It combines overload, short-circuit, and earth-leakage protection in one package — meaning a single device covers the branch circuit protection and ground-fault detection, saving a panel row compared to a breaker plus separate GFCI block. Breaking capacity is 20 kA Icu at 440 V AC (50/60 Hz) per IEC 60947-2, with higher ratings at lower voltages: 25 kA at 380–415 V and 85 kA at 220–240 V. Mounts fixed to a backplate (not DIN rail), with front-front connections — both line and load terminations on the front face. Connection pitch is 35 mm.
Compliance documentation covers IEC 60947-2, GB/T 14048.2, and JIS C8201-2-2. The breaker carries an IP20 finger-safe front and IK07 impact resistance per EN 50102.
Category A utilization means it's not intended for motor starting duty where high inrush currents are routine — it's a distribution breaker, not a motor circuit protector. Mechanical durability is 10,000 cycles — fine for a main or feeder breaker that cycles a few times a year. Not the part for a frequent-switching application like a welding press or a capacitor bank that cycles daily. Dimensions: 105 mm wide, 165 mm high, 68 mm deep. That depth (68 mm) is the body depth behind the panel — important when fitting into a shallow enclosure or a backpanel with limited clearance to the rear wall.