Siemens Betagard Miniature Circuit Breaker (MCB), 3-Pole
– 5SP4391-7RC
The Siemens 5SP4391-7RC is a Betagard SENTRON
series miniature circuit breaker (MCB) designed for reliable protection of low-voltage
electrical distribution systems against overload and short-circuit
faults. It is widely used in industrial panels, commercial
installations, infrastructure projects, and OEM electrical systems where
high current capacity and dependable switching performance are required.
This device comes in a 3-pole configuration, making
it suitable for three-phase distribution systems. It features a C-curve
tripping characteristic, which is ideal for circuits with moderate inrush
currents such as feeder lines, distribution boards, lighting systems, and
small inductive loads.
With a rated current of 100A and a breaking
capacity of 10kA at 400V AC, it ensures strong short-circuit protection and
stable operation in demanding electrical environments.
Key Features
|
Parameter |
Specification |
|
Product Model |
5SP4391-7RC |
|
Brand |
Siemens |
|
Series |
Betagard / SENTRON 5SP4 |
|
Type |
Miniature Circuit Breaker (MCB) |
|
Number of Poles |
3 Pole |
|
Rated Current |
100 A |
|
Tripping Characteristic |
C Curve |
|
Rated Voltage |
400 V AC |
|
Breaking Capacity |
10 kA |
|
Frequency |
50/60 Hz |
|
Mounting Type |
DIN Rail |
|
Protection Type |
Thermal magnetic |
|
Standards |
IEC 60898 |
|
Mechanical Life |
~10,000 operating cycles |
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