The Cutler Hammer FAZ-C4/1-NA-SP is a miniature circuit breaker designed for reliable protection. It features a Type C tripping curve, making it suitable for applications where higher inrush currents are expected. This single-pole breaker offers robust circuit protection..This is a single-pole miniature circuit breaker from Cutler Hammer, model FAZ-C4/1-NA-SP. It has a 4A current rating and a Type C tripping curve. The breaker is designed for screw terminal connections.