Siemens 2P 35A 120V Plug-in type breakers are the most economical breakers on the market. They are designed for residential applications or light office. If you have a problem with one, it is recommended to change out the breaker and install a new one. Available in 1 Pole, 2 Pole and 3 Pole and even twins or duplex type or two in on unit. 240 VAC, 30 Ampere At 40 Deg C, 3 Pole, Interrupting Rating 10000 Ampere, Rated as HACR Application Air Conditioning, Heating, Refrigeration, Distribution. Handle locks, pad lock or dog locks are commonly used on these breakers to either prevent turning on or turning off by accident. Shunt trips are factory installed only and must be ordered that way. No field installed shunts. 2 Pole breakers are made up to 125A, but three pole breaker only to 100A. Why, we don't know, but that's the fact. Need help, just call us 800-3321-8998 Toll-Free. We like hearing from you.