1 A to 20 A with plug-in terminals.

Protection class II, also known as protective insulation, means protection by double or reinforced insulation. All clearances and creepage distances must be doubled, and inside the filter double or reinforced insulation is mandatory. The new FMAB NEO filter series Protection Class II meets all these requirements: reinforced insulation inside the filter and the plug-in terminals have a large plastic collar. The filters are tested with 4 kVAC between L or N against the metal housing.

 

Applications
Protection class II applications do not have a protective ground wire. To ensure effective personal protection even without a protective ground conductor, protection class II devices feature additional insulation. Typical applications include power tools, audio and video equipment and many medical devices. Protection class II is even mandatory for a variety of medical applications. For example, medical devices for use at home must be of protection class II according to IEC 60601-1-11.

Approvals
The single-stage FMAB NEO filter family has a particularly compact design combined with high performance. It is suitable for applications in the temperature range from -40 °C to 100 °C and has ENEC and cURus approvals.

 

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Schurter OGN Fuseholder - THR (Through-Hole Reflow)

October 4, 2022

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Through-Hole OGN Fuse Holder for Fully Automated PCB assembly
• Suitable for fully automated PCB assembly
• Reflow capable
• Fully backwards compatible with OGN for THT
• Available with blister tape packaging

The Schhurter OGN fuse holder is a product that has proven itself over decades and has been continuously improved and expanded with new variants. It started with a THT version (Through-Hole Technology), followed by one for SMT (Surface-Mounting Technology). Now Schurter is introducing a third option, which closes the last gap: THR (Through-Hole Reflow).

Highly integrated electronic circuits are almost exclusively assembled with SMT components and soldered in a reflow oven. However, it is sometimes necessary to include THT components on the circuit board. This has a decisive disadvantage: THT components need to be soldered differently, a second soldering process is necessary.

The Solution: THR
In fact, THR components are through-hole components. They are specially designed for automated assembly and high thermal stress in the reflow oven. During the assembly process, a paste is first printed into the vias for the THT pins, and then the component is pushed through the solder paste. As the paste melts in the reflow oven, the liquid solder retracts into the vias due to wetting and capillary forces and forms the solder joint.

OGN: The Classic
The open fuse holder OGN is designed for 5x20 fuses of various types. It naturally complies with the tightened rules of glow wire resistance according to IEC 60335-1. If desired, it can be converted into a closed fuse holder by means of an optionally available cover.

Preassembled Variants to Follow:
In the near future Schurter will offer the OGN for THR pre-assembled with a 5x20 fuse in blister packaging (tape & reel). This according to customer requirements for fully automated PCB assembly. Just as Schurter is already doing with the OGN for SMT today.

 

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Schurter MSM RD Push Button Switch

August 15, 2022

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MSM
The new Design Line from SCHURTER
• For intuitively safe, reliable, and elegant design
• With modern dead-front LED illumination

With the Design Line MSM RD, Schurter extends the MSM product family of mechanical switches and breathes new life into conventional pushbuttons. The progressive modern look of dead-front displays provides expanded design options with the known intuitive features of tactile feel and optical feedback.
The new MSM RD variants are distinguished by its high-quality choice of materials. The switch housing is made of black anodized aluminum. With the combination of the special black translucent plastic for its ring lighting, the switch gives a very elegant, modern appearance.

Ring Illumination
While the DF black Light Guide material is translucent, it is very robust. The switch appears inconspicuously black when the lighting is inactive. It thus fits unobtrusively and discreetly into dark operating surfaces. If the illumination is active, the ring shines in the set color without any color shift despite the dark Light Guide material. Thus, special design effects or specific attention to detail can be created.

Variants
Like all our products, the MSM RD variants are characterized by the highest quality. As standard, the ring illuminated switches are available in different sizes as well as in different illumination colors. Depending on the variant, the switch can operate up to 10A.

Application areas - Intuitive Operation and Design
Many unsafe incidents are due to operational errors. As an example, criteria for intuitive operation of laboratory and medical equipment plays a major role in increasing the safety of the operating process.

What was once acceptable as a simple switch has become outdated due to higher demands being placed on the design and operation of a device.

Mechanical switches are still used for this reason because haptic feedback in combination with optical feedback is still considered the highest level of safety used to ensure human-centered design.

The Schurter MSM RD switch variants support the design of modern operator interfaces, which are more often made of dark plastic or glass surfaces. It combines intuitive feedback, high reliability, and elegant design in response to designer demands. The switch is not only "beautiful», but the materials are also suitable for outdoor use, because the black Light Guide material is also UV resistant

 

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Schurter DIN Rail Kit

July 12, 2022

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Mounting Accessory for Compact 1- and 3-Phase Filters
• Simple Mounting
• Metal Clip for Good Ground Connection
• Complete Mounting Kit

Schurter is now offering DIN rail mounting kits for quick and easy installation of panel-mount filters in the control cabinet. These kits are available for a selected range of existing 1- and 3-phase filters of the Schurter portfolio.

Simple Mounting:
Often, you are missing the right filter for installation in the control cabinet. Thanks to the new DIN rail clips, it is now possible to install selected filters intended for screw mounting in the control cabinet.

To do this, simply screw the new Schurter DIN rail kit to the filter using the screws provided and snap it onto the DIN rail. Thanks to the metal clip, a good ground connection of the filter housing to the rail is guaranteed. This is particularly important for best filter performance.

