Technical Parameters
Parameter Specification
Product Name ABB E2N 2000 A Air Circuit Breaker
Product Type Low‑Voltage Air Circuit Breaker (ACB)
Series / Family Emax 2 – E2N
Rated Current (I<sub>n</sub>) 2000 A
Rated Operational Voltage (U<sub>e</sub>) Up to 690 V AC
Rated Insulation Voltage (U<sub>i</sub>) 1000 V
Rated Impulse Withstand Voltage (U<sub>imp</sub>) 12 kV
Rated Short‑Circuit Breaking Capacity (I<sub>cu</sub>) Typically ~65–66 kA at 400 V AC
Rated Short‑Time Withstand Current (I<sub>cw</sub>) ~66 kA for 1 s (typical variant)
Rated Uninterrupted Current (I<sub>u</sub>) 2000 A
Number of Poles 3P or 4P
Protection Releases Overcurrent/short‑circuit trip units (e.g., Ekip Dip, PR122/P, PR123/P‑LSIG, etc.)
Adjustable Protection Overload, short‑circuit, earth‑fault (depending on release type)
Mounting Type Fixed or Withdrawable (model dependent)
Auxiliary Contacts Yes (varies by configuration)
Control / Indication Breaker position and trip indication
Standards Compliance IEC low‑voltage circuit breaker standards
Typical Use Protection and switching in electrical distribution systems
The ABB E2N 2000 A is a low‑voltage air circuit breaker (ACB) from ABB’s Emax 2 E2N series, designed for electrical distribution and protection in industrial, commercial, and utility power systems. This breaker supports a continuous rated current of 2000 A and is available in 3‑pole (3P) and 4‑pole (4P) configurations.