High-performance, three-pole moulded case circuit breaker with thermomagnetic release, suitable for transformer, generator, and installation protection.
Product ModelA3N 400 MF 250-3000 3p F F
Material Number1SDA076728R1
Product ID83116
Stock on Request
Last updated: 8/29/2026
Key Features
1
Feature1. Robust Short-Circuit Breaking Capacity The ABB A3N 400 MF 250-3000 3p F F boasts impressive short-circuit breaking capacities, ensuring reliable operation under demanding conditions. It can handle up to 42.5 kA at 240 V AC and 18 kA at 380, 415, and 440 V AC.
2
Feature2. Thermomagnetic Release Equipped with a thermomagnetic release (TMF), this circuit breaker provides a reliable and efficient mechanism for interrupting short circuits. The TMF ensures quick and safe operation, minimizing downtime and risk to the system.
3
Feature3. High Current Rating Designed to handle high currents, the ABB A3N 400 MF 250-3000 3p F F supports a main circuit rating of 400 A. This makes it suitable for applications requiring significant power handling, such as transformers and generators.
4
Feature4. Reliable Operation With a rated operational voltage of 550 V AC and 250 V DC, this circuit breaker operates reliably across a wide range of voltages. Its durable design ensures consistent performance over time, making it a trusted choice for critical applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Environmental Information
1SDL000185R001 9AKK108467A6707
Product Net Width
139.5 mm
Product Net Height
205 mm
Product Net Depth / Length
103.5 mm
Product Net Weight
4.75 kg
Product Main Type
SACE FORMULA DSA
5
Feature5. Compliance with International Standards The ABB A3N 400 MF 250-3000 3p F F meets international standards for safety and performance, including IEC compliance. This ensures that the product adheres to rigorous testing and certification protocols, providing peace of mind for users.
Product Name
Moulded Case Circuit Breaker
Product Type
Automatic Circuit Breaker
Version
F
Electrical Durability
2000 cycle
Mechanical Durability
5000 cycle
Number of Poles
3P
Rated Current (In)
Main Circuit 250 A
Rated Impulse Withstand Voltage (Uimp)
6 kV
Rated Insulation Voltage (Ui)
690 V
Rated Operational Voltage
550 V AC 250 V DC
Rated Service Short-Circuit Breaking Capacity (Ics)
(240 V AC) 42.5 kA (380 V AC) 18 kA (415 V AC) 18 kA (440 V AC) 18 kA (480 V AC) 12.5 kA (500 V AC) 10 kA (250 V DC) 2 Poles in Series 18 kA
