Category Archives: Product Announcements

Finder 15 Series Master & Slave Dimmers

Finder.jpg

Finder’s latest dimmer solution is simple, flexible and powerful, thanks to the principle of Master and Slave Dimmers.

1511-10_35mmRail

The Master Dimmer produces a 0 -10 V signal proportional to the required dimming level which, when connected to the terminals of the Slave Dimmers, will control the voltage applied to the lamps and therefore their brightness.

Suitable for halogen, dimmable LED and CFL lamps, electronic and electromagnetic transformers, the 15 Series offers a dimming ramp speed adjustable between 1 and 10 seconds. One Master Dimmer can control up to 32 Slave Dimmers, driving, for instance, one Slave Dimmer for LED lamps, another to drive halogen lights, and a third to drive electronic transformers.

Finder’s Master Dimmer features four selectable functions: Dimming with or without memory, Dimming with memory specifically for CFL, and the new function ‘Staircase with Switch-off early warning’ where the lights are full-on for the time period set by the user but then dim prior to the end to give an early warning. Up to 15 illuminated push buttons can be connected.

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Schurter DC12 Protection Class II Compact Power Entry Module for Protection Class II Equipment

Schurter Logo1.jpg

Schurter expands its wide range of power entry modules to include versions, without ground pin, for use in Protection Class II double-insulated applications. The DC12 power entry module is already popular for use in Protection Class I equipment, due to its high performance switch and EMC filter functions integrated into one compact package. The new Protection Class II version is perfectly suited for medical equipment used at home where the medical standard prescribes the use of Protection Class II design.

DC12_class

The new DC12 Class II version is according to IEC 60320-1, style C18. It is particularly well suited for use in medical equipment according to the IEC standard 60601-1-11, which outlines additional safety measures specific to medical equipment intended for use in the home. There is increasing demand for
such equipment as populations around the world age and healthcare costs continue to rise.

Protection Class II equipment, in contrast to Protection Class I equipment, generally has no metal case. This category of equipment is called double insulated, and requires higher safety levels for energized components relative to exposed surfaces. The DC12 Class II power entry module provides double
insulation between energized components and exposed parts. This reinforced insulation is tested with a voltage of 4000 VDC between the energized conductor (L) and the neutral conductor (N) relative to the filter case.

The DC12 line switch is available in 1- or 2-pole and touts high inrush current withstand capability. The EMC filter is available in medical and low leakage, M5, versions. This integrated filter at the power input provides highly effective interference suppression, which results in optimized electromagnetic
compatibility. Current ratings range from 1-10 A at 250 VAC. Versions with quick-connect or solder terminals are available. The DC12 is available in black or white. Mating V-Lock cord sets are available to safeguard against unintentional disconnection of the power. The DC12 Class I and Class II are ENEC and cURus approved. They are suited for use in equipment according to IEC 60950, IEC 60601-1, in addition to IEC 60601-1-11.

Technical Data / Approvals / Prices
- IEC C18 power-inlet connector with 2-pole switch and a filter
- M5 medical filter
- Rated currents: 1, 2, 4, 6, 10A (ENEC / UL / CSA) at 40°C
- Screw or snap-in assembly
- Optional V-Lock plug-retention safeguard
- Version in white available

Application
- For totally insulated equipment according to IEC 61140
- Suited for medical equipment according to IEC 60601-1
- Especially well suited for medical equipment intended for use in the home according to IEC 60601-1-11

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Honeywell Pressure Switches Series HP, HE, LP, LE

Logo.jpg

Honeywell Pressure Switches
High Pressure: HP Series, HE Series
Low Pressure: LP Series, LE Series

Honeywell Pressure Switches are durable, reliable electromechanical gauge pressure on/off switches that are available with either single pole single throw (SPST) normally open or normally closed circuitry, or single pole double throw (SPDT) circuitry. Their IP67 environmental sealing and high proof pressure and burst pressure ratings allow for use in many rugged applications that require the making or breaking of an electrical connection in response to a pressure change of the system media.

 HP-HE-LP-LE-Series_Large

The media (gas or liquid) pressure is applied via the port of the switch to a diaphragm or sealed piston. A pre-compressed spring on the other side of the sealed piston or diaphragm controls the set-point pressure. If the force resulting from the pressure is greater than the load on the spring, the electrical contacts within the switch will change state. If thecontacts are normally open when no pressure is applied, they close on increasing pressure when the set point is reached. On decreasing pressure, the contacts will open again at a pressure somewhat less than the set switching point. The difference between the activation point on increasing pressure and the deactivation point on decreasing pressure is called hysteresis. The set point pressure for the switch can
be configured such that the switch will actuate on increasing or decreasing system pressure.

