On Monday, 20 April 2015 22:00:04 UTC+1, newshound wrote:
I think you mean in parallel (with the bell push). Still readily
available (Maplin, Farnell) but alas you can no longer get the reliable,
high capacity mercury ones from RS which the IRA used to use.


This apparently will switch a buzzer from a 9v battery

http://www.maplin.co.uk/p/non-mercury-tilt-switch-dp50e

A possible source might be the pendulum tilt switches used for heater safety cut-offs eg
http://www.4delonghi.co.uk/tilt-swit...t.pl?pid=97213

Float switches using microswitches and weights have high current capacity but lack finess in operating angles.

http://www.tritoncontrols.co.uk/asse...lagnew2008.pdf

Mercury switches still appear to be available; this supplier mentions ratings of associated connection leads up to 40 amp

http://www.russell-scientific.co.uk/...tches-21-c.asp

Owain