Finder has introduced surge protection devices (SPD) designed specifically for photovoltaic (PV) panel installations.  Additions to its popular 7P Series of SPDs, three new Type 2 surge arresters will protect PV systems from the effects of lightning strike and electrical switching transients.  The products are already supporting the company’s own PV panels at its primary manufacturing plant.

Featuring encapsulated spark gap and/or replaceable varistor modules, the three devices protect the more vulnerable DC side of commonly used earth free and mid point earthed PV systems.  The range includes: the 7P.26.9.420, providing 2 varistors and 1 spark gap for 420V DC systems; the 7P.23.9.700, providing 3 varistors for 700V DC systems and the 7P.23.9.000, providing 3 varistors for 1000V DC systems.

Each device integrates both a visual indicator and a signalling contact to warn when a varistor module needs replacing.  Connection to the signalling contact is via a convenient plug-in terminal block.  The SPDs comply with EN 61643-11 standard and can be 35mm rail (EN 60715) mounted.

Finder’s introduction of a range of SPDs tailored to the needs of PV installations comes at a time when UK government Feed-In Tariffs (FITs) appear to have stimulated a step increase in interest in PV system in the country.  The UK is now the fastest growing market for PV solar energy installations, estimated to produce 96MW of electricity in 2010 compared with 6MW in 2009.

At the same time, a prospective revision of the UK wiring regulations, placing far more emphasis on the provision of protection from electrical surges, has meant there is a resurgence of interest in associated products, in particular varistor and spark gap type SPDs.

PV panels at Finder’s prime manufacturing site in Almese near Turin in North West Italy have been producing an output power of 55kW since early 2009, equating to 61,000 kWh/year.  So pleased with the performance, the company has this month commissioned a further 60kW of PV panels, which of course will be protected by the new 7P Series surge arresters.

Constructed using multicrystalline silicon PV modules, Finder’s initial PV system is calculated to have reduced CO2 emissions by about 37 tons/year, achieving annual cost savings of around 11 TOE (tonnes of oil equivalent).

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It’s Time to Cut the Cord.   Retire the Wire.   To Give the Best Ideas Free Rein.   Introducing the Limitless™ Series That Allows Users to Go Farther, Work Smarter, and Explore More Possibilities Than Ever Before.

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Honeywell introduces a new series of wireless limit switches that combine great flexibility with proven harsh-duty packaging to increase efficiencies and improve safety for machines, equipment, OEMs, and operators. The new Limitless™ Series of switches and monitors offers a new way of working that delivers more flexibility, more up time, more reliability, and more freedom.   Honeywell Sensing and Control develops this technology to be a truly cutting-edge, cost-saving solution.

The new Limitless™ product line combines the best of MICRO SWITCH™ global switches with wireless technology. Limitless™ WGLA Series limit switches feature the latest commercial off-the-shelf wireless technology, especially beneficial for remote monitoring applications where wiring, or wiring maintenance, is not physically possible or economically feasible. Limitless™ wireless switches and monitors use 802.15.4 as it is license free, globally acceptable, and requires low power consumption. They also employ WLAN RF 24 GHz standard radio bands, conform to international IEEE 802.15.4 standards, and feature a 16-bit address and 128-bit security key.
 
Up to 16 Limitless™ switches may be networked together and paired with one Limitless™ WPMM monitor. When used together, Limitless™ components have up to a 304 m [1000 ft] line-of-sight communication range. These switches may be used in a variety of remote monitoring applications, including valves, construction/agricultural machines, cranes, grain diverters/flaps, lifts, material handling, door positioning, conveyors, presses, and specialty machines.

With Limitless™ products, Honeywell is harnessing the power of possibility… bringing the promise of wireless technology to a new world of applications. The Limitless™ WGLA and WPMM Series are just the beginning as Honeywell plans to introduce more in the series of wireless switches and receivers throughout 2010.

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Schurter extends its ECO filtered power entry module for DC applications, series 5003, with a newly added PCB mount version, and version with flexible wires to provide easy installation, cost savings and maximum performance in a lightweight and environmentally friendy compact package. Applications are in data critial environment such as IT, telecom and data encription but also in DC supplied industry automation.

The 5003 features a standard DC connector, offered in two different connector styles. The connector is encased with a 1-stage filter for currents up to 15 A at 125 VDC. The unit mounts to the equipment enclosure with a broad metal flange, thus providing a large contact area for optimal shielding and filter efficiency. The PCB mounting style version is available with optional snap feet to safely fasten the 5003 on the printed circuit board. The flexible wire leads allow an easy, fast and cost saving installation. Screw-on, snap-in and rivet mounting options are offered. The rear mount type with pre-threaded holes, as well as the snap-in, are designed specifically to reduce assembly time and save labor costs.

The series is ENEC and cURus approved and complies with IEC/EN 60950, standard for office and IT equipment. Applications include telecom and IT infrastructure equipment, data encryption machines but any other DC supplied equipment in industry automation.

