Category Archives: Product Announcements

Schaffner Document: EMC in Medical Applications

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When Every Heartbeat Counts

Holger Urban, Product Marketing Manager, Schaffner International AG

It is apparent that the medical electronics market continues to grow and that this trend is unlikely to slow down any time soon. Every person who has access to advanced medical care will try to get the best support available and the best treatment possible to increase their quality of life. Due to changes in demographic and social standards, we expect further increases in demand on medical infrastructure within the next few years.

The ability to design customer centric solutions for home care or even robot-aided surgery drives engineering to the edge and to technologies inconceivable just decades ago. The central challenge to designers is to improve health without applying any additional risk to the patient.

EMC is now considered to be one of the most important design aspects that any new electrical or electronic system design needs to fulfill. It is therefore essential that designers should consider integrating EMC filters as soon as possible in the development phase. Selecting the right EMC filter could save time and prevent additional costs in later stages of the design approval process.

A good example of a medical application with limited space is automated syringe pump. Such pumps are directly attached to the patient through an insulating plastic hose. The medication delivery must be programmable and repeatable; this means that the control logic has to be reliable. That’s why EMC matters in order to ensure the pumps continue to operate as intended without interfering with (or being affected by) other pumps and equipment operating nearby (within a hospital for example). Therefore relevant EMC and safety standards need to be fulfilled. The medical Standard IEC60601-1 focusses on major safety points; some of these are applicable to the mains power entry where Schaffner has a range of solutions.

Specifying Components for Fulfillment of IEC60601-1

Here Schaffner offers a level of product certification which helps designers to meet the safety requirements of European and U.S. legislations. The approval certificate for Schaffner Filters according to IEC60939-3 includes a section where the filters compatibility to fulfill the requirements of IEC60601-1 is stated.

“The FN92XX filters (B-types in particular) comply with the requirements of the EN/IEC 60601-1 standard regarding creepage and clearance distances, leakage current and voltage withstand.”

Medical EMC filters also have to be designed to allow the customer to fulfill MOPP and MOOP (Means of patient and means of operator protection) for any medical application. Depending on the level of insulation needed, design of a custom filter solution can be considered.

The leakage current definition for electrical medical devices is an important topic which has the same purpose of reducing the risk to the patient. There are number of different connections to consider. The most severe level within the standard is CF (Class C floating type connection suitable for cardiac application) applied part, which is limited to 10µA in normal condition and 50µA in a single fault condition. Considering parasitic effects in a system the filter should not introduce any additional leakage current. However in less critical applications, EMC filters with very low leakage current can be considered as well. Such filters have higher performance compared to filters without any leakage currents. Leakage currents are directly related to the value of capacitors used in filters connected between Lines to Protective Earth (PE) (Y- Capacitors or Cy).

Performance Levels with Reduced Leakage Current

Schaffner offers standard solutions for different levels of leakage current requirements. In general the solution for medical applications is the so called B-type filters. These filters do not have any capacitance to PE and therefore do not add any leakage current to the system. It must be noted that the overall leakage current for the whole system needs to be determined, even with a filter which does not introduce any leakage current.

With removal of (Cy) capacitance to PE, the overall performance of the filter is reduced compared to the standard filter with Cy. Schaffner also offers so called EB-type filter to compensate some of lost performance as a result of no Cy.

In addition to the performance enhancement, EB-type filters increase immunity to electrical fast transients compared to the B-type. This will help customers comply with the IEC/EN61000-4-4 immunity tests.

Therefore Schaffner EB-Type Filters can be the best performing filters available in its class for a reliable medical Electrical design.

To conclude, EMC filters for medical applications should:

– fulfill the most stringent leakage current regulations
– offer the best size vs performance
– be designed for typical usage in medical environment

Overall its clear devices should help to increase the health of patient and should not pose any potential risk when applied to a human body. With a Schaffner filter, customers can easily solve their EMC issues and get products certifications without applying any additional risk to the patient.

