The Square D FYB-14020-A I-Line Circuit Breaker is a reliable and durable electrical component designed for commercial and industrial applications. With a maximum amperage of 20A and a voltage rating of 251-300V, this Type FYB breaker features a single pole single throw (SPST) contact configuration for efficient operation. The black color and ABS/plastic material make it easy to install and compatible with various electrical systems. With a tripping characteristic of Type A and an on/off operation method, this circuit breaker from Square D is a trusted choice for ensuring safety and reliability in electrical circuits.