In the past I have installed type C MCBs on circuits where large motors
would normally trip standard Type B MCBs during start up. Eg in
workshops and garages belonging to woodworkers.
I recently went to get one to fit a Volex CU and see that Volex and a
few other suppliers are only supplying Type C overload protection in
Trouble it Type C MCBs are about £4-5 and RCBOs are nearer £30!
Anyone know why Type C breakers are disappearing? Is it to do with a
regulation change? if so why are other makes still supplying Type C MCBs?
Anyone from the trade know what is going on please?
Secondary question which other makes of MCBs fit Volex CUs
Type C are normally used in commercial/industrial situations,
so you'll have more luck if you pick a CU which is also used
in commercial/industrial situations.
For home use, combining a Type C with an RCD does make some
sense - it removes the more stringent earth fault fault loop
impedance which would otherwise be required for a Type C,
and it may be that this is something which is less likely to
be checked (or even understood) by domestic electricians.
[email address is not usable -- followup in the newsgroup]
I notice that in the TLC catalogue that it mentions some design change to
Wlylex TP boards and compatability with some MCBs.
Maybe a call to Electrium (they make both Wylex and Volex) may be in order.
Tel 01543 455000 and ask to speak to the technical department.
They will not bite!
On Sun, 14 Mar 2010 16:56:23 +0000, Bob Minchin wrote:
Look here for good prices:
Using Ubuntu Linux
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