Deadman Switch for Electric Trolling Motor?

I am installing a trolling motor (Minn Kota Endura 30) to my Fishing
Kayak, and for safety would like to install a "Deadman Switch". Does
anyone have any suggestions with what type of switch (current rating)
I should use and where in the circuit I should install it (main 12v
supply or return, one of the other 4 wires that are connected to the
speed switch)? I would think the easiest would be the supply, but this
could mean a very heafty switch to handle the amps, or possibly use
one of the speed control wires (that have a smaller gage wire)? The
concern I have with the smaller wires from the speed control is what
happens when that circuit is disconnected (due to the deadman switch/
lanyard gets pulled/activated by accident) will it burn up the rest of
the control circuit? I bought a Sierra Emergency cut-off switch but
based on the size of the terminals it does not look like it can handle
a lot of DC current (it was meant to deactivate the low current
ignition circuit in a conventional Outboard motor).

"jecmec" wrote in message
...
I am installing a trolling motor (Minn Kota Endura 30) to my Fishing
Kayak, and for safety would like to install a "Deadman Switch". Does
anyone have any suggestions with what type of switch (current rating)
I should use and where in the circuit I should install it (main 12v
supply or return, one of the other 4 wires that are connected to the
speed switch)? I would think the easiest would be the supply, but this
could mean a very heafty switch to handle the amps, or possibly use
one of the speed control wires (that have a smaller gage wire)? The
concern I have with the smaller wires from the speed control is what
happens when that circuit is disconnected (due to the deadman switch/
lanyard gets pulled/activated by accident) will it burn up the rest of
the control circuit? I bought a Sierra Emergency cut-off switch but
based on the size of the terminals it does not look like it can handle
a lot of DC current (it was meant to deactivate the low current
ignition circuit in a conventional Outboard motor).

Could use the same deadman switch boat racers used for years. A heavy Buss
Fuse bayonet holder and a brass rod the same size as the fuse. Lanyard
attached to the brass rod.