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Employing Crydom’s proven DC solid state switching technology, the new LVD series provides a simple means of disconnecting batteries from their loads to prevent operational problems or damage resulting from deep cycle discharge.

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Crydom’s new "LVD" series of DC output Low Voltage Disconnect Solid State Switches is designed to disconnect 12 or 24 volt battery systems from their loads when the battery voltage falls below a pre-selected DC voltage. The LVD will also automatically reconnect the load circuit once the battery voltage returns to a normal value after charging. The LVD series is offered in a rugged industry standard encapsulated panel mount package with screw terminals.

The Crydom LVD series requires no operator interface to interrupt or reconnect the battery circuit. Featuring all solid state construction with a low Rds on resistance FET outputs rated at 40, 60, 80 or 100 amps maximum, the LVD series is available with 6 different threshold voltages to choose from. The LVD series is RoHS & China RoHS compliant.

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Finder has announced a complete family of 25A contactors, purpose designed for switching lighting, pump and motor loads in noise sensitive installations.  Incorporating an AC/DC silent coil with varistor protection, the 22 Series modular 2- and 4-pole contactors help meet the need for quieter operation, particularly in home, hotel and hospital environments.

Provided in compact 17.5mm and 35mm wide housings, the 22 Series contactors include a standard 35mm rail mounting for simple consumer unit installation and both mechanical and LED status indicators for enhanced system diagnostics.  The contactors’ minimum 3mm double break NO contact gap and protective separation between coil and contacts ensures installation safety standards are met.

Offering both 2- and 4-pole contactors, a choice of contact materials and multiple contact configurations, the versatile 22 Series provides users with 47 different options from which to select the optimum switching solution.  For extra flexibility, an add-on auxiliary contact block and an auto-on-off selector switch variant are also included in the series.

The contact material options are AgNi and AgSnO2, the first intended for resistive and slightly inductive loads as well as motor loads, the latter for lamp loads and high inrush current loads.  The contact configurations for the 2-pole products are 2NO, 1NO+1NC and 2NC and for the 4-pole products, 4NO, 3NO+1NC and 2NO+2NC.  The auxiliary contact block is provided in 1NO+1NC and 2NO versions.

The Finder 22 Series 25A modular contactors are designed and tested in accordance with EN 61095: 2009, electromechanical contactors for household and similar purposes.

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Schurter's IEC C14 inlet with EMI filter, series 5120 ECO design, meets the increasing demands of IT, medical and industrial appliances. The existing panel mount version is now available with flexible wire leads in addition to quick connect and solder terminals. A PCB mount version is also newly introduced. The new configurations provide easy installation, cost savings and maximum performance in a lightweight and environmentally friendly compact package.

The series combines an IEC C14 or C18 inlet with line filter in various mounting styles. With the addition of the flexible wire and PCB versions SCHURTER has again expanded its range of filtered power entry modules for low and high current applications. The EMI filter is dimensioned as a 1-stage filter for rated currents up to 15 A with a leakage current standard <0.5 mA and medical <5 μA. The positive electrical contact of the broad metal flange to the chassis ensures optimal filtering and shielding.

Mounting options include screw-on, rivet or snap-in mounting. The snap-in mounting style as well as the screw-on version from rear side with its pre-formed threaded holes reduces labor costs. The PCB mount version is available with optional snap feet to safely fasten the unit on the printed circuit board. The flexible wire leads provides pre-assembly for easy and fast installation.

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The 5120 is designed for use in IT, medical and industrial applications. The series is ENEC and cURus approved and complies with IEC/EN standards for office and medical equipment, 60950 and 60601-1 respectively.

Technical Features:
- Appliance inlet IEC C14 or C18 acc. to 60320 with EMI filter
- Current ratings: up to 10 A at 250 VAC (ENEC/UL/CSA) or 15 A at 125/250 VAC (UL/CSA)
- Screw-on or rivet mounting from front or rear side / Snap-in mounting
- PCB mounting / flexible wire connection / Quick connect terminals / Solder terminals
- Standard or medical version
- Version for enhanced withstand voltage available (X1, Y1)

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Crydom’s proprietary thermal management technology utilized in the new “SeriesOne DR” line offers 6 & 12 amp single and 6 amp dual channel output ratings in compact 11 & 18mm wide DIN Rail mounted SSRs.

Crydom’s new “SeriesOne DR” family of AC and DC output DIN Rail mounted Solid State Relays are intended for use in heating, lighting and motion control applications where DIN Rail mounting is preferred and higher output power ratings are required. Featuring a unique proprietary thermal management design with no exposed hot metal surfaces for safety, the SeriesOne DR family includes AC output ratings at 40°C ambient for single channel models of either 6 or 12 amps, and dual AC output models with 6 amps per channel, each rated at either 12 to 280 vac or 24 to 600 vac. DC output model ratings at 40°C ambient include single channel versions rated at either 6 or 12 amps and 1 to 60 vdc or 1 to 100 vdc.

