Category Archives: Switchgear

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’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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Hylec IP-67 Rated Isolator Switch Box Ensures Machine Safety

AC and DC versions; suits industrial, commercial, machine tools, security,
power supplies and HVAC applications

isolator-boxHylec-APL, the specialist supplier of electrical components and enclosures, is launching a new range of isolation switch boxes.  The new range boasts the best price / performance ratio on the UK market, providing fast electrical isolation for multiple applications, including industrial machinery, commercial buildings, power supplies, security equipment and HVAC.  Isolator AC and DC models are IP67 rated, completely preventing dust and dirt ingress and providing protection from water up to a depth of 1m.  In addition, Isolator switch boxes are manufactured from completely flame retardant polycarbonate rated to UL94V-0, providing an additional and often vital margin of safety over competitive products with a lower flame-resistance rating.

The Isolator AC models are 20A, 25A, 32A, 40A and 63A, with rated operating current for AC-23A circuits of 15A, 20A, 22A, 30A and 43A respectively.  For 3-phase AC installations, rated voltage is 11A, 13A, 15A, 22A and 36A. An 80A AC ISOLATOR switch box will be introduced in early 2017. The three DC Isolator models are 16A, 25A and 32A, with rated insulation voltage of 1500V and rated impulse withstand voltage of 8000V.  Contacts are silver plated alloy which provide superior oxidisation resistance and increased reliability. At just 98mm x 80mm x 145mm, the 20A, 32A, and 40A AC models are very compact, yet highly visible with bright yellow covers and red switches for easy identification.   The larger 63A AC and DC models measure just 98mm wide x 81mm high x 180mm long, again providing a neat, compact solution in all commercial and industrial environments. The Isolator range has TUV approval, and UL approval is applied for.   All sizes are available in 4-pole versions.

 

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Eaton DIL DC Contactors – High DC Switching Made Simple. Maintenance-Free, Reliable, Cost-Effective

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Save Time and Costs with Eaton DC-Contactors

Clever Use of a Proven Technology
Thanks to the use of proven hybrid technology, the contacts in Eaton DC contactors have a long lifespan and low contact wear. Hybrid contactors feature two mechanical contacts – a extinguishing contact and a break contact – that are connected in series.

DIL DCMoreover, they have an IGBT power semiconductor switch connected in parallel with the extinguishing contact. When one of these contactors is switched off, the first thing that happens is that the IGBT is switched on. After this, the extinguishing contact opens mechanically, commutating the current to the IGBT so that it can be interrupted by the power electronics. Finally, the break contact is opened in a de-energized state, achieving the required potential isolation.

 

Together with this configuration, a wide-range coil for DC and AC voltages makes our DC contactors a maintenance-free and reliable part of any machine or system.

Efficient and Compact
• With up to 150,000 operations, these units have a lifespan that is six times longer than that of comparable devices
• No maintenance costs, resulting in lower operating costs
• Lower switching contact wear as a result of extremely short arcing times
• Convenient to switch on and off: either conventionally or directly with a programmable logic controller (PLC)
• Compact frame size designed to save space
• Very short opening and closing times of main contacts

Reliable and Flexible
• Wide control voltage range of 110 V – 250 V AC, 110 V – 350 V DC
• Globally certified: UL, CSA, CCC, GL, DNV
• Bi-directional operation (polarity insensitivity) ensures ease of use
• Wide temperature range of -40 °C to +70 °C

Ideal for a Large Variety of Applications
• Solar power
• Rail traffic
• Marine & Offshore
• Energy storage
• Automotive charging infrastructure
• DC grids

Designed for Industrial Use
• Universal concept
• Fast and easy to install thanks to tried-and-true terminal types
• Based on Eaton’s well-known contactor technology

 

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Kraus & Naimer New Mobile App Now Available

K&N Logo B.jpg

The new Kraus & Naimer UK switch wiring diagram app is now available to download for android and IOS devices.
A useful aid in the switch selection and installation processes.

