Descriere
Circuit-breaker NZM3, 3 pole, Switching capacity SCCR 480Y/277Â V 60Â Hz( Icu ): 100 kA, Switching capacity SCCR 600Y/347Â V 60Â Hz( Icu ): 50 kA, Switching capacity SCCR 480Â V 60Â Hz( Icu ): 100 kA, Rated current = rated uninterrupted current (In = Iu ): 250 A, Installation type: Fixed, Screw connection, Standard/Approval: UL/CSA, IEC, Protective function: Systems, cable, selectivity and generator protection
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Specificatii
| Electrical | |
| Rated permanent current Iu | 250 |
| Rated voltage | 690 |
| Rated short-circuit breaking capacity Icu at 400 V, 50 Hz | 150 |
| Overload release current setting | 125 |
| Adjustment range short-term delayed short-circuit release | 250 |
| Adjustment range undelayed short-circuit release | 500 |
| Power loss | - |
| With integrated under voltage release | No |
| Number of poles | 3 |
| Other | |
| Device construction | Built-in device fixed built-in technique |
| Protection | |
| Integrated earth fault protection | No |
| Complete device with protection unit | Yes |
| Degree of protection (IP) | IP20 |
| Connection | |
| Type of electrical connection of main circuit | Screw connection |
| Number of auxiliary contacts as normally closed contact | 0 |
| Number of auxiliary contacts as normally open contact | 0 |
| Number of auxiliary contacts as change-over contact | 0 |
| Position of connection for main current circuit | Front side |
| Mounting/installation | |
| Suitable for DIN rail (top hat rail) mounting | No |
| DIN rail (top hat rail) mounting optional | No |
| Model/type | |
| With switched-off indicator | No |
| Type of control element | Rocker lever |
| Motor drive integrated | No |
| Options | |
| Motor drive optional | Yes |
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