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Switch Disconnectors

Switch Disconnectors provide the means to safely disconnect an item of electrical equipment from the supply. Primarily designed to provide a means of local isolation when an elecrical item may need maintenance or repair, a Switch Disconnector has to comply with the following minimum requirements:-

  • Provide an effective clearance between the supply and the load appropriate to the voltage applied.
  • Provide a means of locking in the 'Off' position. (Padlocking)
  • Provide a true indication of the contact state.
  • Provide a safe disconnection from the supply even under fault conditions.

All of Craig & Derricott's Switch disconnectors meet, and often exceed, the above requirements making each, the product of choice in today's market.

 

The 'i-switch' range provides the user with the widest choice ever from Craig & Derricott. Enclosed products with protection to IP41, IP65 or IP66 are available in ratings 20A - 1000A, and for the equipment builder 'i-switch' now includes a complete range of load break interiors and accessories 16A - 1250A.


Moulded Plastic

Switchgear housed in moulded enclosures provides the basis for most industrial applications, and the added benefits offered by the 'i-switch' range provide the user with a wealth of opportunities when selecting the correct item for a specific application. Enclosure sizes 1 & 2 achieve IP66 sealing and sizes 3 & 4  IP65. Good sealing is a feature of the 'i-switch' range as is the ...

Die-Cast

  The die-cast enclosed family of switch disconnectors provides the user with a product that will withstand a good deal of abuse. With sealing to IP66 these products can safely be placed in environments where resistance to impacts, moisture and dust/dirt are a concern. The internal switches are all base mounted and of the latest design with approvals to many international standards. A wide ...

Flush mounting

Craig and Derricott have been manufacturing flush mounting isolators for more than 20 years, and in that time the design has been carefully modified to give features that installers, and end users, really need. The assembly consists of a galvanised back box (c/w knockouts) and stainless steel fascia plate which carries the isolating switch and lockable handle. The fascia plate now comes in an ...

Mild Steel

Switchgear housed in mild steel enclosures provides the user with a robust and cost effective assembly, and the added benefits offered by the 'i-switch' range provide the user with a wealth of opportunities when selecting the correct item for a specific application. Sealing to IP66 is a standard feature, as is the ability to add a selection of auxiliary blocks providing additional contacts and ...

Stainless Steel

Switchgear housed in stainless steel enclosures provides the user with an assembly that can be installed in the very harshest of environments. Outdoor in unprotected positions, or indoor and subject to severe hygiene cleansing routines, the stainless steel i-switch range offers the ideal solution. Sealing to IP66 is a standard feature on the screwed lid items (20A-63A) and IP65 on the hinged ...

Isolator Accessories

Hinged Lid Enclosures

The 'Hinged Lid' items in the i-switch family of products include:- IP41 assemblies for general industrial applications. IP65 sealed versions for use in more difficult environments. Removeable top & bottom gland plates Up to 1000A rating Sheet steel & stainless steel enclosures Sheet steel items finished Light grey (RAL7035). Also available in Red (RAL3020) Contact our Sales ...

Flagged

A range of hinged lid Switch-Disconnectors with Flag Indicators (32A - 630A).   The provision of a Flag Indicator driven off the main operating shaft viewed through a window in the enclosure lid provides the user with confirmation of the isolating switch contact state.   Offered in both Switch-Disconnector & Fuse Combination Unit assemblies with a choice of sheet steel or ...

Fire Rated

Fire Rated Isolators

Craig & Derricott has been producing isolating devices for more than 20 years. Combining our switching expertise with the specific requirements of the ventilation industry has led to the development of the 'High Temperature' range of switch disconnectors. Excellent switching characteristics with high temperature environment contact stability makes this the ideal product range.   The ...

LUL Section 12 products

Underground areas covered by 'Section 12' regulations is an area we have a specialist reputation. For these areas we have designed a complete range of isolation equipment.  We have a variety of switch disconnectors (25A - 400A) in die-cast aluminium, sheet steel or stainless steel, all specifically designed to meet the underground regulations in terms of materials and paint finishes (LU ...

PV switch disconnectors

A range of Disconnectors specifically designed to meet the unique requirements of Solar Panel technology.   The interconnecting of photovoltaic cells can result in many variations of generated voltage and current rating and the options below cover a wide range of both parameters. The disconnectors are designed to be placed between the array and the inverter to safely isolate the ...

ATEX (Exd) Zones 1&2

A range of Switch Disconnectors housed in heavy duty cast enclosures - ATEX certified for use in Cat II, Zones 1&2 environments.   Certifications and Approvals             • Certification Code             Ex d II 2 GD IIB T4, T5 or T6 (Contents dependent) ...

ATEX (Exe) Zones 1&2

Craig & Derricott has been associated with the design and manufacture of Ex products for more than 30 years.   The current product range has been developed to meet the technical requirements of todays market and a great deal of the design consideration has been given to bringing a quality product to the market at a competitive price.   General Description The 'EXZ1' range of ...

ATEX Zone 22

'ATEX' Zone 22 (category 3D) non-conductive dust In the UK from July 2006 the onus was placed upon companies to ensure that all equipment within their organisations is suitable for the environment in which it is being used. This was aimed primarily at areas where there may be a possibility of a combustible atmosphere being present, even for short periods i.e. less than 10 hours/year.   ...

ISDC Compact Panel Isolators

Craig & Derricott can provide the panel builder with a robust range of load break isolators which are known for their simple installation in applications such as power distribution boards.   The compact design also suits OEM's and stand alone enclosure installations.   A range of accessories extends the versatility.   Range:-  25A - 200A

ISD Panel Isolators

Craig & Derricott can provide the panel builder with a robust range of load break isolators which are known for their simple installation in applications such as power distribution boards.   The compact design also suits OEM's and stand alone enclosure installations.   A range of accessories extends the versatility.   Range:-  100A - 1250A