MobWiringApp

Play Store – Android:
https://play.google.com/store/apps/details?id=com.ionicframework.krausnaimer318761

App Store – IOS:
https://appsto.re/nl/bm6t6.i

 

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Eaton Dumeco DC Switch-Disconnectors for Handling Demanding PV Applications

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Power management company Eaton offers Dumeco DC switch-disconnectors to help solar PV equipment manufacturers and installers gain a competitive edge within the increasingly significant solar power market. These innovative products stand alone as cost-effective, reliable and safe solutions; they also integrate efficiently and easily with matched Eaton components into a continuous channel that transports energy safely from the solar module to the power grid.

Dumeco-DCThe DC switch-connectors are being made available in four frame sizes; the largest has 800 A, 1000 A and 1250 A options, while the smallest offers 63 A, 80 A and 100 A versions. Accordingly, the devices are suitable for applications ranging from residential and light commercial rooftop sites to large commercial and utility scale installations, as well as solar combiner box and inverter equipment.

This switchgear is available in 2-pole configurations that reduce the need for bridging links between the poles; this cuts installation time and copper costs. Bi-directional pole connection gives installation flexibility. The units’ minimal footprint of up to 52 per cent smaller than any competing product allows installation space savings. An independent manual operating mechanism controls special self-cleaning roller contacts which provide long term safety and reliability.

Operation is through either a direct handle or an extension shaft of up to 600 mm and handle for thru-the-door interlocking. IP65-rated grey or red/yellow K Line handles are available, with both padlock and cylinder lock versions. Door interlocking configurations include a ‘defeatable’ option in the ON position for fault finding. An auxiliary switch set is also available; this offers 1NO+1NC contacts.

The Dumeco DC switch-connectors are rated to 1000 V DC, are compliant with standard EN-IEC 60947-3 and have CE, CCC, RoHS and EAC certifications. They offer high short circuit ratings and operate to utilization category DC-21B. The units are suitable for base plate mounting.

This new range of DC switch-connectors is built to handle the most demanding of PV applications, while providing reliable isolation to ensure safe operation within an installation. Perfectly aligned with the robust Dumeco AC switch-disconnectors, it enables an excellent all-round AC/DC package. The products offer an attractive solution to distributors, installers and manufacturers due to their competitive pricing, cost-saving features, proven reliability and compact, flexible design. They form part of Eaton’s comprehensive global portfolio that serves the renewable energy segment.

 

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Eaton PowerXL DE1 Variable Speed Starter

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A New Species

The new Variable speed starter (VSS) from Eaton offers alternatives for drive engineering

The increasing automation of machines and the increasing legal requirements with regard to energy efficiency have resulted in a significant rise in the demand for variable frequency drives. At the same time the motor starter has established a strong position on the market. In order to bridge the gap between the two, Eaton is now offering a new device class: the Variable speed starter (VSS).

Electrical speed control using variable frequency drives continues to gain importance. The Motor Regulation EC 640/2009 of the European Union is a driving force here, stipulating the mandatory use of IE3 motors directly on the grid or likewise the use of IE2 motors with variable speed drives from 2015. This means that there is an increasing move away from the motor starter towards the variable frequency drive, particularly with simple applications.

Benefits of the motor starter and variable frequency drive combined

There is clearly a gap between these two most widely used methods of controlling electric motors. One the one hand, there is the motor starter with its easy handling and high level of reliability and yet limited functionality. On the other hand, the variable frequency drive provides the required variable motor speed and a wide range of functions, but involves a greater degree of complexity. The move towards the variable frequency drive therefore presents many users with some challenges since it is a highly complex device and normally requires a comprehensive knowledge of drive engineering.

As a pioneer and one of the leading specialists for all aspects of switching, protecting and driving motors, Eaton has developed a new device class that combines the benefits of the motor starter with those of the variable frequency drive. The so-called Variable speed starter (VSS) can be handled as easily as a motor starter but offers the possibility of variable speed control at the same time.

