Type CH Circuit Breaker Surge Protective Device, Two Pole, Plug-On Neutral Surge Protective Device, Short Circuit Rating: 10 kA, Interrupt Rating: 10 kAIC, Frequency Rating: 50/60 Hz, Surge Current: 18 kA, Maximum Continuous Operating Voltage: 150 V L-N, 300 V L-L Eaton’s Type 2 Complete Home Surge Protection (CHSP) products are UL 1449 3rd Edition Listed and provide the highest level of surge protection and safety. Type 2 surge products are permanently connected devices that are installed on the load side of the service entrance overcurrent protective device. This listing is for Each.