Technical Specifications
Parameter Specification
Part Number / Model 1SDA067049R1
Product Type Molded Case Circuit Breaker (MCCB)
Series / Family Tmax XT2N
Trip Unit / Release Type Magnetic only (MA / MF)
Number of Poles 3 poles (3P)
Rated Current (In) 20 A
Frame / Uninterrupted Current (Iu) 160 A
Adjustable Magnetic Trip Range (Ii / Im) 120 A … 280 A
Rated Operational Voltage (Ue) Up to 690 V AC / 500 V DC
Rated Insulation Voltage (Ui) 1000 V
Rated Impulse Withstand Voltage (Uimp) 8 kV
Rated Service Short‑Circuit Breaking Capacity (Ics) Up to 65 kA at lower AC voltages; 36 kA at 380–440 V AC; 10 kA at 690 V AC
Rated Ultimate Short‑Circuit Breaking Capacity (Icu) Same as Ics across rated voltages
Terminal Type Front bolt terminals
Connection Capacity Busbar/cable compatible (e.g., 32.5–100 mm²)
Mechanical Durability ~25,000 operations
Electrical Endurance ~8,000 operations
Standards Compliance IEC 60947‑2
Weight (approx.) ~1.1 kg
Dimensions (approx.) Width ~90 mm × Height ~130 mm × Depth ~82.5 mm
The ABB 1SDA067049R1 is a three‑pole molded case circuit breaker (MCCB) from ABB’s Tmax XT2N series featuring a magnetic only (MA/MF) release. It is designed for fixed installation with front terminals and provides reliable protection against short‑circuit and fault currents in low‑voltage power distribution systems. With a rated current of 20 A and a wide adjustable magnetic trip range, this circuit breaker is ideal for industrial and commercial electrical panel applications where dependable overcurrent interruption and coordination with other protection devices are required.