This FPE NA140 Stab-lok Circuit Breaker is a reliable and durable option for your electrical equipment needs. With a maximum amperage of 40A and an on/off operation method, this main breaker is designed to protect your circuit from overloads and short circuits. The plastic material ensures long-lasting performance and stability. This single pole breaker has two positions and one throw, making it a versatile choice for your circuit needs. Its compatibility with AC current type and 1 phase make it a suitable option for a wide range of electrical applications. Whether you're looking for a circuit breaker for your business or industrial needs, this FPE NA140 Stab-lok Circuit Breaker is a great choice.