Immersion fuse or MCB?
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 more information
You may reply to this message here.
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 more information
You may reply to this message here.