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The new KF-series features exceptionally large isolation distances and offers high AC-23A motor ratings.  It covers the range from 16A to 32A and offers disconnect capability of up to 1000V according to IEC 947.  The rotary contact system incorporated in a new type of modular contact block allows high mechanical life expectancy and precise and reliable contact making.

The innovative modular system is both simple and very safe while offering enormous flexibility.  All available modules can be combined, exchanged or added in the field, as can the very precisely working cam-operated auxiliary contacts.  The position of the various modules in relation to each other
can be defined by the user or, if preferred, preassembled in the factory.

* Coupling profile determines pre-closing function of switched 4th pole,
  i.e. contact modules per se are always the same

* Rotating contact movement (instead of classical vertical lifting) allows
  big contact gaps
  high mechanical life expectancy
  very precise movement sequence
  self-cleaning contacts
  forced opening and closing of contacts

* Compact (very shallow) design

* Up to 1000V insulation voltage according to IEC possible

* Lateral drive possible (latching module not in the centre but on left or right hand side)

* Visible contacts (windows) available on request

* Design allows a big variation of terminal markings

* Removal from DIN rail can be done without tool change (screw driver for cross-recessed screws sufficient)

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With the newly designed G20 the “Knife contacts” have been designed in a new way resulting in a switching capacity of 20 Amps at 1000V DC (DC-22A) and high short circuit withstand capability.  Finger-proof terminals according to EN 50274 and protection degree IP20 offer maximum safety.

In combination with a standard latching mechanism, the G20 complies with all regulations required for main switches according to IEC/EN 60204.  In addition the G20 is also ideal for AC-applications with high short circuit fault levels, as well as electronic circuitry with low current and voltages.

Of course the G20 can also be combined with many optional extras from the Kraus & Naimer product line.

 * Self-cleaning and vibration resistant knife contacts

* Compact design

* High DC switching capacity

* Highest contact reliability (better than any H-bridge contact system)

* High short circuit withstand capability

* Finger-proof terminals (IP20) even if jumper links are used

* Terminal extensions (accessory item) for ring type cable lugs (max. width 6mm) and quick connect lugs will be made available

* Heat resistant contact system according to standard EN 12101-3

G20 – with normal latching
G20S – with snap-action latching

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A growing requirement for DC switch disconnectors for solar photovoltaic (PV) power supply systems has motivated Kraus & Naimer to introduce a brand new range of disconnectors specifically designed for this particular DC application.

With rated operational currents from 16 amps to 64 amps and voltages from 450 to 800 using a utilization category of DC-22A, a solution for most isolator applications within the solar photovoltaic market can be found.

Available in a totally insulated enclosure with the option of a red/yellow or grey /black padlockable handle and with a degree of protection to IP 66/67 they can be installed in the most arduous of environments.

To complement this series a complete range of AC switch disconnectors is also available in totally insulated enclosures, this enables the contractor to obtain his switch disconnector requirements for the entire installation from one source. 

A new up to date catalogue giving part numbers and technical details is available on request.

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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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