VALUE TO CUSTOMER
• Reduce total cost of ownership due to comprehensive selection of ports, electrical terminations and compatibility with a variety
of media
• Help to protect operators and critical equipment subsystems due to up to 2M life cycle rating, IP67 sealing, and high burst
pressures—making them one of the most durable in the industry

POTENTIAL APPLICATIONS
Transportation
• Agricultural machinery
• Heavy duty construction machinery
• Heavy duty trucks
• Lawn & garden
• Marine vessels
• Material handling machinery
• Railway

Industrial
• CNC machines
• Compressors, boilers
• Fracking equipment
• Food & beverage equipment
• Generators
• HVAC/R equipment
• Mud pumps
• Pneumatic equipment
• Presses and punches
• Pressure washers
• Trash compactors
• Water jet cutting machines
• Water pumps

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

 

Eaton PowerXL DE1 Variable Speed Starter

Eaton Logo

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.

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Eaton PSG Power Supplies

Eaton Logo

Eaton is adding 14 new models to its successful line of PSG power supplies. The line extension includes 12 Vdc output models, redundancy and buffer modules, and more to provide efficient control power and increase system reliability. The line extension meets the needs of various applications and features.

PSG SeriesBenefits:
• 12 Vdc output
• NEC Class 2 rated model
• Redundancy modules
• Buffer module
• IP20 finger-safe terminals
• 3-year standard warranty

Market Segments:
• Mining and metals
• Oil and gas
• Municipal water / Wastewater
• Other industrials and processing

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Schurter IEC Cord Connectors C21 and Appliance Inlet C22

Schurter Logo1.jpg

1658 – 1659 – 1681
Schurter IEC Cord Connectors C21 and Appliance Inlet C22
For Very Hot Conditions 155°C
IEC 16 A / UL/CSA 20 A

Series C21_C22

 

Schurter introduces its high temperature inlet and cord connectors series to extend its range of IEC high-temperature power inlets and outlets according to IEC. The high-temperature appliance inlets and cord connectors are designed according to IEC for 16 A at 250 VAC, and according to UL / CSA for 20 A at 250 VAC.

Series C21_C22 Pin temperature may reach a maximum of 155°C. Furthermore, the appliance inlets and cord connectors meet the requirements of IEC 60335-1 for household appliances, which covers enhanced requirements of glow wire tests for unattended household appliances according to IEC 60695-2-12 and -13. They have certifications from ENEC, UL/ CSA and CCC.

Series C21_ C22The high-temperature appliance inlet, series 1681, offers types for snap-in or screw-on mounting. The inlet can be specified with terminals for solder, quick-connect or screw connections. The cord connector comes in a straight, series 1658, and an angled, series 1659, design. Cables with a conductor cross-section of up to 2.5 mm2 or 10 AWG can be used.

The IEC high-temperature appliance inlet and the cord connectors are RoHS and CHINA-RoHS compliant. They are used in equipment that operates in elevated ambient temperatures and/or with high currents, such as datacom equipment, where increased power and decreased size are trending, as well as portable industrial equipment such as heating systems.

Applications
• Power Supplies
• IT / Telecom equipment
• Server / Data Storage
• Furnaces, Heating Equipment, Ovens
• Lighting systems

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Honeywell TBP Series Basic Board Mount Pressure Sensors

Logo.jpg

Honeywell is pleased to announce its new Basic Board Mount Pressure Sensors, Compensated, Unamplified TBP Series. These new sensors are designed for customers who require a simple, high quality, cost-effective, basic performance, mV output device. They are compensated and unamplified, ideal for customers who want a temperature-compensated sensor with the maximum possible resolution.

TBP SeriesFEATURES  &  BENEFITS
Wide pressure range: 60 mbar to 10 bar; 6 kPa to MPa; 1 psi to 150 psi
• Small: 7 x 7 mm [0.276 x 0.276 in] is very small when compared to most board mount pressure sensors, occupying less space on the PCB and typically simplifying placement
Wide compensated temperature range: 0 °C to 85 °C [32 °F to 185 °F]
Media compatibility: 
Non-silicone-gel coating: The input port is limited to non-corrosive, non-ionic media such as dry air and gases and should not be exposed to condensation
Silicone gel coating: Uses the same materials in the wetted media path but is protected from condensation by a silicone-based gel coating

Various package styles:
DIP (Dual Inline Pin)
Leadless SMT (Surface Mount Technology)
SMT

Various pressure ports: 
DIP: Single axial barbed port and low-profile port
Leadless SMT: Single axial barbed port and low-profile port
SMT: Single axial barbed port and low-profile port

Supports Lean manufacturing
J-STD-020-D MSL 1 unlimited shelf life after packaging is opened
System can be calibrated within one hour after reflow solder
Compatible with modern lead-free and no-clean solder processes

ISO 9001 compliance

POTENTIAL  APPLICATIONS
Medical
• Hospital beds
• Oxygen concentrators
• Wound therapy
• Blood pressure monitoring

Industrial
• HVAC transmitters
• Air movement control
• Environmental control
• Leak detection
• Industrial controls
• Pneumatic controls
• Other commercial applications

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

 

Schurter UMK 250 Ultra Small Space-Saving Fuse and Fuseholder Combination

Schurter Logo1.jpg

UMK 250Schurter is expanding its range of surface mount fuses with the introduction of the UMK 250 series. The quick-acting characteristic of this fuse is in accordance with IEC 60127-4, providing the logical addition to the existing UMZ 250 time-lag series. The UMK 250 provides primary and secondary overcurrent and short-circuit protection.

