ABB S804PV-SP25 high-performance 4-pole circuit breaker for photovoltaic (DC) systems with characteristic B, cage terminal and a rated current of 25 A. It is a current-limiting device with a maximum breaking capacity of 5 kA at 1500 V. It can be used for voltages up to 1500 V DC. It has two tripping mechanisms, the thermal tripping mechanism for overload protection and the electromechanical tripping mechanism for short-circuit protection.