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Schurter FRM-A and DRM-A Fuse Holder / Fuse Combination

April 27, 2023
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An Optimised Unit for Demanding Requirements
• Designed and optimised for Avionics applications
• FRM-A: Ultra-compact, light and made for harsh environmental conditions
• DRM-A: Whisker-free ceramic fuse with fast tripping characteristics

Very small, light and robust: These are increasingly important requirements of the Avionics industry for the components of their suppliers. Schurter addresses this need with the FRM-A and DRM-A fuse holder/fuse combination.

Minimized dimensions and low weight of Avionics components, their reliability and efficient maintainability are elementary requirements to keep operating costs low. The pressure to reduce the carbon footprint and operate sustainable aircraft fleets is driving the industry. Schurter addresses this need with the most compact and robust Avionics qualified fuse holder on the market, the FRM-A, and the matching SMT fuse DRM-A with a fast-tripping characteristic.

FRM-A: Ultra-Compact and Powerful
It is particularly the modest dimensions that make the Schurter FRM-A closed fuse holder a great one. Not only is it the most compact in its class, but it also shines with its enormous robustness and IP67 protection. Successful vibration, shock and salt mist tests confirm this in an impressive manner. The FRM-A has been developed exclusively for the SMT ceramic fuse DRM-A

DRM-A: Using Gold Against Whisker
Tin whiskers represent a risk for short circuits in electronics. The underlying physical process has not yet been fully identified. However, the problem has always been circumvented by adding lead. But lead is often an undesirable element (RoHS guidelines). The DRM-A therefore completely dispenses with a
lead-containing coating and relies on gold in its place. Gold-plated end caps offer no surface for whiskers to attack. The DRM-A, which was developed specifically for Avionics applications, is suitable wherever the highest demands are made on reliability and robustness. But this does not necessarily have to be at an altitude of 50,000 feet and installed in the FRM-A. Thanks to its design, it is also ideally suited for industrial and telecom applications.

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Schurter Membrane Switches with Integrated 7-Segment Display

April 25, 2023
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In the shadow of the popularity of touchscreens, the membrane switch can often be somewhat underrated. Yet even the development of the membrane switch has not stood still in recent years.

Schurter offers an integrated solution of a membrane switch with numeric display that is easy to mount and allow an overall thickness of less than 2 millimetres.

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Home Page: https://www.epreston.co.uk/epblog/

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Schurter Smart Ecosystem

April 14, 2023
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The Smart Ecosystem combines smart hardware components with the Schurter Cloud. By using the Smart Connectors, you can easily and securely connect your devices to the cloud and make them IoT-enabled.

Highlights:
• Monitor, control and configure your devices from anywhere
• Smart interface (API) for seamless integration with the customer cloud
• Smart Connector app for easy configuration of your device
• Secure and reliable data transmission and storage

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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Schurter Smart Connector DT31 external

April 14, 2023
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The Smart Connector DT31 can be connected easily, directly and without complex installation to any device with an IEC 60320 device connector. This allows users to quickly and inexpensively integrate their devices into the modern IoT world.

The DT31 can be easily and directly connected to any device with an IEC 60320 C14 device connector. No mechanical installation is needed. This allows users to quickly and inexpensively integrate their devices into the modern IoT world.

Thanks to the integrated V-Lock cord retention system, accidental disconnection is prevented.

Highlights:
• Flexible for immediate use without installation
• Illuminated button for device control
• Compact design with mounting bracket
• Safe and easy operation
• Connection via WiFi

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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Schurter Smart Connector DS11 PEM

April 14, 2023
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The Smart Connector DS11 is the world's only Power Entry Module with built-in WiFi and a serial interface for data transmission.

The Smart Connector DS11 is the world's first intelligent device connector that can be installed in virtually any appliance. Thanks to particularly compact dimensions, it offers real added value for device manufacturers to easily and cost-effectively create "smart" products. A serial interface to the device processor enables the implementation of data visualizations, energy and asset management, the provision of device maintenance information and other cloud-based services.

Thanks to the integrated V-Lock cord retention system, accidental unplugging is prevented.

Highlights:
• First of its kind on the market
• The most compact Smart PEM (Power Entry Module)
• Enables all conceivable web services
• Bi-directional connection from the cloud to the device processor
• Connection via WiFi

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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Schurter Smart Connectors

April 11, 2023
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Intelligent Power Entry Modules
• First product of its kind on the market (DS11)
• Device communication via WiFi
• IEC 60320 Compliant
• Power entry module DS11 with, and standalone version DT31 without, serial interface

Schurter presents the new Smart Products. The internal Smart Connector DS11 - the first product of its kind in the world - and the external Smart Connector DT31 make it easy to transform conventional electronic devices into smart devices.

DS11
As an intelligent power entry module, the DS11 can be integrated into electronic devices and systems. The DS11 has a serial interface for communication with the host device and is IEC-60320 compliant. This allows plant and equipment manufacturers to offer their customers extensive additional functionality in no time at all - without the need for costly development and engineering.

DT31
The DT31 is an external plug-and-play and retrofit smart connector. It can be quickly connected to an existing device via an IEC60320 C14 connector without complex installation.

Smart Ecosystem
Schurter's new Smart Ecosystem is a cloud service to which the Smart Connectors are connected via WLAN. The DS11 as well as the DT31 can be controlled and their data recorded via the secure SCHURTER cloud. Basic cloud services are included free of charge, an upgrade is possible at any time.