Schaffner not only offers a number of “off the shelf” EMC filtering solutions for medical applications but also works closely with customers who require customized solution.

www.schaffner.com

Holger Urban Product Marketing Manager
+41 32 681 67 10 (direct)
holger.urban@schaffner.com

Frank Almer Manager Marketing Communication
+41 32 681 68 80 (direct)
frank.almer@schaffner.com

Schaffner EMV AG
Nordstrasse 11
4542 Luterbach
Switzerland
T +41 32 681 66 26
F +41 32 681 66 41
www.schaffner.com

 

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Schurter IEC Power Entry Module Series 6200, 6202 and 6205 with V-Lock Cord Retention and Enhanced Glow Wire Resistance as Standard Features

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The power entry module series 6200, 6202 and 6205 are now equipped as standard with the V-Lock cord retention feature and are made of new material, whereby the components meet the increased glow wire tests according to IEC 60127-6 Edition 2 and IEC 60335-1 for appliances in unattended use.

 

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Honeywell Announces Product Upgrade to Micro Switch SZL-VL Series Limit Switch

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Honeywell is pleased to announce an upgrade to the Micro Switch SZL-VL Series Limit Switch effective May 2017.

The new product features include the addition of positive opening contacts (side rotary version only), enhanced sealing level to IP67; NEMA 1, 12, 13, extended the temperature range, and added CCC certification.

The upgraded design includes modified seals, housing and a new design cable gland to improve seal performance. The housing design and mounting hole pattern remain the same. Any dimensional changes do not exceed more than 1mm.

These product enhancements will allow the potential for use in wide variety of applications as well as bring more value to our customers.

The upgrades to the SZL-VL Series require that we introduce new part numbers and obsolete the existing SZL-VL part numbers.

Value to Customers
Honeywell Micro Switch SZL-VL-S Series Miniature Limit Switches have user-friendly interfaces and may be used in a broad range of applications to help meet the challenges of many industrial environments. A variety of actuators fit on the same platform reducing the need to use various kinds of mounting hardware.

With robust environmental ratings, the SZL-VL-S is protected for all kinds of industrial applications. IP67 indicates that the SZL-VL-S is protected against the effect of immersion in water between 15 cm and 1 m. The competition standard is IP65 which can only withstand low pressure spray and jets of water. The electrical rating of 10 A permits the SZL-VL-S switch to be used with heavier electrical loads than competitors.

Key Features
* Approvals: CCC, CE, cULus
* Sealed to IP67, NEMA 1, 12, 13
* Snap-action contacts
* Die-cast metal housing with glass-filled, flame-retardant thermoplastic cover
* Stainless steel levers with either steel and nylon rollers
* Variety of actuators
* Positive-opening contacts (plunger version only)
* RoHS compliant
* Utilization category:
>AC-15 A300 (380 Vac/0.5 A)
>DC-13 Q300 (220 Vdc/0.05 A)
* Mechanical life rating: 10 million cycles
* Electrical life rating: 0.5 million cycles

Potential Applications
* Commercial appliances
* Exhaust and fume hood door monitoring
* Lift mechanisms inside high-density parking garages
* Logistic facilities
* Machine electrical interlock
* Machine position sensing
* Ramp up and down position monitoring
* Scissor and man lifts
* Vending machines

 

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Hylec-APL: 80A Rotary Isolator Switches / TeeTube / Debox

Completely Submersible TeeTube TH381 Connectors; 80A Rotary Isolator Switch; Debox 100% Tool-Free Junction Boxes

Hylec is well-known for its extensive ranges of junction boxes, terminal blocks, door enclosures, weatherproof connectors and HVAC components, and among these is the new 80A Rotary Isolator switch, the latest addition to the ROTARY ISOLATOR range of AC and DC switches for industrial and commercial buildings. IP67-rated and able to withstand water up to a depth of 1 metre, ROTARY ISOLATOR switches enable fast shut down in emergencies and ensure the circuit is completely de-energised for routine service and maintenance. With plenty of internal space for ease of installation, this range offers best-value/performance on the market.

Another new product that has taken the trade by storm since its introduction in April is the TH381 TeePlug, a completely submersible waterproof micro-connector for underwater and harsh environment installations. IP68/IP69K-rated and only 14mm in diameter, the TeePlug TH381 Series provides complete protection against high pressure water jets too. Its push-pull design installs up to 80% faster than competitive waterproof connectors. The TH381 Series suits outdoor lighting applications, such as architectural lighting, underwater lighting, road sign and billboard illumination and connection of exterior and interior Class 2 electrical devices.

