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FA4N 3200 EK2 LSI 4P FHR NST

FA4N 3200 EK2 LSI 4P FHR NST – ABB Circuit Breaker
Type: Molded Case Circuit Breaker (MCCB)
Function: Overcurrent & short-circuit protection

Key Features:

Rated Current: 3200A

Breaking Capacity: 65kA (at 400V AC)

Trip Unit: LSI (Adjustable protections)

4-Pole Design

Applications:

Main power distribution

Industrial switchboards

Certifications: IEC 60947-2, UL 489

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A4N 3200 EK2 LSI 4P FHR NST – Technical Specifications
General Information
Manufacturer: ABB

Model: FA4N 3200 EK2 LSI

Type: Molded Case Circuit Breaker (MCCB)

Application: Main circuit protection in industrial power distribution

Electrical Parameters
Rated Current (In): 3200A

Voltage Rating:

AC: 690V

DC: 250V

Breaking Capacity:

Icu (Ultimate): 65kA (at 400V AC)

Ics (Service): 65kA (at 400V AC)

Trip Unit: LSI

Protection Functions:

L (Long-time): 0.4–1 × In

S (Short-time): 1.5–10 × In

I (Instantaneous): 1.5–15 × In

Mechanical & Operational
Poles: 4P (3 phases + neutral)

Mounting: Fixed/Drawout (switchboard installation)

Terminals: Dual compression (up to 2×240mm² cables per pole)

Mechanical Life: 10,000 cycles

Environmental
Operating Temperature: -25°C to +70°C

Humidity: ≤95% RH (non-condensing)

Protection Class: IP40 (enclosure-dependent)

Special Features
FHR: High Fault Rating version

NST: Neutral Switching Technology (100% neutral protection)

Certifications
Standards: IEC/EN 60947-2, UL 489

Safety: IEC 60947-2 Annex M

Key Advantages:
✔ High breaking capacity for critical circuits
✔ Selective coordination with downstream devices
✔ Full neutral protection (NST technology)