E. Preston (Electrical) Ltd

Power without any doubts

Modern power supplies are a vital component in most areas of energy management and automation technology. The new CP-E range power supplies are the youngest members of the ABB power supply family. This range offers types with output voltages from 5 V DC to 48 V DC at output currents of 0.625 A to 3 A.

A high thermal efficiency corresponding with low power and heat dissipation, allow the operation without forced cooling. Functionality has been enhanced while the number of different types has been considerably reduced.

All power supplies of the new CP-E range are approved to all relevant world-wide standards (cULUS, IEC/EN 60950, etc.) and have both CE and C-TICK marks.

Characteristics of the CP-E range
• Output voltage 5 V, 12 V, 24 V, 48 V DC
• Adjustable output voltages
• Output current 0,625 A, 0,75 A, 1,25 A, 2,5 A, 3 A
• Power range 18 W, 30 W, 60 W
• Auto range input 100…240 V AC range (85…265 V AC, 90…375 V DC)
• High efficiency of up to 87…89 %
• Low power dissipation and low heating
• Free convection cooling (no forced cooling with ventilators)
• operating temperature range –10…+70°C
• Open-circuit, overload and short-circuit stable, automatic recovery
• Integrated input fuse
• U/I characteristic curve (fold-forward behaviour at overload – no shutdown) for devices > 18 W
• Redundancy unit CP-A RU offering true redundancy
• Status LED “OUTPUT OK”
• DC OK output (transistor) for 24 V devices (> 18 W)

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Do you give your motors a kick-start?  Or do you accelerate them nice and smoothly?  If you have a large motor, the answer is obvious: You install a softstarter to protect your electrical network.  But… what do you do if your motor is medium-sized or small?  You either start Direct-On-Line.  Or you install a Y/D starter. And keep your fingers crossed.

It doesn’t have to be that way any longer.  ABB is now introducing a state-of-the-art range of small, compact softstarters that covers applications from 3A up to 45A.  They are designed to meet our customers’ surveyed requirements:  “Better performance than Y/D… reliability and quality… tight dimensions… easy installation…possibilities of communication… and all of this, of course, at an attractive price!”  In brief, it’s a brand new concept in compact softstarters – it’s really a smart Starter!  Power and Productivity.

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To provide convenient cost-effective solutions for electrical distribution applications where a switched neutral is needed, Moeller Electric has expanded its popular and versatile range of xStart contactors to include new four-pole models. The new DILMP models cover AC1 current ratings from 22A to 200A in just four frame sizes, the new four-pole contactors feature identical dimensions for AC- and DC-operated versions, thereby simplifying panel design and construction.

Ideal for use in mains/standby changeover, heating control, and distribution systems for IT installations, xStart four-pole contactors, like their three pole counterparts, have specially designed low consumption coil assemblies.

Not only do these innovative coil systems reduce heating in the control panel and energy consumption, they also make it possible for contactors up to 45A to be controlled directly from inexpensive low current PLC outputs, thereby eliminating the need for inconvenient interposing relays or costly high-power output modules.

The use of the contactors with PLCs is further simplified by the integrated suppressor which is included as standard in all DC-operated versions.

The new contactors feature space-saving compact construction, are designed to make wiring fast and easy. Access to the coil terminals is at front-plate level and, for additional convenience and safety, double-chamber screw-clamp terminals are used throughout.

Moeller Electric offers a wide range of accessories for use with its new four-pole xStart contactors. These include mechanical interlocks for vertical and horizontal configurations, which need no additional space to be allowed between the contactors; auxiliary contacts in standard and early-make/late-break versions; suppressors for AC-operated types; and insulating shrouds.

To maximise user convenience, the new four-pole contactors use the same accessories as three-pole models in the xStart range.

Manufactured to the highest standards, xStart contactors are designed to provide maintenance-free operation for a mechanical life of at least 10 million operations. They comply with all relevant sections of IEC60947, as well as with appropriate UL and CSA requirements. In addition, they carry the CE marking.

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Crydom Solid State Relays (SSRs) are utilized in numerous medical applications. Crydom SSRs are used to control motors in hospital beds, examination tables, and rehabilitation equipment. SSR’s are also widely used for heating controls in sterilization equipment, blood warming units, and incubators.

Since Crydom SSRs utilize silicon for switching loads and therefore have no contacts that arc, contact contamination and the danger of sparking are eliminated. Coupled with an epoxy-filled encapsulation, the Crydom SSR is resistant to steam and other sterilization techniques.

The recent introduction of the Crydom MC series of SSR/controllers is an all in one solution that includes both a controller and a Crydom SSR in one package to control temperature, phase control, or soft start, soft stop functions.

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The new range of ABB switch fuses (Type OS630) has now expanded with sizes for 630 and 800 amperes for both DIN and BS type fuse links.

The new switch fuses are designed and tested for high safety in low voltage power distribution and motor control centers.

For more information, please contact the sales office at E. Preston Electrical, 0161 339 5177, or email  sales@epreston.co.uk

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Introducing the New Low Depth E-Stop

Johnson Electric / Saia-Burgess are proud to announce the introduction of probably the world’s smallest behind panel depth emergency stop switch as the latest introduction to the TH Contact range.