The Debox range of in-line junction boxes, including the 100% tool less Debox SL can be assembled in a few seconds. It is supplied complete with a 16A, UL and VDE-approved, 4-pole screw-less push wire terminal block, DeboxSL joins flat or round profile cable and includes everything to save electricians on-site installation time and reduce costs. No tools are required: after inserting the cables and closing the included cable clamps, the lid is simply snapped shut and held with the supplied locking clip. This innovative cable junction box from Hylec-APL is IP20 protected, flame retardant to UL94V-0, and suits internal applications, including ring main lighting, LED lighting and power.

 

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Hylec-APL Launches New DEDSS Series Lockable IP66 IK10 Stainless Steel Enclosures for Challenging Environments

 

Time-saving “everything supplied” kit; suits corrosive and hygienic environments; six sizes available

Hylec-APL, the specialist supplier and manufacturer of electrical and electronic components and enclosures, today announces its new DEDSS Stainless Steel Series of lockable, solid door enclosures specially designed to provide high-quality, secure, cost-effective protection for specialist and demanding electronic and electrical installations. The DEDSS Enclosure Series is IP66 rated and protects contents against water and dust, as well as being able to withstand impact to IK10 specifications and extremes of temperature ranging between – 20degC and +55degC. Suitable applications for DEDSS enclosures include corrosive environments, such as the chemical and petrochemical industries, and environments where strict hygiene is required, for example, the agro food sector.

The rugged DEDSS enclosures range is manufactured from grade 304 stainless steel and supplied as a complete kit. This includes a metal lock and key, a 2mm galvanised steel back plate, and external mounting feet and spacers. In addition, DEDSS enclosures come complete with an earth strap pre-wired and fitted between the door and the housing to save valuable installation time.

This comprehensive range encompasses six different sizes, ranging from 300mm high x 200mm wide x 150mm deep to 500mm high x 500mm wide x 200mm deep, so offering a wide choice capable of accommodating most installations. Many accessories that fit the DEDSS range are available from Hylec: cable glands, Kwik-Fix cable glands, venting elements, contactors/thermal overloads, filter fans and other fans.

Steve Robbins, Sales Director comments: “The DEDSS range provides the perfect solution for protecting delicate components in environments that demand very high standards of security and cleanliness, for example where hygiene must be maintained, such as hospitals, dental and veterinary practices, in addition to a whole host of other industries, such as food manufacturing.”

 

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Schurter Fuse SHT 6.3×32 and SHT 6.3×32 Pigtail

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Schurter offers a robust, compact and cost-effective cartridge and pigtail fuse SHT 6.3×32 for high voltages and currents. The high breaking capacity up to 3500 A at a nominal voltage of 250 VAC opens the fields for applications for commercial electric cooking appliances in accordance with UL 197.

Schurter offers the SHT 6.3×32 in ten rated currents between 1 and 8 A. The high breaking capacity makes the fuse outstanding. In addition to a wide range of industrial applications the SHT 6.3×32 is particularly suitable for a large number of applications in electrical cooking appliances according to UL 197 standard for protection of 1- to 3-phase systems.

Schurter offers the SHT 6.3×32 as a fuse link and a pigtail version. Fuse links are suitable for mounting in clips and fuse holders, which makes it possible to quickly replace the fuse without soldering. SCHURTER offers the suitable clips (CQP, OG-Clip, OGD) and fuse holders (FEU FUS, FEC, FUL, FUA and FUP) for this purpose.

The most important competitor products are bigger in size (e.g. 10.3×38) and therefore more cost-intensive. That allows Schurter to offer the SHT 6.3×32 and SHT 6.3×32 Pigtail as a replacement product which will reduce size, weight and cost.

Technical Specifications
– High rated voltage of up to 500 VAC
– High breaking capacity of 3500 A @ 250 VAC / 1500 A @ 500 VAC
– Rated current range from 1 to 8 A
– Time lag characteristic T
– Ceramic housing

Application Areas
– Commercial electric cooking appliances according to UL 197
– Photovoltaics
– Frequency converters
– Power electronics
– 3-phase applications

 

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Schurter CDS1 – Configurable Display Switch

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CDS1

Schurter is launching a new generation of intelligent input systems with capacitive touch technology. The intuitive operation with the touch of a finger stroke, wipe or rotation on the touchscreen conveniently resembles that of a smartphone. It delightfully responds to the visual taste and selection wishes of the customer.

