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Not sure I fully agree with Wiring Matters > Years > 2025 > 107 - September 2025

Sergio Fernandez

electrical.theiet.org/.../

Personally I think Rotary Isolator would be far better than 20 amp Double-pole switch shown Fig 2 as this allows for isolation and LockOff/LockOut

The cost of the Rotary Isolator is still quite low see URL below.  (Other brands and other Wholesalers are available).


www.superlecdirect.com/.../



As always please be polite and respectful in this purely academic debate.





Come on everybody let’s help inspire the future

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  • Sergio Fernandez said:
    Personally I think Rotary Isolator would be far better than 20 amp Double-pole switch shown Fig 2 as this allows for isolation and LockOff/LockOut

    Should we also replace light switches with rotary isolators?  I have replaced many lamps over the years, but have never yet needed to change the immersion heater.

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  • Sergio Fernandez said:
    Personally I think Rotary Isolator would be far better than 20 amp Double-pole switch shown Fig 2 as this allows for isolation and LockOff/LockOut

    Should we also replace light switches with rotary isolators?  I have replaced many lamps over the years, but have never yet needed to change the immersion heater.

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