CELECO D291 PORCELINE FUSE 1KV 3450A NBAI 45KV 08-21 MFG

Description:

The CELECO Porcelain Fuse D291 is used in medium-voltage electrical distribution systems to provide overcurrent and fault protection for power equipment, transformers, switchgear, and utility distribution networks. Commonly installed in industrial power systems, substations, electrical utilities, and heavy-duty distribution equipment requiring high interrupting capacity and reliable fault isolation. Maintenance teams and electrical engineers use this fuse for replacement, system upgrades, and preventive maintenance to ensure safe operation and protection of critical electrical infrastructure. The fuse is marked with a 1kV voltage rating, 3450A current rating, 45kV interrupting capacity, and an August 2021 manufacturing date.

Applications:

The CELECO D291 Porcelain Fuse is commonly used in electrical substations, utility distribution systems, transformer protection circuits, industrial switchgear assemblies, motor control systems, and power distribution equipment where high fault-current interruption and dependable overcurrent protection are required to safeguard electrical assets and maintain system reliability.

Technical Specifications:

• Manufacturer: CELECO
• Part Number: D291
• Product Type: Porcelain Fuse
• Fuse Construction: Porcelain Ceramic Body
• Voltage Rating: 1 kV
• Current Rating: 3450 A
• Interrupting Capacity: 45 kV
• Function: Overcurrent and Short-Circuit Protection
• Application: Medium-Voltage Power Distribution
• Mounting Type: Fuse Holder / Switchgear Installation
• Body Material: High-Strength Electrical Porcelain
• Protection Type: Current-Limiting Fuse Protection
• Manufacturing Date: 08-2021
• Application Environment: Industrial and Utility Power Systems

Common Replacements:

• Eaton Bussmann Medium Voltage Porcelain Fuse 1kV 3450A
• S&C Electric Power Fuse Type SMU-20
• Mersen Medium Voltage Current-Limiting Fuse 1kV Class Distribution Fuse