I'm looking at this solenoid to use as a battery disconnect (theft deterrent), they rate it for 110 amps continuous ("carry only") and 25 amps make and 25 amps break. I want it to be continuous, but does 25 amps make/break mean the load on it when switching it on and off can only be 25, and once its activated it can go up to 110? Is this just to prevent a 110 amp arc when switching or what?

 

I believe there talking about how much current it takes to engage/dis-engage the relay/solenid. The Solenoid will draw 25 amps of current when it is engaged... atleast that's what I think...

Look on Parts Express.com I believe and they have a 200 amp continous that only takes an amp to trigger. I've been running it for about 3 years now for my stereo and it works great. They have smaller ones as well, but I always oversize things like that.

 

I agree, I think the maximum amps the solenoid can handle is 110 amps. The solenoid draws 25 amps when it activates.

 

25 amps make/break is the max amperage it can disconnect under load. If you try to break the circuit with a load of 30A on the switch, the switch will arc internally and the circuit will stay closed.

110 amps is the maximum amperage it can take when closed.

Basically you should be fine unless you have a huge load on the battery when you are switching this solenoid.