Schurter offers the UMK 250 in ten rated currents from 500 mA to 4 A. The fuse and clip combination is designed for easy fuse replacement. Rated for the protection of primary and secondary PCB circuits, the UMK 250 is designed for applications including power supplies, medical equipment, lighting and devices for home and industrial use.

This series is RoHS compliant and compatible with lead-free soldering processes. The UMK 250 fuseholder is an ideal substitute for similar SMD fuses, where the fuse clips are not offered. The compatability of the solder pads allows the SCHURTER product to be used in cases where the ability to replace the fuse is desired. The installed fuse-link UMF 250 is considered an Universal Modular Fuse (UMF) and carries VDE and cURus approvals. This ultra-small fuse
including clip is 11.3 x 4.2 x 4.0 mm with a breaking capacity between 100 – 200 A at 250 VAC /
125 VDC.

Technical features:
- Rated Current range: 500 mA to 4 A
- Rated voltage: 250 VAC and 125 VDC, according to IEC
- Breaking capacity: 100 – 200 A @ 250 VAC / 125 VDC
- Characterisitc: Quick-Acting F, according to IEC 60127-4
- Component size including Clip: 11.3 x 4.2 x 4.0 mm

Applications:
- Primary and secondary overcurrent protection
- Lighting
- Medical appliances
- Industrial electronics

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Schurter KFA and DA22 Standard with Notch for V-Lock Cord Retaining

Schurter Logo1.jpg

KFA_V_Lock_Pressebild

Schurter is pleased to announce, that its compact KFA and DA22 Series power entry modules, with 1- or 2-pole fuseholder and filters, now mates with V-Lock cord sets. The KFA’s and DA22’s new V-Lock compatible feature prevents unintended disconnection of the power from the equipment.

Unlike wire bail or clamp accessories, no additional costly hardware is necessary to install the cord retaining system. The cordset safely latches into a notch in the plastic housing of the KFA and DA22. Removing the cordset is easily achieved by depressing the latch. V-Lock power cords are offered in a wide range of cord lengths and country-specific plugs, including NEMA 5-15 standard hospital grade versions.

The KFA and DA22 are ideal for use in medical devices, IT and audio equipment used on stage, where the power to the equipment must withstand mechanical stress on the cord. It features C14 inlet, 1- or 2-pole fuseholder for 5x20mm fuses, mains filter, 4.8 x 0.8mm quick-connect or PCB terminals, and screw-on or snap-in mounting. Optional voltage selector allows for use in international markets. Current rating 1 to 10 A at 250 VAC.

Approvals include UL, CSA, VDE and CCC.

Features and benefits:
- Power entry module with 3 functions: Appliance Inlet, Fuseholder and Line filter
- Suitable for use in medical equipment according to IEC/UL 60601-1
- Optional fuse drawer “extra-safe” according to IEC/UL 60601-1
- V-Lock retaining system for mating cordsets
- No additional components required for cord retentionFeatures and benefits:
- Power entry module with 3 functions: Appliance Inlet, Fuseholder and Line filter
- Suitable for use in medical equipment according to IEC/UL 60601-1
- Optional fuse drawer “extra-safe” according to IEC/UL 60601-1
- V-Lock retaining system for mating cordsets
- No additional components required for cord retention

.

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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

Hylec DEBOX – The Only In-Line Junction Box You May Ever Need

Hylec-APL launches its new DEBOX junction box. The virtually tool-less design facilitates installation faster than the leading competitor and offers greater flexibility. For use in internal applications in a variety of different industries, but especially in the lighting sector, it will reduce time on-site and in turn reduce the overall costs of installation.

DEBOX

The DEBOX features:
•   4 Pole, 24 amp, 4mm terminal block supplied as standard.
•   Can be used with screwless terminals, Kwik-Wire commoning terminals or IDC connectors
•   Can accommodate flat or round profile cables
•   Polypropylene UL 94 V2 material
•   Fixing pin clips the lid in place quickly and effectively
•   Two mounting ears for secure external fastening
•   Virtually tool-less assembly

 

Enquiry Form: http://www.epreston.co.uk/enquiries.php

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