Technical Parameters
Parameter Specification
Series ABB System Pro M compact® AF
Product Type 2-Pole MCB with Z-Curve and Auxiliary Contact
Order Code AF26Z-30-00-21
Number of Poles 2-Pole (2P)
Rated Current (In) 2 A (The "30" in the code corresponds to a 2A rating in this series' coding system).
Tripping Characteristic Z-Curve (Selective)
Rated Operational Voltage (Ue) 240/415V AC
Rated Insulation Voltage (Ui) 500V AC
Rated Impulse Withstand Voltage (Uimp) 6 kV
Breaking Capacity (Icn) 10 kA at 400V AC
Auxiliary Power Supply 24-60V AC/DC (for internal electronics)
Auxiliary Contact 1 NO (Normally Open)
Auxiliary Contact Rating Typically 250V AC, 5A
Rated Frequency 50/60 Hz
Terminals Cage clamp terminals for conductors (main): 1 - 25 mm² / (auxiliary): 0.2 - 2.5 mm²
Terminal Torque 2.0 N·m (main), 0.5 N·m (auxiliary)
Mounting DIN Rail (35mm)
Electrical Durability ≥ 10,000 operations at In
Mechanical Durability ≥ 20,000 operations
Standards Compliance IEC/EN 60947-1, IEC/EN 60947-2
Ambient Temperature -25°C to +60°C (Operation)
Trip Time Instantaneous trip range: Approx. 4A to 6A (2-3 x In) within milliseconds.
The ABB AF26Z-30-00-21 is a highly sensitive two-pole (2P) Miniature Circuit Breaker (MCB) featuring a Z-characteristic tripping curve. It belongs to the System Pro M compact® AF series, designed for advanced protection in control and automation systems.