DE1 large

 

Simplicity at first glance…

Eaton is launching the new device class under the product name PowerXL-DE1, first of all in two sizes. The slim-line FS1 version with a width of only 45 mm is ideal for controlling motors up to 1.5 kW, while the FS2, double the width at 90 mm, is designed for ratings from 2.2 to 7.5 kW. At first glance, these devices are the embodiment of simplicity.

Their attractiveness lies in the fact that there are no buttons and operating elements. This makes a simple “out-of-the-box” installation possible, i.e. the installer just has to take the device out of the box, wire it up like a motor starter, and it is already operational. The fact that the DE1 requires no parameter setting means that the probability of installation errors is kept to a minimum and therefore also the time required up to commissioning. Three LEDs indicate the status and operating mode of the unit at a glance. The table provided directly on the device gives a clear explanation of the color coding and flash frequency.

…impressive trip free design at second

Besides simple handling, Eaton has also integrated the aspect of reliability into the new device class. The trip free design of the Variable speed starter (VSS) ensures maximum availability. This concept comprises the ability of the DE1 devices to detect the regenerative energy feedback from the motor and to thus lengthen the ramp automatically. It also includes a DC braking function and the function of automatically reducing the switching frequency to prevent the device temperature from being exceeded. However, in the event that a fault causes the device to switch off, the automatic restart function makes it possible to ensure continuous motor operation. This means that the manual reset of the fault is no longer necessary providing that safety is not impaired.

The benefits of the trip free design are easily demonstrated in practical applications. Imbalance can be a genuine problem in many applications where centrifugal forces are present (e.g. industrial washing machines). On the one hand the motor must accelerate the load, whilst on the other hand, the imbalance mechanically accelerates the motor so that it runs faster than set by the variable frequency drive. This results in regenerative energy feedback into the DC link circuit. Normally the energy must be discharged via a braking resistor. The DE1 offers a refined alternative: An internal algorithm ensures that this does not increase the DC link voltage to impermissible values and thus initiate a shutdown – and all that without the use of a braking resistor.

Fans are another area of application. The air flow in a pipe system can mean that fans often rotate when the driving motor is not switched on. If a speed controller is then required to switch the motor that is already rotating, the controller may be switched off in certain circumstances on account of overcurrent. With these kinds of applications, the DE1 Variable speed starter (VSS) is able to brake the motor with DC current before the motor actually starts in order to prevent the unwanted shutdown. The device therefore ensures fault-free operation even here.

DEFS1

A large market gap

The variable speed starters are factory fitted with internal EMC filters so that they are suitable for use in industrial networks as well as in public utility grids (category C1, C2, C3) without the need for other external EMC filters.

With this unique performance profile and its design for ambient temperatures from -10 to 50 °C (60°C with derating) the Variable speed starter (VSS) meets the demands of several applications on the market for which there was previously no ideal solution. This includes, for instance, applications for which a DOL starter and star-delta starter combination or a soft starter cannot be used since the motor draws a large starting current but does not permit a reduced starting torque. This also applies to materials handling applications, when machines or crushers have to be started up at once under full load after a stop. Even for many simple applications, such as in the field of transport technology, regular variable frequency drives are often overdimensioned, i.e. too elaborate, too expensive and complex.

Many machine builders, who are required to move media such as air or liquids, are now challenged by the requirement of the ErP Directive to design a new drive concept for fans and pumps in order to achieve the prescribed minimum efficiency values. If they have previously used a motor starter and controlled the flow rate mechanically or hydraulically, such as with throttle valves, they are now faced with the challenge of switching to a power-dependent control through the possibility of variable speed adjustment.

The variable speed starter is also ideal for applications requiring a fixed speed that cannot be implemented with the mains frequency. This is often the case in the wood industry where motors are run at high speeds (e.g. 18,000 rpm). The DE1 also offers an alternative where a constant speed is required, but where an IE3 motor cannot be used due to the different mechanical dimensions compared to IE2 motors.

