Fuji Electric BW50EAG User Manual

DISTRIBUTION
Molded Case Circuit Breakers & Earth Leakage Circuit Breakers
Technical information
62D4-E-0058

Fuji Electric BW50EAG Specifications

General

Brand	Fuji Electric
Model	BW50EAG
Category	Circuit breakers
Language	English

Summary

Chapter 1 Protecting low-voltage circuits

1-2 Overcurrent protection

Details on protecting circuits from overcurrent faults.

1-3 Phase-loss protection

Explains protection against phase-loss faults in circuits.

Chapter 2 Operating characteristics and performance

2-1 Overcurrent tripping characteristics

Examines how MCCBs react to overcurrents.

2-2 Breaking performance

Details the performance of MCCBs during circuit breaking.

Chapter 3 Selection and application

3-1 Selection check points

Key factors for selecting MCCBs for various applications.

3-4 Wiring protection

3-5 Motor circuit applications

Discusses MCCB selection for motor circuits.

3-8 Selecting an MCCB for capacitor circuit

3-9 MCCBs for semiconductor circuit

Discusses MCCBs for circuits with semiconductor devices.

3-10 Protecting SSCs using MCCBs or MMSs

3-11 Protecting inverter circuits using MCCBs

3-13 MCCBs for DC circuit applications

3-16 Ground fault protection in system applications

Explains ground fault protection methods in systems.

Chapter 4 Environment and usage precautions

Chapter 5 Maintenance inspections

5-1 Faults and causes

Lists common faults and their potential causes during MCCB operation.

5-2 Periodic inspections

Outlines regular inspections for MCCBs to ensure proper function.

5-3 Replacement recommendations

Chapter 6 Short-circuit current calculation

6-1 Calculating short-circuit current

Safety Considerations