Crydom’s advanced DC Switching Technology is now conveniently packaged in a High Power “H” Bridge configuration with optional Soft Start, Soft Stop & Brake features for use in DC Load Reversing applications up to 60 amps at 48 VDC.

Crydom introduces the DP Series of High Power “H” Bridge configuration DC output Solid State Contactors, including control features for Soft Start, Soft Stop, and Brake functions. Rated for General Use at 20, 40 or 60 amps and Motor Controller rated for 15 FLA from 1 to 48 VDC in a 40 °C ambient temperature, the DP Series accepts logic supply and Input Controls of either 4.5 to 15 VDC or 18 to 32 VDC. Optional Soft Start/Soft Stop functions utilizing internal PWM are available with 0.2, 0.5 or 1.0 second ramps. An optional Brake function (not available with Soft Stop) is available with 0.2, 0.5, 0.8 seconds or continuous hold.

The DP Series Solid State DC Reversers are an all-solid-state design with 2.5 Kv Optical Isolation and incorporate low dissipation power FETs for fast and efficient Load control. Housed in an industry standard 75 x 105 mm Panel Mount package, Power and Load terminations are via screw terminal post, while Input Control is through an industry standard 4 conductor connector. DP Series Reversers are CE certified, RoHS compliant, UL/cUL recognized for both General Purpose and Motor Controller applications.

.

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

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

The FN5040/45 sinusoidal output filters reduce the extra losses in AC motors and help to prevent premature failures and expensive downtimes. They are precisely matched to the technical requirements of modern drive systems and are particularly impressive when used with long motor cables.

With the introduction of the FN5040/45, Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, is further expanding its range of products for improving reliability in motor drive technology. The new sinusoidal output filters smooth the modulated output voltage of modern drives and provide the motor with a clean sinusoidal voltage with low residual ripple. This largely prevents premature ageing or destruction of the AC motor due to high dv/dt, over-voltages, bearing currents or overheating due to extra losses. Expensive downtimes are avoided, and premature service or repair is eliminated.

The new filters are available in a compact open frame design (FN5040) or as a user-friendly packaged version (FN5045 - IP20). The cable-shield support brackets integrated into the housing facilitates work for the installer and favours savings of installation time and costs. Easily understood application instructions allow it to be safely used even beyond standard specifications, for motor frequencies up to 200 Hz or motor cable lengths up 2000 meters. Both models are designed for rated currents of 4.5 to 1200 A and for networks up to 3x 500 VAC (+/- 10%). The UL listing is currently in preparation.

Applications in building technology (pumps, fans, HVAC) benefit equally from the use of the new sinusoidal filter, as do industrial applications with very long motor cables or with several motors connected in parallel.

.

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

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

Crouzet Limited, has released its’ latest edition of the Micro-Control Overview. Covering 95 pages, the catalogue features Crouzet’s class leading range of control technology products including:

• ‘Millennium 3’ logic controller - including Smart and Essential versions and accompanying accessories

• Timers - including DIN rail mounted versions in 17.5mm and 22.5mm widths, Plug-in versions, Panel mounted versions with analogue, digital, electro-mechanical and manual reset options

• Control Relays - including Phase control (3 phase supply), motor temperature control and phase and sequence failure, Single phase DC Voltage control with selectable latching, current control (over and / or undercurrent), frequency control with window, level control and over / underspeed control, temperature control with window (lifts) to EN81

• Counters and ratemeters - including 24 x 48 single and multifunction electronic counters without preselection, 48 x 48 multifunction counters with preselection, electromechanical hour counters, impulse counters and dual function 48 x 48 counters.

• Temperature controllers - including 8 pin 48 x 48 analogue, 24 x 48 digital, 48 x 48 digital and accessories

• Safety relays - including EN81 relevelling control (lifts) and machine safety relays

Each section of the catalogue includes an easy to use selection guide to ensure simple selection of the right product for every application and all necessary product ordering information.

Click on the link below to view or download your copy of the New Micro Control Overview Catalogue.

http://www.crouzet.com/crouzet_docs/documents/EN_Overview-MCT-6712509.pdf

.

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

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

The Best Switches Come In Small Packages

Leading designer and manufacturer of switches, sensors and controls, ZF Electronics, has launched a new series of sub subminiature switches which suit applications as diverse as automotive door latches, industrial locking systems, outdoor equipment and hand-held control units.  Demands on electronic components for increased reliability and functionality increase year on year, together with the need to achieve higher specifications within ever-shrinking housing sizes.  The new DK sub subminiature series from ZF Electronics provides the smallest dimensions and highest performance for a snap switch in its class.

