GE 55A213937P550B Medium Voltage Fuse
GE 55A213937P550B
Functional Description
The GE 55A213937P550B is a high-voltage motor protection fuse associated with GE’s Limitamp medium-voltage motor control equipment. It is designed to provide reliable circuit protection in industrial electrical distribution systems.
With a 5 kV voltage rating and 550 A fuse rating, this model is intended for applications requiring coordinated protection of medium-voltage motor circuits. Its bolted vacuum configuration provides a secure electrical connection within compatible switchgear assemblies.
Product Characteristics
- Manufacturer: General Electric
- Part Number: 55A213937P550B
- Equipment Series: Limitamp
- Device Category: Medium-Voltage Power Fuse
- Voltage Rating: 5 kV
- Fuse Current Rating: 550 A
- Frame Rating: 800 A
- Connection Type: Bolted
- Fuse Classification: R-Rated
- Primary Function: Electrical Overcurrent Protection
Operating Principles
The fuse operates by interrupting excessive current when electrical conditions exceed its specified operating characteristics.
Its R-rated classification is associated with medium-voltage motor circuit protection. Therefore, appropriate coordination with the motor contactor and overload protection system is important.
The fuse helps protect electrical installations against fault conditions and contributes to the overall reliability of motor control equipment.
Main Design Advantages
Secure Connection: The bolted configuration provides stable electrical contact within compatible equipment.
Motor Protection: Designed for medium-voltage motor control applications.
Industrial Compatibility: Associated with GE Limitamp switching and motor control systems.
Protection Coordination: Supports coordinated electrical protection when correctly selected for the installation.
Typical Industrial Applications
The GE 55A213937P550B can be used in medium-voltage motor control systems across several industries, including steel production, mining, water treatment, chemical processing, power generation, and heavy manufacturing.
It is particularly suitable for installations involving large industrial motors, pumps, compressors, and other medium-voltage electrical loads.
Maintenance and Safety
Before handling the fuse, isolate the electrical circuit and follow the required lockout and verification procedures. Inspect the fuse mounting points and electrical contacts for corrosion, overheating, or mechanical damage.
Replacement units must match the required electrical ratings and protection coordination characteristics. Always refer to the applicable GE Limitamp documentation before commissioning.
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