Filter Selection:
Due to the necessarily compact design, the selection of dedicated DIN rail filters is limited. The selection is much wider of chassis mount filters: There are filters with standard, high or even excellent filter attenuation. The chassis mount filters also cover a wider current range and a wide variety of voltages.

The new Schurter DIN rail kits are suitable for the following filters:
- FMAB NEO
- FMAB HV
- FMBB NEO
- FMBB EP
- FMAD CP

 

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Schurter EC12 Snap-In Appliance Inlet with Filter and Mains Switch

May 26, 2022

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IEC C20 Appliance Inlet with Filter and Mains Switch
• Compact Power Entry Module with Filter
• Optionally with Enhanced Surge Withstand Voltage
• V-Lock Cord Retention

Schurter expands the successful EC12 appliance inlet filter family with new variants for snap-in mounting. This allows the compact power entry module to be mounted even faster and easier.

The EC12 filter series combines an IEC C20 appliance inlet with a high quality 1-stage filter and power switch.

Snap-In Mounting:
New variants of the EC12 power entry modules feature two snap-in springs instead of the screw flange for even simpler and more efficient installation. Thanks to the high-quality springs, a tight-fitting installation is ensured with good electrical contacting of the mounting panel at the same time. The wide metal flange contacts the housing over a large surface area, thus enabling optimum filtering and shielding effect.

Applications:
The EC12 filter series is available as a standard or medical version and is used in devices that require particularly high resistance to interference. This includes IT or telecom systems according to IEC 92368-1 and medical equipment according to IEC 60601-1.

Filter versions with increased surge withstand voltage capability are also available. These have interference suppression capacitors of safety class X1 for surge voltages of 4 kV between L and N and Y1 for surge voltages of 8 kV.

The series is compatible with V-Lock cord retention device connection cables. The EC12 series is certified for currents up to 16 A/250 VAC according to IEC and 20 A according to UL/CSA at 125/250 VAC. It comes with ENEC, CQC and cURus approvals.

 

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Schurter Series 4750 IEC Strip-Block Type F

May 10, 2022

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• Choice from 2 up to 7 Outlets
• Cord Retention and Optional Light Pipes
• Hard-Wired Bus Variants Configurable
• Available in Black, Grey or White

The demands on power distribution units are very individual. For this reason, Schurter is launching the 4750 series, an appliance socket strip with maximum flexibility and an unprecedented range of variants.

For those who like to configure their power distribution units exactly according to their needs will find the perfect solution for every conceivable application in the new SCHURTER Series 4750.

The Wide Range of Variants
The number of outlets can be freely configured from 2 to a maximum of 7, whereby each outlet already has a cord retention system (horizontal or vertical). This is an indispensable requirement for power distribution units in data center applications or in medical technology.

Furthermore, the 4750 appliance strip-block is available in a wide range of Terminal variants (PCB, solder or Quick Connect versions) as well as with freely configurable light pipes to indicate an individual status.

To keep track in 3-phase systems, the 4750 series is available in three different colors white, grey or black.

Reduction of Manufacturing Effort
A highlight are four possible hard-wired bus variants (L/N/PE, N/PE, PE or PE/L), which again massively reduce the wiring effort while manufacturing. This as a further goal to offer a product, perfectly fitted to the customer's needs.

 

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Schurter Types 4761 / 4762 Waterproof Push/Pull Appliance Coupler

April 5, 2022

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Schurter presents the new waterproof IEC connector consisting of the appliance inlet type 4761 and the rewireable cord connector type 4762. With its high protection class IP 67 or IP 69K connected or unconnected with cover, this appliance coupler is perfect for supplying power to appliances used in harsh environments such as industrial, marine, laboratories or any type of outdoor appliances.

The Push/Pull locking system provides a strong reliable connection, yet at the same time ensures a break-away cable in the event of overdue stress. The blue shape and color of the pull-out mechanism indicates the pull-out direction. A clear catch sound is heard upon the seated connection. The connector style is similar to the international standards of IEC and UL/CSA 60320, but is distinguished by a special arrangement of the contacts, so as not to interchange with conventional power cords. This ensures the maximum power applied, IP protection and the cord retention. The connector can be temporarily submerged in water and can be cleaned with high-pressure hot water cleaners. Both components are very easy to terminate. The inlet 4761 is available with solder or quick connect terminals. The connector is equipped with conventional screw terminals, as commonly seen in rewireable connector designs. Thus, no special tools for wire assembly are necessary.

The appliance couplers are available in black and white. The dual components, appliance inlet and cord connector, can be ordered as complete sets, which simplifies the ordering processes and customer logistics. The inlet and connector are also available as individual components for separate inventorying. Accessory covers are available for both plug parts, providing a waterproof protection IP 67 in plugged state and IP 69K in an unplugged state. These protective covers also offer protection against pollutants, which can potentially contaminate the contacts.

The approvals of these connectors according to IEC/UL 60320 simplify the process for the equipment manufacturer to obtain approval of their appliances, because many equipment standards with respect to the power supply refers to these component standard.

Technical Specifications:
- Standards: IEC 60320-1, UL 60320-1, CSA C22.2 No 60320-1
- Approvals: ENEC, UL/CSA
- Ratings UL/CSA 15 A / 250 VAC, 60 Hz
- Ratings UL/CSA 15 A / 250 VAC, 60 Hz
- Maximum operating temperature: +120 °C
- Wire size connector: 0.75 - 1.0 mm2, 18 AWG - 14 AWG (0.82 – 2.08 mm2)
- IP protection degree IP 67 and IP 69K

 

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