Discuss Single pole rotary isolator in the UK Electrical Forum area at ElectriciansForums.net
Purchased.Most certainly NOT a single ! Is this a rental or you have purchased ?
a high current appliance should isolate both live and neutral
Thanks for your reply, I would imagine the rotary switch would be used for maintenance as the only other way to isolate the water heater would be from the 50a MCB at the board. Perhaps I am wrong and it is just used as a control switch.The current is unimportant, as you can get just as bad a shock from a 6A circuit as a 60A. On a domestic single-phase circuit, an isolator (which you would turn off to enable maintenance, for example) is expected to break all conductors with a 3mm contact separation. A control switch need only break the line, so is it possible that this was the intended purpose of your rotary switch, and the means of isolation (if required) is something else?
Never break the cpc!!!!!Thanks for your reply, I would imagine the rotary switch would be used for maintenance as the only other way to isolate the water heater would be from the 50a MCB at the board. Perhaps I am wrong and it is just used as a control switch.
So for use as an isolator for maintenance it would need to break live, neutral and earth?
D/P is fineNever break the cpc!!!!!
Ive never seen a single pole before been used domestically ?I'd be surprised if it is a Single pole rotary isolator, more likely a Double pole but only one pole used so shouldn't be too hard to rectify.
Any pictures of the internals?
On a domestic single-phase circuit, an isolator (which you would turn off to enable maintenance, for example) is expected to break all conductors with a 3mm contact separation.
I'd be surprised if it is a Single pole rotary isolator, more likely a Double pole but only one pole used so shouldn't be too hard to rectify.
Any pictures of the internals?
If you look up the part code it actually does appear to be a single pole switch disconnector.I don't think it's that the switch isn't DP, more that the neutral is just bypassing the switch.
If you look up the part code it actually does appear to be a single pole switch disconnector.
It looks like they just "add" in another screw terminal for the double pole version !If you look up the part code it actually does appear to be a single pole switch disconnector.
The way I read 464.1 and 461.2 I'd say, if a TNCS or TNS supply, the requirement is only for single pole isolation.
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