DK switches are less than 15mm in length and are sealed to IP6K5 (IP6K7 on request) for use in wet or dusty environments. With temperature ratings of up to 105degC, they are extremely reliable, with a long mechanical life of over 500,000 actuations. Additional actuators are available in a choice of either simulated roller or plain stainless steel and can be operated vertically or via customised actuators.  DK switches offer long over-travel features (1.3mm minimum) and have a variety of connection possibilities with solder, PCB terminals or pre-wired options all available.

Standard DK sub subminiature switches are designed for use on low-voltage DC circuits - nominal current rating is 5mA up to 2A. Non-standard versions are also available for circuits up to 60VDC, for example for use in battery-powered equipment.  Very low voltage applications are also possible, such as the switching of thermo-couples.  Contact configuration is single pole, dual throw (SPDT) with the benefit of AuAg crosspoint contacts for high contact stability. DK series switches can also be ganged for multiple use.

.

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

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

Hylec-APL, the UK’s leading volume supplier of electrical and electronic components, has launched a new product guide. The guide covers a wide selection of products including a number of innovative new products and solutions exclusively available in the UK from Hylec-APL.

The 2010/2011 guide is categorised into six different product groups: E-Mech Connectors, PCB Connectors, Weatherproof Connectors, Cable Glands and Grommets, DIN Rail Housings and Appliance Controls & Other Products. Each product group contains a list of the key products, general information, new product information and ‘insider knowledge’ from a member of Hylec’s dedicated sales team, also available from E. Preston Electrical.

Included in the product guide are a number of new products that Hylec-APL has included into its range as part of its dedication to offering clients the best components for their applications. New products include a range of low cost terminal blocks which replace the typical brass inserts with zinc plated steel, Zierick PCB connectors that offer quick and tidy connection with no wire preparation necessary and Ria Connect’s new IP67 X-Synergy RJ-45 / Fibre-Optic Ethernet connectors for industrial environments.

Terry Spriggs, Product Marketing Manager, comments: “Hylec-APL prides itself on keeping its stock up-to-date and relevant to current market demands. We felt that it was the right time to update our product guide to reflect the wide range of products that are now available to customers. The guide is a brief introduction to our product range and provides vital information such as IP ratings, accreditations and direct contact details to the dedicated sales team.”

http://www.hylec-apl.com/portals/3/doc/Hylec_Brochure_2010_V5.pdf

Chris D’Arcy, Managing Director, adds: “The Company is now into its 25th year of operation. Looking back on where we have come from it is incredible what we have achieved. The new product guide shows the versatility that we can provide to a number of industries. Our wealth of knowledge and experience means that we are also able to advise on the most suitable choice for virtually any application and, where necessary, can customise orders to suit.”

Hylec-APL is an ISO 9001:2008 accredited company that specialises in the bulk supply of components into a number of industries including OEMs domestic appliances, fire and security, lighting, HVAC, renewable energy, outdoor connection systems, industrial controls and marine. It maintains a large UK stock profile at its base in Northamptonshire, which is ideal for providing short lead times.

.

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

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

With the hot power entry module type 1681 SCHURTER expands the range in the upper performance segment of appliance inlet according to the standard IEC 60320. Thus, we cover the full range of the types specified by this standard regarding to rated currents, maximum pin temperatures and protection classes. The inlet also meets the requirements of IEC 60335-1 for household appliances in unattended operation with higher requirements of glow wire test according to IEC 60695-2-11 to 13.

This connector for very hot applications is used in devices that work with high currents and/or increased ambient temperature, for example IT infrastructure, telecommunication equipments or heating appliances.

In 4th quarter 2011 we will also offer the mating IEC connectors to 1681. These are the type 1658 in straight and the type 1659 in angled design.

Technical features:
- Ratings IEC: 16A / 250 VAC
- Ratings UL/CSA: 21A / 250 VAC
- Max. pin temperature: 155 °C
- Terminals: quick connect, solder or screw terminals
- Mounting styles: Snap-in or Screw-on types
- Approvals: IEC 60320, UL 498, CSA C22.2 No.42, IEC 60335-1

.

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

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

EMC/EMI filters on the DC side of PV inverters contribute significantly to the compliance with the EMC directive and to an increased system reliability. With the introduction of the FN 2200 range of filters, Schaffner presents the most compact solution in the market today. It is based upon the combination of innovative technology with years of application specific experience.

Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, introduces the new FN 2200 standard filters for the application on the DC side of PV inverters. These innovative filters are optimized for the requirements of photovoltaic systems and make available, for the first time, Schaffner’s extensive application experience with PV systems to the broad market.

Along with appropriately sized EMC/EMI filters on the mains side, FN 2200 DC filters help to meet the limits of EN 61000 and other binding EMC standards, which are often referred to for PV installations in Europe and other regions. Further, they help to increase the service life of the solar panel, improve its reliability, and reduce potential interference radiations off the panel, by keeping inverter-born high-frequency and leakage currents away.