• Fully Configurable Input and Display Function
• State-Of-The-Art Technology
• Full Faced Touch Screen
• Round OLED Display
• Plug-and-Play

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Fully Configurable
The user decides what is displayed. Then, with a wipe of the bright round OLED display, the selection can be activated. Tap the home LED to return to the home screen. Hard image change, gentle fade-in and fade-out – it has complete creative flexibility with all functions being fully configurable. The same flexibility is enjoyed with regard to the layout of the glass screen. Any symbols on the softkeys are possible. Accentuate the overall visual appearance of the switch by means of an added aluminum decorative ring.

Mass Storage
The ground-breaking capacitive CDS1 has an internal mass storage, on which all images, graphics and animations can be loaded via Micro USB 2.0 interface.

Machine Control
Standard interfaces I2C, SPI or RS232 are available for communication between the CDS1 and the customer’s machine control.

Assembly
The CDS1 is mounted on the front panel from the rear. A special mounting ring with screws is available for this purpose. If the supplied O-ring is used, an IP protection of IP67 is achieved, without a seal ring its IP40.

Plug-and-Play
Plug-and-Play: this is the motto for the CDS1. Unpack, connect and immediately using the machine simulator (Windows) provided. It can’t be easier. With the CDS1, SCHURTER introduces its first model of a pioneering new generation of human-machine interfaces.

Technical Data
– Power Supply Voltage: 3.3 VDC
– Display: 16 bit color OLED, 128 x 128 pixel
– Touch Screen: full size PCAP
– Touch Functions: rotation, swipe, tap
– Integrated Memory: 4 MB, Micro USB-B 2.0 port
– Supported Interfaces: I2C, SPI, RS232
– Operating Temperature: -20 °C to +60 °C
– Operating System for Simulator: Windows 7 and higher
– Operating System for CDS1: no operating system required

Application
– Industrial Machinery
– Vending and Ticketing Machines
– POS Terminals
– Professional Electronic Equipment
– Food Service and Processing Equipment
– Laboratory Equipment
– Premium White Goods

 

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Hylec’s New 80A Isolator Switches Ensures Fast Electrical Isolation for Multiple Applications

 

80A Isolator

Hylec-APL, the specialist supplier of electrical components and enclosures, announces new model in its range of Isolator switches, which provide fast electrical isolation for multiple applications, including industrial machinery, commercial buildings, power supplies, security equipment and HVAC. Isolator control switches are IP67 rated and withstand water up to a depth of one metre, as well as completely preventing the ingress of dust and dirt, vital in many factory and commercial applications.

Safety is of paramount importance in such environments, and Isolator control switches ensure an electrical circuit is completely de-energised for routine service and maintenance and can be shut down quickly in the unlikely event of an emergency. The Isolator switch separates the circuit from the main power source and discharges any current trapped in the circuit, rendering it safe to work on and of course ensuring fast shut down and the absence of any electrical current when an emergency stop is required. When used as an emergency stop, it can be locked in the off position using a padlock (not supplied). For safety, the switch is interlocked with the lid to prevent opening while in the “on” position. The interior mechanism is a 4-pole rotary isolator switch disconnector used to switch power to commercial or light industrial applications.

Isolator control switches are manufactured from completely flame retardant polycarbonate, rated to UL94V-0, providing an additional margin of safety over competitive products with a lower flame-resistance rating. As well as being flame retardant, housings are robust and highly visible, with yellow covers and red control switches. The new 80A AC Isolator model features silver-plated alloy contacts for high reliability. Earth terminals are included, as well as captive retained cover screws. The 80A AC Isolator has a compact footprint, but its internal dimensions are a generous size, measuring 9cm wide by 17.3cm long, so there is space to manipulate cables easily during installation.

 

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Schurter Series 4797-5: 16 A IEC Appliance outlet of the type J for intelligent PDUs and UPSs

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Schurter improves upon a classic product: the new 4797-5 series IEC outlets are available with integrated Light Pipes. An intelligent, space and cost-saving solution for PDUs used in data centers and other multi-distributed power applications.

