The M39019/02-219 is a one-pole, magnetic, low-power circuit breaker designed for reliable overcurrent protection in demanding environments. This device has a current rating of 2.0 amps and features a standard 'B' time delay curve. It is rated for a maximum voltage of 50 V DC or 240 V AC at both 60 Hz and 400 Hz. The breaker exhibits a maximum impedance of 0.40 ohms at DC and 60 Hz, increasing to 0.50 ohms at 400 Hz, and is designed to handle high inrush currents. As a sealed, trip-free component compliant with MIL-PRF-39019/2H, it is suitable for military and aerospace applications where robust and reliable circuit protection is critical.