The new FN 2200 filters require up to 30% less installation space compared to traditional solutions. They also convince with minimum power loss of <0.0008% related to the rating of the inverter and thus help to maximize PV system efficiency.

FN 2200 is available with ratings from 25 to 1500A at 55°C and for voltages up to 1200VDC. Filters without filter capacitors to ground (FN 2200B) are available upon request. All models are UL, CSA, and ENEC approved and RoHS compliant.
.

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

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

Two separate catalogues now available for: Industrial Applications; Commercial and Residential Applications

Finder has announced the availability of two new catalogues for 2011/12 detailing the company’s complete product range. The catalogues, one aimed at Industrial applications and the other targeting Commercial and Residential applications, contain essential reference information on timers, relays, interface modules, sockets and accessories for designers and buyers of electronic and electrical systems.

The 360-page Industrial Catalogue includes new series of interface relays, solid state relays, surge protection devices, panel thermostats and timers. This latest edition is divided into 3 product sections: plug-in / PCB relays; relay / interface modules; timers and monitoring relays. There are comprehensive specifications and ordering data for all products. For relays this includes coils, contacts, insulation and life figures, performance graphs, connection and dimensional diagrams. For timers and monitoring devices the catalogue features full illustrations and explanatory timing charts, switch settings, display and LED indication, along with application notes and guidance. To simplify ordering, all related socket and accessory information immediately follows the main product data.

In addition, an extensive general technical information section provides background on reference standards, terminology and definitions. This section has been expanded to include data on contact load classifications, UL approval file numbers and contact material characteristics.

The 78-page Commercial and Residential edition specifically focuses on energy saving lighting control, movement detection, time switch and temperature control products and features new items such as modular contactors, dimmers and room thermostats. Full technical and ordering data is provided together with performance and setting illustrations.

.

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

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

Passive harmonic filters are an excellent tool for improving the compatibility of motor drives with the public power grid. Schaffner extends the popular ECOsine™ product range with filters for 690V systems, supporting a straightforward upgrade from standard motor drives to «low harmonic drives».

With the extension of the ECOsine™ product family, Schaffner, the international leader in the fields of electromagnetic compatibility and power quality, is raising the bar for harmonic mitigation solutions anew. The new passive 690V harmonic filters are an ideal solution for 3-phase equipment with 6-pulse front-end rectifiers, like e.g. variable speed drives or battery chargers.

Frequency inverters for energy efficiency and speed control of electric motors can, in combination with ECOsine™ filters, be utilized as low harmonic drives, causing minimum system perturbation. As a result of the significant reduction in total harmonic current distortion (THID) to typically 5%, ECOsine™ filters can uniquely guarantee compliance with the toughest requirements of IEEE-519 and other stringent international power quality standards. Drive and filter combined allow for unconditional use without the need for a costly power quality analysis in each case. The electrical infrastructure is reliably unburdened, transformers are utilized much more effectively, and the failure rate of neighboring electrical consumers is reduced.

The new ECOsine™ filters FN341xHV are rated for 690VAC/50Hz grids like those often used in chemical plants, in oil and gas exploration, or in heavy industry. The filters are available as a standard for diode rectifiers (FN3410HV) and upon request for thyristor rectifiers (FN3411HV). They come in common steps of power rating from 7.5 to 250kW. The compact filters are designed with IP20 rated enclosures, suitable for cabinet integration or for wall mounting in electrical utility rooms.

.

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

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

The diversified appliance couplers from SCHURTER are successfully in use throughout the world. This product portfolio has been widened through the series 5001 of panel mounting appliance outlet, specially developed for printed circuit board mounting. Mounting onto PCB’s provides the user with high cost effectiveness.

The series 5001 is available in protection classes I (3 pole) and II (2 pole). The earthing contact (arrangement in protection class I) is provided with an additional terminal for connecting the appliances chassis directly at the power input.

The 5001 housing is made from polyamide PA6 / UL 94V-0. Current carrying parts are made from a copper alloy. The pins are nickel plated and the connections tinned. In the standard arrangement of the 5001, 4 fixing holes are available for mounting. Fixture onto a panel or PCB takes place with screws or rivets.

A special arrangement with snap rivets is also available for PCB mounting.

The 5001 appliance complies with standards IEC60320 / EN 60320 / VDE 0625.

Approvals:
- ENEC 05: 10A / 250 Vac
- cCSAus: 15A / 250 Vac

The 5001 appliance outlet is used for mains extensions and is to be found in applications such as power distributors, household devices, entertainment electronics, office communications, medical technology, industrial electronics and automation.

Technical Features:
- Panel mounting appliance outlets IEC 60320 type F and H
- Rated current range: ENEC 10 A, cCSAus 15 A at 250 VAC

.

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