5SP4391-8
The 5SP4391-8 is a three-pole, 100A specification circuit with a D-curve design. It features a high magnetic tripping range and is suitable for circuit protection of transformers, capacitors, and other circuits with large starting surge currents.
Product Positioning
The 5SP4391-8 is a three-pole auxiliary protection circuit breaker from the Siemens SENTRON 5SP4 series, with a rated current of 100A and D-curve operating characteristics. It is specifically designed for circuits with high surge starting current.
Core Product Advantages and Features
Tri-polar design
3P pole configuration, suitable for overload and short circuit protection of three-phase power circuits.
D curve jump
The magnetic tripping action range is 10 to 20 times the rated current, suitable for high surge loads such as transformers and large motors.
Thermomagnetic composite protection
Combining thermal overload and magnetic instantaneous short circuit protection mechanisms
DIN rail mounting
Standard 35mm DIN rail quick-release clips make electrical box installation and maintenance more time-saving.
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