Immersion fuse or MCB? Discussion ThreadImmersion fuse or MCB? Electrical Advice
An immersion heater 3kW, say off a final ring. A number of points.
Is is best have a 13A double pole FCU switch or a double pole 13A type C MCB?
A fuse is one-shot. If it blows the danger is eliminated until seen to. The MCB in a local enclosure doubles as switch but can be switched back on by the user.
Gradual current increase on a 13A fuse can cook a 2.5mm cable before a fuse blows. This can be a dangerous yet all legal. This is not such a problem with an MCB which will trip quicker.
Any views on this welcome.
Immersion fuse or MCB? for the original thread on Electricians Forums
An immersion heater 3kW, say off a final ring. A number of points.
Is is best have a 13A double pole FCU switch or a double pole 13A type C MCB?
A fuse is one-shot. If it blows the danger is eliminated until seen to. The MCB in a local enclosure doubles as switch but can be switched back on by the user.
Gradual current increase on a 13A fuse can cook a 2.5mm cable before a fuse blows. This can be a dangerous yet all legal. This is not such a problem with an MCB which will trip quicker.
Any views on this welcome.
Immersion fuse or MCB? for the original thread on Electricians Forums
