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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

A range of moulded plastic enclosed isolation equipment with sealing up to IP66. All units have a padlockable handle which allow for the insertion of up to three padlocks in the ‘Off’ position thus preventing the isolator being switched to the ‘On’ position. The units have the ability to add a selection of auxiliary blocks providing additional contacts and a choice of ...

Die-Cast

A range of die-cast aluminium enclosed isolation equipment with sealing up to IP66 available in Light Grey (RAL 7035) or Traffic Red (RAL3020) powder coated finish. These units can be placed in environments where resistance to impacts, moisture and dust/dirt are a concern. All units have a padlockable handle which allows for the insertion of up to three padlocks in the ‘Off’ ...

Flush mounting

A range of flush mounting isolation equipment ranging 20A to 63A, supplied with a sheet steel back box and stainless steel fascia plate sealed up to IP65. All units are supplied with a handle manufactured from a material suitable to withstand cleaning products containing sodium hydroxide. Suitable for installation in kitchens, laboratories, food processing areas, hospitals and many other areas. ...

Mild Steel

A range of sheet steel enclosed isolation equipment with sealing to IP66, providing the user with a robust and cost effective assembly. Each unit is supplied with a polyester powder coated finish in Light Grey (RAL 7035) suitable for indoor and outdoor installation in a non-saline environment*.   External mounting feet in stainless steel are offered as an accessory sized to match each ...

Stainless Steel

A range of isolation equipment housed in Grade 304 stainless steel enclosures sealing to IP66. All units have a padlockable handle which allow for the insertion of up to three padlocks in the ‘Off’ position thus preventing the isolator being switched to the ‘On’ position. All units are interlocked in the ON position preventing the lid from being removed. As a standard ...

Isolator Accessories

Hinged Lid Enclosures

A range of ‘hinged door’ Light Grey (RAL 7035) powder coated sheet steel isolation equipment. Supplied in IP65 generously sized boxes which helps to avoid the need for extension boxes. All enclosures have the switches mounted on a removable galvanised chassis plate. All units are provided with removable top & bottom gland plates.   The range has a padlockable handle which ...

Flagged

The Flag Indicator is viewed through a 4mm thick polycarbonate window in the enclosure door providing the user with confirmation of the switch contact state. All units are sealed to IP65 and are supplied with 2 C/O auxiliary blocks wired down to terminals and come standard with the switching element mounted on a removable internal 2mm galvanised steel chassis plate.   Enclosures can be ...

Fire Rated

Craig & Derricott’s Fire Rated products range from 20A to 800A, for F200, F300 and F400 environments. Units are supplied in either IP65/IP66 die-cast aluminium or IP65 sheet steel enclosures with a Traffic Red (RAL 3020) powder coat finish.   When choosing a switch disconnector enclosure, care must be taken to select the most suitable material taking into account the location, ...

LUL Section 12 products

Following the London Kings Cross fire of 1987, the resulting Fennell enquiry prompted the introduction of additional fire precautions for ‘Sub-surface Railway Stations’. These additional requirements were introduced under section 12 of the Fire Precautions Act 1971, and since then have been known simply as Section 12 regs. These regulations have been revoked and partly replaced with:- ...

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

More information coming soon....

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