Operation options: Screwdriver to remote keypad

The variable speed starter also offer considerably more options than is seen at first and second glance. A pluggable and universal configuration module, the DX-EXT-SET, enables the operator to change the most important parameters from the factory setting with a screwdriver – without the need for a keypad, software or manual. This means that ramp times, motor protection, mains frequency and terminal configuration can be set ergonomically. Once the parameters have been set via the operating elements on the front, the configuration module can “mechanically store” this parameter set, which can then be transferred directly to other variable speed starters – simply by plugging onto the DE1 device and pressing the Set button. This function simplifies and speeds up commissioning in series production or when replacing a device in the event of a fault.

Eaton also offers users external keypads with LED or OLED displays, already known from the PowerXL series, for an alternative method of parameterizing and operating the DE1, as well as a Bluetooth communication stick for the simple copying of parameters from one device to others. Like all devices of the PowerXL series, the DE1 is also compatible with Eaton’s drivesConnect software. This software and the keypads enable up to 63 devices (DE1, DC1, DA1) to be combined in a drive network and now operate and parameterize them centrally as stations of the network. The DE1 comes with a Modbus interface as standard and can also be integrated directly in Eaton’s innovative SmartWire-DT communication system.

The new PowerXL-DE1 Variable speed starters (VSS) that comply with the international CE, UL, cUL and cTick requirements thus provide machine and system builders with a cost-effective and at the same time highly reliable alternative for worldwide use in order to make applications with a previously constant speed more energy efficient and in compliance with the increasing international legal requirements.

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Hylec-APL Offers the DE01 Series Pre-Installed IP67 Control Stations

Hylec-APL now offers the DE01 range of pre-installed control stations which combine tough IP67 enclosures with hard wearing push button and selector switches reducing time spent on-site. Installation is further aided thanks to unique, snap-on brackets for easy wall, chassis and DIN mounting.

DE01 Series*  Variety of sizes and depths to accommodate different application requirements
*  Thick walls constructed from robust ABS material
*  Up to IP67 protection depending on switch options
*  Snap-on bracket mounting available for DIN rail or chassis / wall mounting
*  Selection of push button and selector switch types and combinations are available
*  Suitable for indoor and outdoor use in domestic, commercial and industrial applications
*  All products comply fully with ROHS and REACH standards

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Now the Eaton Moeller Series SmartWire-DT Is Smarter than Ever!

The revolutionary SmartWire-DT system from Eaton’s Electrical Sector, which virtually eliminates the need for conventional control wiring in panels and on machines, is now even more versatile and convenient. This follows the addition of devices with integral SmartWire-DT connectivity to two key product ranges – easy800 control relays and PKE motor-protection circuit breakers.

In many applications, easy800 programmable control relays with SmartWire-DT make it possible to implement sophisticated control systems without the need to use programmable controllers (PLCs), which means big savings in costs and complexity. In addition, Eaton’s easySoft-Pro software makes easy800 relays simple to program, even for users who have no specialist programming knowledge or experience.

The new easy800 relays are suitable for applications with up to 320 I/O and are programmed using straightforward and well-known ladder diagram techniques. The easySoft-Pro programming software now includes SmartWire Assist to configure external devices, allowing control systems that incorporate the new relays to be drawn, configured, programmed and tested using just this one intuitive software package.

Equally well suited for use in control systems based on easy800 relays, and those based on conventional PLCs, PKE motor-protection circuit breakers with SmartWire-DT allow users to monitor the operation of their motors in detail and in real time. The PKE units can report via the SmartWire-DT connection a wide range of operating parameters that include motor current, motor fault conditions and overload status. This is achieved without the need for additional hardware like current transformers and specialist relays, which are not only costly to buy, but are also inconvenient to fit and wire.

A key benefit of the information supplied by PKE units with SmartWire-DT connectivity is that, in many cases, it allows developing problems to be identified and addressed before a motor trip occurs, thereby greatly reducing downtime and costly production losses.

SmartWire-DT from Eaton is a powerful and versatile communications system that enables switching and control devices, such as contactors, circuit breakers and pushbuttons, as well as analogue I/O devices, to be connected quickly and simply using pre-fabricated plug-in cables. This saves time in building and testing control systems, as well as virtually eliminating the risk of wiring errors while greatly increasing the ease with which future modifications can be made.

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