5SP4491-7

The 5SP4491-7 is a Siemens SENTRON 5SP4 high-current miniature circuit breaker. It is a four-pole circuit breaker with a rated current of 100A, C-curve thermal-magnetic trip, a rated voltage of 400V AC, a breaking capacity of 10kA, and a width of 108mm. It is suitable for power distribution protection in three-phase four-wire systems, including neutral line disconnection.

Share To
Product Positioning

5SP4491-7 is the four-pole 100A version of the 5SP4 series. The simultaneous opening and closing of all four poles can isolate the neutral line together. It is suitable for three-phase four-wire power distribution, main switches of distribution panels that require disconnection of the neutral line, and power distribution in buildings and factories with mixed loads of power and lighting.

Core Product Advantages and Features
Four poles containing neutral line cut
The four-pole synchronous switch can simultaneously disconnect the three phases and the neutral line, ensuring complete circuit isolation during maintenance.
100A rated current
With a rated current of 100A, it meets the high current requirements of rail-mounted circuit breakers and can be used as a main switch in a distribution panel or for high-current branch circuits.
C-curve thermomagnetic jump
The C-curve balances overload protection and startup inrush current tolerance, making it suitable for both power and general mixed loads.
10kA breaking capacity
Rated voltage 400V AC, breaking capacity 10kA, with CE, VDE and other certifications, suitable for industrial and commercial power distribution.
project Specification
series SENTRON 5SP4
Extreme number 4 poles
Rated current 100A
breakaway curve C
Rated voltage 400V AC
Breaking capacity 10kA
width 108mm
Terminal type Screw terminals