Siemens 5SY4440-8

The Siemens 5SY4440-8 is a four-pole miniature circuit breaker designed to handle up to 40 amps and operate at voltages up to 480 V. With a breaking capacity of 10 kA and a compact 70 mm diameter, this device features a D curve trip characteristic, making it suitable for protecting circuits with moderate inrush currents. It serves as the updated replacement for the previous 5SY6440-8 model. This reliable circuit breaker is available through BSP Automation, offering a trusted solution for your industrial electrical protection needs.