A9F77440

Schneider Electric A9F77440 — Miniature Circuit Breaker

Schneider Electric A9F77440 Miniature Circuit Breaker (MCB) Acti9 iC60N 4P 40A C-Curve. Ensure robust electrical protection with the Schneider Electric Acti9 iC60N Miniature Circuit Breaker, part number A9F77440. This high-performance DIN-rail MCB is engineered for final distribution circuits, offering reliable thermal-magnetic protection for both AC and DC networks. Featuring 4 poles with a rated current of 40A and a C-curve tripping characteristic, it effectively guards against overloads and short circuits. It boasts significant breaking capacities, including 10 kA Icu at 380-415 V AC (IEC/EN 60947-2) and 10 kA Icu at <= 250 V DC, alongside a 6000 A Icn at 400 V AC (IEC/EN 60898-1). Designed for versatile applications, it supports 50/60 Hz networks across a wide operational voltage range, including 220-240 V AC and 380-415 V AC, critical for infrastructure in Egypt and the Gulf. Its suitability for isolation, IP20 degree of protection, and operation in ambient temperatures from -35 to 70 °C make it ideal for demanding environments. This Schneider Electric MCB is a cornerstone for safety and continuity in industrial sectors such as cement, oil and gas, water treatment, food and beverage, textiles, and building services.

Details

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Specifications

Depth
78.5 mm
Width
72 mm
Height
85 mm
Standards
EN/IEC 60947-2; EN/IEC 60898-1
Curve code
C
Net weight
0.5 Kg
Network type
AC; DC
Mounting support
35 mm DIN rail
Breaking capacity
10 KA Icu at 380...415 V AC 50/60 Hz conforming to EN/IEC 60947-2; 6000 A Icn at 400 V AC 50/60 Hz conforming to EN/IEC 60898-1; 10 KA Icu at <= 250 V DC conforming to EN/IEC 60947-2
Network frequency
50/60 Hz
Poles description
4P
[In] rated current
40 A
Trip unit technology
Thermal-magnetic
Electrical durability
10000 Cycles
Mechanical durability
20000 Cycles
Connections - terminals
Single terminal (top or bottom) , for 1 cable(s) , 1…35 mm², rigid, copper; Single terminal (top or bottom) , for 1.0 cable(s) , 1…25 mm², flexible, copper
IP degree of protection
IP20 conforming to IEC 60529
Manufacturer part number
A9F77440
Number of protected poles
4
Suitability for isolation
Yes
[Ue] rated operational voltage
12...133 V AC 50/60 Hz; 220...240 V AC 50/60 Hz; 380...415 V AC 50/60 Hz; 440 V AC 50/60 Hz; <= 250 V DC
Ambient air temperature for operation
-35…70 °C

Product documentation

View manufacturer document (PDF)