Introduction Siemens

Область применения

The miniature circuit breakers of the N System primarily serve the purpose of protecting cables and conductors against overload and short circuits. Thus, they also serve to protect electrical equipment against excessive overheating acc. to DIN VDE 0100 Part 430.

Under certain conditions, miniature circuit breakers also offer protection against dangerous leakage currents caused by excessive touch voltages due to insulation faults acc. to DIN VDE 0100 Part 410.

Thanks to their fixed rated current settings, the miniature circuit breakers may also be used for limited motor protection applications.

A range of different tripping characteristics are available for the respective application. The EN 60898, DIN VDE 0641 Part 11 and IEC 60898 standards form the basis for the miniature circuit breakers'' design and approval.

When used for industrial applications and for system and plant engineering applications, the miniature circuit breakers of the N system can be supplemented by individually mountable add-on components such as auxiliary switches, fault signal contacts, shunt trips and individually mountable accessories, such as busbar systems and mounting parts.

Особенности

• High rated breaking capacity up to 6 000 A acc. to EN 60898
• Excellent current limiting and selectivity characteristics
• Tripping characteristics B and C
• Terminals offer protection against contact with fingers or the back of the hand acc. to the German accident prevention regulations VBG 4/BGV A2
• Combined terminals enable a simultaneous connection of busbars and feeder cables
• Uniform additional components which can be mounted individually, fast and on-site thanks to their snap-on technique
• The handle locking device effectively prevents any unauthorized operation of the handle
• Especially suited for installation into flat distribution boards for building installations