It is short-time delayed (short-term delayed per the design), meaning it tolerates brief surge currents up to 3 kA without nuisance tripping — useful on circuits with motor inrush or capacitor banks. The 10 kA short-circuit current rating (SCCR) at 230/400 V AC, 50/60 Hz means it safely interrupts fault currents up to that level without cascading upstream. Type A detection covers sinusoidal AC and pulsating DC residual currents, which is the standard requirement for most modern electronic loads like VFDs, switching power supplies, and LED drivers.
Snaps onto standard DIN rail (REG per the spec). Depth is 70 mm, height 90 mm. Mounting position is any orientation, so it fits vertical or horizontal busbar layouts.
Thermal performance and derating
The I²t let-through is 58,000 A²·s, with a peak let-through current of 5,200 A. Silicon-free construction, which matters for certain coating and potting processes in sensitive electronics environments.