It carries an 80 A rated current and a 30 mA residual trip threshold, Type A waveform detection — meaning it catches pulsating DC fault currents as well as standard AC, which is the typical requirement for circuits feeding single-phase rectified loads like switched-mode power supplies or variable-speed drives. Rated short-circuit current withstand is 10 kA, and the unit is instantaneous (no short-time delay), so it trips immediately on residual fault — standard for personnel protection in final subcircuits.
Mounts on DIN rail (REG profile), occupies 4 width units (approx 72 mm). Installation depth is 55 mm. Any mounting position is permitted. Tightening torque is 2.5 to 3 N·m with screw-type terminals. Supply connection can be top or bottom — no polarity restriction on this RCCB design.
The unit is silicone-free, which matters for applications where silicone outgassing can contaminate contacts or optical surfaces. Overvoltage category III, pollution degree typical for distribution boards. The design family is 5SM1.