• Low profile behind panel
• Compact
• Suitable for small portable equipment
• Certified to the latest international safety standards
• Illuminated LED options
• Rotary reset in 3 styles
• Environmental protection to IP65

Requiring less than 20mm profile, the new TE1 series outperforms even the best.  With approval to EN418 standards (pending), 30mm or 40mm diameter buttons, 3 styles and illuminated options, the TE1 is the obvious choice when you demand the ‘best in class’ safety equipment components for your machine users.

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Finder has announced the launch of the 93.21 series multifunction timer socket, for use with the 34 series electromechanical and solid-state relays. The sockets are aimed at panel builders, systems integrators, OEMs and installers of control systems for machines and processes, and also for applications in building management systems (BMS). They are particularly suitable for use where space constraints are a major consideration, or where rapid output switching and long operational life are required.

The ultra slim sockets are only 6.2mm in width, making them ideal for use in systems where the available mounting space is minimal. Their multifunction and multirange capabilities, along with the ability to accept either plug-in electromechanical or plug-in solid-state relays, means that a single socket model is suitable for a wide range of applications, with the added benefit that the switching element is easily replaceable.

The timer sockets feature 4 time ranges with intervals ranging from 0.1 – 3s up to 0.3 – 6 hours, and 4 selectable timing functions – ON delay; ON pulse; Symmetrical recycling with ON start; and fixed pulse delayed. Precision of regulation over the entire scale is specified as ±5%, and maximum switching capacity is 6A.

The 93 series timer sockets operate at a DC or AC supply voltage in the range 12 – 24V. Both screw and screwless termination options are available for flexibility in integrating with both types of wiring system, and a tamper proof setting mechanism avoids accidental maladjustment. The sockets can be used with 20 way jumper bars, which helps to save time in wiring common connections.

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Finder has announced the introduction of the 41.81 series of solid-state relays, which offer silent, high-speed switching of AC or DC loads, to meet the need for relays that operate reliably at rapid machine cycle rates, with minimum maintenance and without incurring mechanical wear.

The 41.81 series is aimed at designers and system integrators of automation and processing equipment, including mechanical handling, assembly and filling machines, and will be particularly suited to applications requiring high operating speed and long electrical life, especially those where silent operation is also desirable.

The solid-state relays are available in AC and DC output switching types. Type 41.81-9024 switches 1.5V to 35V DC, nominally 24V, at current levels up to 5A. Type 41.81-8240 switches 240V AC nominal (12 – 275V max.) at 3A, and features zero crossing switching to minimise electrical interference. Both models feature a low power 0.2W coil. Maximum peak current is rated at 120A for a period of 10ms, making the relays suitable for use with high inrush inductive or capacitive loads.

The relays are housed in a small, low profile, wash-tight RT111 package with an industry standard pin layout. The package offers flexibility in mounting options: it is suitable for mounting either directly onto a PCB or into a 93 series socket, which in turn can either be fixed to a PCB or mounted onto a 35mm DIN rail.

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Big Power in a Small Package!  Crydom PCB Mount Solid-State Relays Reduce Panel Space Requirements While Maintaining Power Capabilities

Crydom, an operation of Custom Sensors & Technologies (CST) and North American Leader in solid state relays, announces the most extensive line of standard and custom PCB mount power solid state relays available to the European and Asian markets. These relays offer ratings from 1 amp to 25 amps (forced air) at line voltages up to 660Vac., which makes them ideal for literally hundreds of commercial and industrial switching applications. Their compact design is also well suited for high-density PCB applications. Moreover, these relays contain no moving parts, which provides for silent operation and life expectancies at full-load current in excess of 50 times most electromechanical relays.

These compact solid state relays are ideal for use in numerous commercial & industrial applications, including: electromechanical relay replacement, pump control systems, gaming equipment, vending machines, security systems, medical equipment, solenoid control, packaging equipment, printing machines, and much more.

Versions are available with either a zero-crossing (resistive loads) or random turn-on (inductive / phase control loads) output. UL Recognition, CSA Certification, VDE Approval, and CE Compliance available on most models.

• Ratings up to 25A (forced air) @ 660V AC
• SCR output for heavy industrial or commercial loads (most versions)
• Available in standard in-line, mini in-line, or dual in-line packages
• Life expectancy in excess of 50x typical electro- mechanical relays at full-load current
• No moving parts eliminates all acoustical noise
• Not sensitive to magnetic fields
• Custom models available upon request
• RoHS Compliant

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The new padlock device M800 complies with all requirements of the IEC and in combination with an additional padlock device mounted on the switch itself also with UL508A.

The new padlock device convince by its simple and robust design while featuring a compact unit. 
  
Padlock device M800 

 
The main features are:
   
• Single hole mounting with integrated door clutch.    
• IP66/67 protection degree.    
• Applicable for all cam switches of size S1 and S2 and KG41B, KG64B, KG80, KG100, KG105, KG125-KG317.    
• Door interlock in the OFF-Position while a padlock is fitted and also in the ON-position.    
• The door can be open in the non locked OFF-position, only.    
• Override Function in the ON-position.  The door clutch may be opened only if the witch is in the OFF-position. In special cases, however, authorized people have a requirement to open the door, even if the switch is in the ON-position.    
• Accepted Misalignment: ± 3mm horizontally, ±5mm vertically.    
• Maximum 3 padlocks with a minimum shackle diameter Ø 5 - 8 mm.

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