The SeriesOne DR features 4 to 32 vdc, 90 to 140 vac, 208 to 265 vac or 18 to 36 vac inputs and includes an LED input status indicator. The SeriesOne DR 6 amp single channel versions are 11 mm wide while the 12 amp single channel and 6 amp dual channel SSRs are each 18 mm, all mounting on the industry standard 35 mm DIN Rail.

AC output versions offer 3.75kV all solid state optical isolation with SCR outputs and are available in either zero voltage turn-on for resistive load applications, or random turn-on for inductive load applications. DC outputs offer 2.5 kV all solid state optical isolation with FET output for either resistive or inductive load applications. SeriesOne DR SSRs are RoHS & China RoHS compliant, CE certified, UL and cUL recognized including both General Purpose and Motor Controller ratings.

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Cynergy3 is the leader in manufacturing of Liquid Level and Flow Sensors, High Voltage and Radio Frequency Relays.

Cynergy3 has developed an extensive range of Liquid Level sensors over the past 35 years by focusing on solutions for customer applications.

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Cynergy3 has been at the forefront of RF relay technology for 25 years, during which time it has developed relays for many specific communications applications, by working with world leading manufacturers of radio communications equipment.

Our seasoned group of engineers is available to assist you in creating a product solution that is perfectly suited to your specific application.

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With its latest ranges of compact yet versatile timing relays, Moeller Electric now offers convenient and cost-effective timer options covering virtually every control panel and power distribution application.

Special features of the Moeller Electric timer family include models for operation direct from 400V supplies, which are ideal for use in three-phase systems where no neutral is available, models with remote adjustment facilities, and ultra-compact versions just 17.5mm wide, which save valuable space in distribution boards.

Featuring the same design and dimensions as the popular DILEM contactors, DILET timers are well suited for control panel applications. They are available in three types, the DILET 11-30 which is an economical option where an on delay of between 1.5 and 30s is required; the DILET 11-M which also offers an on-delay function, but has ten timing ranges covering 0.5 seconds to 60 hours; and the DILET 70 multi-function relay which offers a choice of eight timing functions as well as the option of adjusting the setting with a remote potentiometer.

DILET timers can be supplied in universal versions for use with AC and DC supplies anywhere in the range 24V to 240V, and for 400V AC operation.

For applications where maximum versatility is required from a compact timing relay, Moeller Electric offers the ETR4 range. Just 22.5mm wide, these DIN-rail mounting units cover times of 0.05s to 100h in ten ranges, and offer a choice of different timing functions. The range offers a basic on-delayed timer, a star-delta timing relay and two multi-function relays, ETR4-69 and ETR4-70 offering eight timing functions. The ETR4-69 has a single changeover output contact, while the ETR4-70 has two changeover contacts and also allows the connection of a potentiometer for remote adjustment.

Both the ETR4-69 and ETR4-70 have an opto-isolated input to allow timing to be initiated from almost any kind of external circuit, and both incorporate LEDs that give a clear indication of current status.

Moeller Electric’s ultra-compact ETR2 timing relays have been specifically designed for use in distribution boards, and are the same size as most miniature circuit breakers. In spite of their small dimensions, they offer a timing range from 0.05s to 100h, and are available in six different versions, including a multi-function model. All ETR2 relays are suitable for use with AC and DC supplies in the range 24V to 240V.

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Schurter presents its new standard DC filter series FMER SOL suited for use on the DC side of the inverter in photovoltaic systems and other DC systems.

Modern solar inverters, that use MPP (maximum power point) trackers, generate disturbances into both the grid’s AC power line, as well as the DC side of the solar module. An AC filter is normally used on the grid’s AC power line, but the noise generated on the DC side tends to be overlooked.  EMC standards EN 61000-6-3 and EN55014-1, however, also put limits on the noise generated from lines not connected to the grid, such as for example the line to the solar panels. Meeting these limits can be achieved by using a DC filter on the DC side of the inverter.

Large solar inverters installed in electrical installations will generally require a cooling system. Components which provide high temperature resistance simplify the system and reduce the energy needed to cool. The FMER SOL filters are designed for rated currents from 25A to 1500A at 55°C ambient temperature, and voltages up to 1200VDC.  The filters are cURus and ENEC approved up to 75°C ambient temperature, with corresponding reduced rated currents.

The FMER SOL DC filters are designed with screw clamps for types up to 150A and copper bars for types upwards of 250A. Other types of connections, such as wires or copper bars <250A, are available on request.  Small adjustments can also be made to the electrical circuit or to the filter housing on request.

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Technical Data:
- Rated currents: 25A to 1500A at 55°C
- Operating voltage: up to 1200VDC
- Temperature range: -40°C to +100°C

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