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Specifies the standard and high interrupting ratings of the circuit breakers.
Explains the 4-position drawout assembly mechanism for easy connection and disconnection.
Covers the breaker's reliability and reduced maintenance requirements under normal conditions.
Lists and labels the main components of the circuit breaker.
Displays time-current curves for STR 28D overcurrent protection.
Displays time-current curves for ST 308S/ST 308ST overcurrent protection.
Displays time-current curves for ST 408S/ST 408ST overcurrent protection.
Displays time-current curves for ground-fault protection.
Displays time-current curves for load monitoring.
Provides recommendations for inspection intervals and maintenance procedures.
Details endurance ratings without, with service, and by standards.
Lists compliance with international standards like IEC 947-2.
Explains the purpose and principle of thermal memory in trip units.
General| Poles description | 3P |
|---|---|
| Suitability for isolation | Yes |
| Rated short-time withstand current | 50 kA |
| Number of poles | 3 |
| Trip unit | Electronic |
| Rated operational voltage | 690V AC |
| Mechanical life | 20000 operations |
| Electrical life | 10000 cycles |
| Mechanical durability | 20000 cycles |
| Electrical durability | 10000 cycles |