Applications
The two new Smart Connectors impress with their versatile applications: Preventive maintenance and management of electronic device fleets, monitoring and visualizing processes, recording the energy consumption of devices and much more.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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Schurter 5121 Appliance Inlet Filter

March 30, 2023
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IEC C14 Appliance Inlet Filter
• Ultra compact IEC C14 inlet filter
• Optimal high frequency mains input filtering
• Fully closed steel housing
• V-Lock cord retaining

Schurter launches a new very compact filter series with the 5121 appliance inlet filter. An IEC C14 inlet is surrounded by a closed metal housing and thus effectively shields the mains input. The new filter series is available as a standard or medical technology version for a rated current up to 10 A / 15 A with wire connections.

The mains input is often a critical opening in the housing. Interference via the power cables and interference radiated through the opening gets into, or out of the housing. The new 5121 appliance inlet filter series offers a very compact solution to prevent interference.

Applications
The new filter family is especially suitable for applications with very small installation depths that require high-frequency filtering of the mains input at the same time. The 5121 appliance inlet filter reliably shields high-frequency interference conducted through cables or radiated thanks to a completely closed metal shield and capacitors. Interference in the lower frequency range can be reliably attenuated with additional capacitors and chokes on the PCB. Especially the interferences in the low frequency range < 10 MHz are mainly conducted through the cables, which means that the filter components do not necessarily have to be located at the mains input and can simply be placed on the printed circuit board. Schurter offers a wide range of current-compensated and linear chokes for this purpose. Typical applications are medical, laboratory, audio- and video equipment and industrial systems.

Multiple Mounting Versions
The new filter series is available in three mounting versions: Screw mounting from the front side with plastic flange, screw mounting from the front or rear side with metal flange and snap-in mounting from the front side. All variants guarantee optimal electrical contact of the mounting panel thanks to the wide metal flange. The closed filter housing acts as optimal shielding of the mains input.

Approvals
The 5121 series is certified for currents up to 10 A/250 VAC according to IEC and 15 A according to UL/CSA at 125/250 VAC. It has ENEC, CQC and cURus approvals.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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Schurter FMAB NEO PE-Choke Filter

March 30, 2023
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Single Phase Block Filter
• Filter with ground choke
• Excellent symmetrical attenuation
• Fully closed steel housing
• Optional wire leads

Schurter is expanding the successful FMAB NEO single-phase filter family with new variants. The filter is now available with an additional ground line choke to suppress high-frequency interference on the earth conductor. The new filter series is available in standard and medical versions for a rated current range of 1 A to 20 A with quick connect terminals.

Standard filters only filter the pole and neutral conductors, the earth line stays untouched. This can be a problem with the occurrence of high-frequency earth conductor currents, because in this case even the best filter can’t do any improvements. The new filter versions with integrated earth conductor chokes
offer a simple solution.

Ground Choke
New variants of the FMAB NEO single-phase filters are equipped with a ground line choke. In addition to the current-compensated choke on the pole and neutral conductor, the mains filters have a second choke on the earth line. The ground line choke is located between the filter input and output. The filters
therefore have two earth connections at the input and output, whereby the earth connection at the mains input is insulated from the housing. This ensures that possible high-frequency interference currents on the earth conductor cannot bypass the filter via the housing. Especially medical filters (without Ycapacitors) benefit from an improved asymmetrical attenuation in the higher frequency range due to the earth conductor choke.

Applications
Filters with earth line chokes are used in most applications with critical high-frequency earth line currents. High-frequency earth conductor currents are generated by any type of fast energy conversion such as switching power supplies, frequency converters or motor drives. Earth loops can occur in devices that are connected to other devices with shielded cables. The high-frequency interference current occurring on this earth loop is effectively attenuated with a ground choke. Typical applications are medical and laboratory equipment, audio and video as well as industrial systems.

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.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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Schurter FMBB EP Single Phase Block Filter

March 28, 2023
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Single Phase Block Filter with Excellent Performance
• Ultra compact double stage filter
• Excellent symmetrical and asymmetrical attenuation
• Very broad band attenuation
• Completely closed steel housing

Schurter complements the successful FMBB EP 1-phase filter family with variants for medical applications. The new filters meet their requirements up to a maximum of 100 µA leakage current.

The double-stage filters FMBB EP have a compact design with highest performance at the same time. Thanks to high-quality components, very high attenuation is guaranteed over a wide frequency range. This makes the filters ideally suited for demanding applications such as those frequently found in medical technology. The new variants are specially specified for medical applications.

New Filter Variants
The new filter variants meet the medical requirements 1 MOOP according to IEC 60601-1. The standard allows a maximum leakage current of 100 µA, for which the new variants with their maximum leakage currents of 73 µA are very well suited.

Part No.        Description
3-142-126      FMBB EP FILTER 1PH 2ST 1A 250VAC M80
3-142-127      FMBB EP FILTER 1PH 2ST 3A 250VAC M80
3-142-128      FMBB EP FILTER 1PH 2ST 6A 250VAC M80
3-142-129      FMBB EP FILTER 1PH 2ST 10A 250VAC M80
3-142-130      FMBB EP FILTER 1PH 2ST 12A 250VAC M80
3-142-131      FMBB EP FILTER 1PH 2ST 16A 250VAC M80
3-142-132      FMBB EP FILTER 1PH 2ST 20A 250VAC M80
3-142-133      FMBB EP FILTER 1PH 2ST 30A 250VAC M80
3-142-134      FMBB EP FILTER 1PH 2ST 36A 250VAC M80

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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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.

Enquiry Form: https://www.epreston.co.uk/contact/

Home Page: https://www.epreston.co.uk/epblog/

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