E. Preston Electrical is a Specialist Distributor of Electrical Components. With over 30 years of experience in the distribution industry our expertise allows us to meet the high demands of changing business needs. We offer the complete range of Solar PV Components from some of the world’s leading manufacturers, including Solar Panels, Inverters and Isolators, etc.

E Preston Electrical is an independent distribution company. Our Solar products can be bought separately or as part of a complete Solar kit. Products have been carefully chosen because of their quality, availability and price.

Kits are available for the following systems: 1.5kW, 2kW, 2.8kW and 4kW.  Each kit includes solar panels, inverter, generation meter, AC & DC isolators, cables, connectors and roof mounting fixings and rail.

*  MCS Approved Solar Panels
*  25 Year Performance Guarantee for Solar Panels
*  G83 Approved Inverters
*  5 Year (Extendable) Product Warranty for Inverters

Harness Solar Energy for Your Home

Solar PV utilises energy from the sun to generate zero carbon, free electricity. It relies on daylight to generate power through the use of photovoltaic cells within roof-mounted modules. Electricity produced from Solar PV has a very high efficiency of around 95%, compared to electricity generated from traditional fossil fuels which have overall efficiency of less than 40%.

The electricity produced by a Solar PV system can drive any appliance that is powered by electricity. An inverter converts the DC current into usable AC current that can be used as power. Any surplus electricity produced can be sold back to the National Grid.

Electricity requirements vary depending on the size of your house and how energy-efficient the building and appliances are. With a Solar PV system you will be able to reduce electricity bills because the system will supply some or all of your power rather than mains electricity.

Key Features

*  Complete Solar PV kits available, starting from 1.5kW outputs
*  MCS Approved products
*  Feed-in Tariff’s guaranteed by the government for 25 years
*  Energy saving, environmentally friendly free solar electricity
*  High efficiency monocrystalline and polycrystalline modules in 180W and 220W outputs
*  Minimal system maintenance required
*  Module mounting systems include on-roof, in-roof and flat-roof kits, both portrait and landscape
*  Reliable technology with a performance guarantee of up to 25 years

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Schurter is expanding its range of surface-mount fuses with the UMF 250. With its quick-acting characteristic according to IEC 60127- 4 the UMF 250 represents the logical addition to the successful UMT 250 series. The UMF 250 protects your electronic systems from overcurrents and short-circuits.

Schurter offers the UMF 250 in five rated currents from 500 mA to 10 A. The fuse is characterized by its high breaking capacity of up to 200 A at rated voltage. With the UMF 250 both primary and secondary protection on SMD PCBs is possible. Applications include protection of power supplies, medical equipment, and devices for home and industrial use.

As a RoHS compliant fuse, the UMF 250 can be used with lead-free soldering processes. The compatability of the solder pads with major competitors' products allows SCHURTER to offer the UMF 250 as replacement product. Fuses according to IEC 60127-4 are considered as Universal Modular Fuses (UMF). Furthermore, the product includes the VDE and cURus approval.

Technical features
- Current range: 500 mA to 10 A
- Rated voltage: 250 VAC and 125 VDC, according to IEC
- Breaking capacity: 100 - 200 A @ 250 VAC, 100 - 200 A @ 125 VDC
- Characteristic: Quick-Acting, according to IEC 60127-4 (UMF: Universal Modular Fuse)
- Component size: 10.1 x 3 x 3 mm

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Hylec-APL has expanded on its already wide range of cable glands with the introduction of the Kwik Fix range. Designed for use in applications where access to the interior of a bulkhead or enclosure is restricted, the Kwik Fix can be used to form a quick, IP68 connection. Especially suitable for use with Switch Cabinets and cooling and heating systems, the Kwik Fix can reduce installation time which will increase profitability.

Traditional dome topped cable glands are ideal for creating a simple and secure entry point for bulkheads and enclosures. Secured from the inside using a locking nut they form an IP68 seal which a cable can be simply passed through. However, when access to the inside is restricted installation time can be greatly increased and it may even be necessary to adopt specialist tooling or, if the panel is large, 2 people would be required to assemble the glands into position.

The Kwik Fix cable gland from Hylec-APL is installed by placing the mounting foot of the gland through the entry hole. The mounting foot is designed with a lip that can pulled tight against the inner wall; an external hexagonal locking nut is then turned anti-clockwise to hold the gland in place and form an IP68 seal. Once locked in place you can install the corresponding cable in the traditional manner; tightening the top dome nut in a clockwise direction.

This means that the gland can be easily mounted and dismounted from one side making installation and maintenance far simpler. The gland can be fitted onto entries where the wall thickness is between 1mm and 4mm and the waterproof solutions can operate safely in temperatures between -20 degrees C and 100 degrees C.

