Blown dimmer switch 1G 2W

[eagle1]

Can anyone help: I have just blown my new dimmer: 400W 1G 2W after connecting it to a standard on/off switch for a 180W\\\'s of ceiling lighting.

I connected : red to "C" common; black to "L1" leaving L2 free; earth to earth on metal front plate.

Must be simple if you know how.

Mark

[Spark123]

How do you mean blown? Did it go bang or is it just work like an on/off switch? How many red and black wires in the switch? Have you been doing anything else to the circuit?

[eagle1]

By blown : smoke and burnt look !

One black, one red wire in standard existing switch

nothing else done to the circuit