At DC, the 15 kA rating at 60 V covers control-circuit and solar-combiner applications; the 72 V max DC operating voltage is the ceiling. The UL 1077 supplementary-protector rating of 5 kA is what governs in a North American listed panel — that 5 kA is the number the AHJ will check. The 1P+N design switches both phase and neutral, with the neutral pole switching but not protecting — this is the configuration for single-phase final subcircuits where you want the neutral opened with the phase for isolation.
Quick assembly system — snaps on without tools, clips off with a screwdriver push. Mounting position any. Sealable for revenue-meter applications.
Rated for -40 °C to +75 °C ambient. Halogen-free and silicon-free — required for certain rail, marine, and semiconductor fab specs. Vibration resistance per IEC 60068-2-6: ±1 mm at 5–25 Hz, 50 m/s² at 25–150 Hz. Mechanical life 10 000 operating cycles typical. Supplementary devices can be installed — shunt trip, auxiliary contact, alarm switch.