I am on a senior design team at school. We have designed a mechanical system that uses a DeWalt 20V drill motor to drive the system. It is powered by the stock lithium ion batteries. I need to implement a few limit switches. I think 4 will do the trick, two of them will be SPST and two will be SPDT. I ran some tests with an ammeter and found the drill is pulling 17 amps without a load. When loaded, there were a few 100 amp spikes. What limit switches can I use that will handle this sort of power? (I am assuming 20 V * 100 Amps = 2000 Watts) I need them to have a fairly small footprint. Is this even possible to accomplish? Thanks in advance for any help.
I have added a wire schematic, maybe this can help. It was a bit dicey how I measured the current. I pulled the battery out of the drill, and completed the connection with wire and an ammeter to get power to the drill from the battery which was laying on a table. It was crude, but the motor came on, and the ammeter spit out a reading.