WESTINGHOUSE 151D933G03 USNT

Description:

The Westinghouse 151D933G03 is a CLS-22 medium-voltage current-limiting fuse designed to provide high-speed protection against overloads and short-circuit faults in power distribution systems. Rated at 5.08 kV and 390 Amps (18R), this fuse is commonly used in switchgear, motor circuits, transformers, feeder circuits, and industrial power systems. The current-limiting design rapidly interrupts fault currents, reducing thermal and mechanical stress on downstream equipment and improving overall system protection.

Applications:

The Westinghouse 151D933G03 CLS-22 fuse is commonly installed in medium-voltage switchgear, industrial facilities, utility substations, manufacturing plants, and commercial power distribution systems. It is used to protect transformers, motor starters, feeder circuits, and electrical distribution equipment from damaging fault currents and overload conditions. The fuse is particularly suitable for motor circuit current-limiting applications requiring high interrupting capacity and dependable fault protection.

Technical Specifications:

• Manufacturer: Westinghouse Electric Corporation
• Part Number: 151D933G03
• Product Type: Current-Limiting Power Fuse
• Series: CLS-22
• Voltage Rating: 5.08 kV
• Current Rating: 390 Amps
• Fuse Designation: 18R
• Frequency Rating: 60 Hz
• Interrupting Rating: 50 kA Symmetrical
• Interrupting Rating: 80 kA Asymmetrical
• Fuse Type: Double Barrel Current-Limiting Fuse
• Function: Overcurrent and short-circuit protection
• Application: Medium-voltage power distribution systems
• Installation Type: Switchgear and fuse holder mounted
• Intended Use: Motor circuit, transformer, and feeder protection
• Performance Feature: High-speed fault interruption with current-limiting protection.

Common Replacements:

• Eaton / Cutler-Hammer 151D933G03 CLS-22 Fuse
• Eaton 5ACLS-18R Current-Limiting Fuse
• Westinghouse / Eaton GCLS-22