Terry Spriggs, Product Marketing Manager, for Hylec-APL: “While traditional cable glands are ideal solutions for many electrical installations, we realise that every application has its own unique consideration which is why we stock many entry solution components; from grommets to ATEX rated glands. The Kwik Fix adds a further dimension to our cable gland range, offering easy installation for applications that would be traditionally awkward.”
Hylec-APL has a dedicated sales team that are experts in the field of electrical components. Understanding that OEM’s and installers don’t have the time to research every component for the perfect solution they hold a large stock profile in the UK and will happily give guidance and help to source the ideal solution for most applications.

About HYLEC-APL
Hylec-APL provides a wide range of product options and solutions including many thousands of different line items. From PCB Connectors and Terminal Blocks, to Cable Glands, Cable Accessories, LEDs, Switches, Buzzers, Relays, IP Rated Connectors and DIN Rail Mounting Enclosures, all items are quality assured and supported by dedicated technical expertise.

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Honeywell Z Series standard subminiatures are designed for repeatability and enhanced product life. The MICRO SWITCH™ Z Series combines small size and light weight with ample electrical capacity, low cost, and enhanced life. The MICRO SWITCH™ Z Series consists of six product families with unique features that can drop right into an application.

These reliable and rugged switches offer a variety of actuators, terminations, circuitry configurations, electrical ratings, contact materials, operating characteristics, and sealing allows them to be utilized in numerous potential applications. Carefully manufactured and thoroughly inspected, the MICRO SWITCH™ Z Series standard subminiatures are a great value for applications requiring sensing presence or absence of an object.

FEATURES
* Small size and light weight switches lend themselves to numerous potential applications
* Choice of low energy or power-duty electrical ratings allow the switch to be specified in more types of applications
* Broad range of amp ratings (from 0.1 A to 10.1 A)
* Watertight IP67 sealing available on some listings allows the switch to be used where sealing and presence/absence detection is required
* UL/CSA, cUL, ENEC, and CE approvals

POTENTIAL APPLICATIONS

Industrial: Appliances, communication equipment, computers, electromechanical timers, mechanical cam assemblies (timers), office equipment, electric tools, HVAC wall controls, instrumentation, valves, vending machines

Transportation: Automotive, truck, and boat wire harnesses; sub-assemblies for convertible roofs; lock modules for tail-gate/trunk; tank and hood latch detection

Medical: Medical and hospital beds, foot pedal controls, and chair lifts

Applications where a pre-wired sealed on/off switch is required

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Hylec-APL Pluggable Spring Terminal Blocks

* Industry standard pitches 3.5mm / 3.81mm / 5mm / 5.08mm.

* Mate and retro-fit with existing industry standard PCB headers.

* Up-to 60% faster installation time than screw.

* Only spring connector in the market supplied with clamp open.

* Tool-less operation for secure connections of solid and stranded wires.

* Automatic spring clamp torque for optimum vibration resistant gas-tight connection every time.

* Body material is flame resistant Polyamide, self extinguishing in accordance with UL94 V0.

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Finder has introduced a new family of ultra-slim relay interface modules that provides a low-cost, space-saving solution for a host of industrial applications. The 39 Series MasterINTERFACE range incorporates an innovative, replaceable fuse for output circuit protection, plus busbars and terminals that substantially simplify input and output wiring.

Housed in a compact 6.2mm wide package, the 39 Series offers integral coil protection circuitry across the gamut, as well as a secure retention and ejection clip, and terminal screws suitable for blade and crosshead screwdrivers. Five dedicated module types are offered, designed to meet the specific requirements for basic, enhanced, input, output and timer interface functions.

Available with electromechanical or solid state relays for general interfacing applications, the MasterBASIC features common link supply terminal positions, allowing the use of a 16-way jumper link. The enhanced MasterPLUS module adds the option of a quick connection replaceable output fuse and special leakage current suppression versions to mitigate any detrimental effects caused by residual current in the input circuit. Both the MasterINPUT and MasterOUTPUT incorporate additional busbar jumper links and terminals necessary for the full connection of 2- or 3-wire input devices and output devices respectively, thus reducing component cost, time and panel space. The MasterTIMER is a multi-function and multi-range device with DIP-switch selection of 4 time scales and 8 functions, with timer delay adjustment achieved via an easy-to-access rotary knob on the top surface of the module.

A range of accessories is available to support the 39 Series relay interface modules, including red, blue and black 16-way jumper links, and dual purpose separators (1.8mm or 6.2mm) for the visual or protective separation of groups of interfaces operating from different supply voltages, or for the protection of cut ends of jumper links. The MasterADAPTER permits the easy connection of A1/A2 terminals of up to 8 MasterINTERFACE modules to PLC outputs via a 14-way ribbon cable, plus simple 2-wire power supply connection, providing significant wiring savings.

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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.

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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.

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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

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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.

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