– Integrated Light Pipes for Status Indication
– Cord retention

Series 4797-5

The human need for information continues to expand at record pace, while continual advancements in information and communications technology (ICT), strive to keep pace with this demand. New data centers continually appear in the most unconventional of places to support this growing demand. These data centers are under constant pressure to improve upon efficiency and reliability under growing regulatory requirements to reduce energy use and cost. Meanwhile, the demand for reliable transmission with increased speed must keep pace. At the base of this modern day economic demand and supply phenomena is an intelligent, reliable power supply and – at the base of that – a simple connector. Schurter is pleased to introduce its IEC outlets with integrated Light Pipes, which bring a simple yet improved solution to intelligent power distribution

Freely Configurable Status Indication
Today, PDUs often use LEDs mounted in between outlets to display a current status. The high packing density of servers in modern data centers demands the same of power distribution units. With Schurter’s appliance outlet, the integrated Light Pipes provide space and assembly cost savings over conventional strip designs. Service technicians are able to clearly see which systems are working properly, or respond to required maintenance adjustments. The triggering of the LEDs is freely configurable, wherein each state can be clearly and independently represented. An outlet could, for example, signal an outage with a red LED, or a critical power consumption pattern with a yellow LED.

Optionally the Schurter 4797-5 is available with up to four Light Pipes.

Cord Retention
In order to prevent against unintentional removal of a power cord, the new sockets offer a pull-out safety device. Depending on the arrangement of the sockets in the bar – horizontally or vertically – the Schurter V-Lock or other cord retention systems with side latches can be used. Both systems are usable with the 4797-5 outlets.

The snap-in bracket is designed for front panel mount and can fit a panel thickness 1.5 mm. Optionally variants from 1.0 to 3.0 mm are also available.

Technical Data / Approvals
– Ratings IEC/CCC 10 A / 250 VAC; 50 Hz
– Ratings UL/CSA 15 A / 250 VAC; 60 Hz
– Dielectric Strength > 1.5 kVAC between L-N    (1 min/50 Hz)
…………………………….. > 3 kVAC between L/N-PE  (1 min/50 Hz)
– Allowable Operating Temperature: -25 °C to 70 °C (Pin Temperature)
– IP Protection from front: IP 20 acc. IEC 60529
– Suitable for appliances with the protection class I acc. IEC 61140
– Snap in mount for panel thickness 1.0, 1.2, 1.5, 1.7, 2.0, 2.5 or 3.0 mm
– PCB Terminal 2.8 x 0.8 mm

Applications
With its unprecedented functionality and compact design, the new appliance outlet 4797-5 is optimal for intelligent appliances with multiple outlets, such as intelligent PDUs and UPSs used in data centers.

 

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Schurter Is Ready! . . . for the New Requirements of IEC/EN 60127-6 Edition 2 Increased Glow Wire Resistance

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The new fuse holder standard IEC/EN 60127-6 Edition 2, requiring increased glow wire resistance, will come into effect the beginning of October 2017. Schurter is ready!

Glow Wire

With the updated fuse holder standard IEC / EN 60127-6 Edition 2, more attention is given to the area of fire protection. New requirements focus on the materials being used, which must be glow wire tested according to IEC / EN 60695-2-12 and -13 (GWIT=775°C and GWFI=850°C).

These new requirements are contained in the standard for household appliances IEC/EN 60335-1, which has been a long time established standard, particularly due to the prevalence of such unattended appliances (e.g., coffee machines).

All manufacturers of fuse holders must therefore check the glow wire resistance of the materials being used and, if necessary, replace the material. It is also necessary to update the approvals and to carry out a re-examination by the certification body. In case of a material change, the tests according to UL 4248.1 must also be repeated.

All fuse holders certified Until October 08 2017, SCHURTER will have adapted the complete range of its IEC-certified fuse holders to the new standard, including power entry modules with fuse holders. This will poise SCHURTER as the first manufacturer of fuse holders ready to meet the stringent standard.

All Schurter IEC-certified fuse holders marketed as of October 08 2017 will comply with IEC/EN 60127-6 Edition 2, as well as UL 4248.1, and can therefore be safely installed in all household appliances.

Customer-friendly Schurter has placed great attention on the fact that the same part numbers will be used. This makes it unnecessary for the user to make changes to a parts lists, or be deal with new approvals.

General Rules from VDE
–  The manufacturer will lose VDE approval after October 08 2017 for any parts that do not conform with the new requirements for IEC / EN 60127-6 Edition 2 and therefore must no longer sell those products.

–  All parts the manufacturer already sold to market (i.e. to end-customers, distributors or resellers) before October 08 2017 maintain valid VDE approval.

–  All mixed inventory at end-customers, distributors or resellers can continue to be used or shipped or resold without any limitation.

 

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