AP12-1R-65-153 is a two-pole magnetic circuit protector designed for DC circuit applications with a 15-ampere nominal current rating and short time delay characteristics. This fully sealed hydraulic magnetic protector combines power switching with accurate, reliable circuit protection featuring inverse time delays and trip-free operation. The unit features a DC series resistance of 0.006 ohms and operates with trip times ranging from 9 to 60 seconds at 125% rated current, 1.15 to 7 seconds at 200% rated current, and 0.110 to 1 second at 400% rated current. The protector is mounted with a toggle handle and includes auxiliary switch capability rated at 3.0 amps at 120 VAC/50 VDC, weighing approximately 1.8 ounces (49 grams) per pole. This configuration is ideal for applications requiring precise overcurrent protection with minimal temperature sensitivity and simultaneous power disconnection capability.