Product category:
Batteries, chargers and circuit protection
News Release from: Moeller Electric | Subject: Switch-disconnectors
Edited by the Engineeringtalk Editorial
Team on 07 December 2000
Knockout for enclosed
switch-disconnectors
Users of Moeller Electric's popular switch-disconnectors will be pleased to learn that hard knockouts have been reintroduced to the smaller models in the insulated enclosure line-up
Users of Moeller Electric's popular switch-disconnectors will be pleased to learn that hard knockouts have been reintroduced to the smaller models in the insulated enclosure line-up thus now giving them a choice of hard or soft metric knockouts to suit their individual application Moeller disconnectors are ideal for a wide range of tasks including power distribution, automation and process control
This article was originally published on Engineeringtalk on 18 Feb 2000 at 8.00am (UK)
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Control switches now in surface-mount enclosures
Moeller T and P ranges are now available in new totally insulated and easy to install surface mount enclosures.
Device avoids redundant contactors
CMDs monitor the state of the contactor's main contacts and compare this with the voltage applied to the coil.
Supplied in a choice of insulated, steel or stainless steel enclosures the units' high IP rating, up to IP65, make them suitable for even the most demanding environments.
The 400/415V-rated disconnector range has been greatly extended offering users a wider choice of current ratings in a range of physical sizes.
Current ratings range from 20A to 100A, power from 4kW to 37kW, and all three enclosure types are offered as either 3-pole or 6-pole variants.
Further reading
Switch range suits safety applications
Moeller Electric T rotary switches and P switch disconnectors are suitable for use as main, maintenance and emergency-stop switches that can be locked in the off position with up to three padlocks.
Switchgear meets new building regulations
Metering can also be easily retrofitted to existing installations, avoiding the need for extensive refurbishment when systems are upgraded to meet Part L requirements.
Moeller has over 30% of the enclosed disconnector market and by far its most popular types are the insulated units.
These employ the new CI-K insulated enclosure which, made from halogen-free glass-fibre reinforced polycarbonate, provides a high level of robustness and superb chemical resistance.
Total insulation ensures optimum protection for the user and sealed lugs can be used to protect the unit against unauthorised opening.
Until now the switch connectors housed in the two smaller CI-K units, measuring 120 x 80 x 95mm and 160 x 100 x 145, have been available only with the unique push-through cable entry membranes (soft knockouts).
Units housed in the three larger sizes of enclosure have been offered with hard knockouts.
From today all sizes of CI-K enclosure can now be supplied with hard knockouts.
Soft knockouts remain optionally available on the two smaller sizes.
In addition to the hard and soft knockout option, Moeller has also introduced hard plastic 'plugs' for use with the soft-knockout units.
These can be fitted above the soft membranes and flush with the enclosure case, preventing fingers, screwdrivers and the like, from being inserted into the enclosure via unused cable entry ports.
The plugs provide a very tight seal, maintaining the enclosure's IP65 rating, and once fitted they cannot be removed from the outside - they can only be 'pushed out' from within.
Rubber mounting pads on the rear of the CI-K enclosure stop it slipping making it easier to mount on a wall.
In addition to the top and bottom cable entries, there are two rear cable entries giving six in all.
A novel design feature is the inclusion of moulded eyelets on the top of the base and cover of the enclosure.
Passing tie wraps through these eyelets effectively forms a temporary hinge for the cover allowing maintenance engineers access to the contents of the enclosure while keeping the cover firmly attached to the base.
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