Eaton 74J-7-1/2 Telecommunication Fuse - CE Marked
Part Number: 74J-7-1/2
Quick Summary
The 74J-7-1/2 telecommunication fuse from Eaton protects telecom circuits in 60 V DC systems with fast-acting response. In dense telecom enclosures, nuisance trips or improper ratings disrupt service; precise amperage and voltage ratings help prevent that. This fuse carries CE marking for European compliance and is designed in the Bussmann series for reliable, cylindrical form factor. Engineers value its compact 1.62 inch length, 0.42 inch width, and 2.4 inch height for easy replacement in crowded panels. By limiting fault current to 7-1/2 A at 60 VDC, the device supports longer service life for telecom rack equipment and reduces maintenance downtime. Its non-indicating indicator minimizes visual drift, and the cylindrical construction aligns with historic AT&T Columbus fuse families, ensuring compatibility with legacy telecom hardware.
Product Information
Extended Description
74J-7-1/2 Eaton: Eaton Bussmann series Type 74 telecommunication fuse, Cylindrical, 60 Vdc, 7-1/2 A, Non Indicating, Fast-acting
Product Name
Eaton Bussmann series Type 74 telecommunication fuse
Catalog Number
74J-7-1/2
UPC
051712622370
Product Length/Depth
1.62 in
Product Height
2.4 in
Product Width
0.42 in
Product Weight
0.5 lb
Warranty
Not Applicable
Compliances
CE Marked
Amperage Rating
7-1/2A
Voltage rating
60 V DC
Packaging type
Standard
Fuse indicator
Non-indicating
Special features
Cylindrical
74J-7-1/2~74J-7-1-2~ATandT COLUMBUS FUSE
74J-7-1/2~74J-7-1-2~ATandT COLUMBUS FUSE
Bussmann series Fuseology
Eaton Specification Sheet - 74J-7-1/2
Feature: 60 V DC rating with a fast-acting 7-1/2 A profile. Business Impact: Enables rapid interruption of fault current, reducing thermal and electrical stress on sensitive telecom components. Application: Ideal for DC distribution in telecom racks and data-center equipment. Feature: Cylindrical body with a non-indicating design. Business Impact: Minimizes visual drift and misread status in crowded panels, improving maintenance accuracy. Application: Compatible with legacy Bussmann Type 74 and AT&T Columbus fuse generations. Feature: Compact footprint at 1.62 in length, 0.42 in width, and 2.4 in height. Business Impact: Supports higher-density panel layouts and easier replacement in confined spaces. Application: Suitable for telecom enclosures and rack-mounted equipment. Feature: CE Marked compliance. Business Impact: Ensures regulatory acceptance in European deployments. Application: Deploy in CE-regulated telecom installations and data centers. Feature: Standardized Bussmann series compatibility and packaging. Business Impact: Streamlines procurement, reduces part variety, and lowers inventory costs. Application: Ideal for OEMs, integrators, and service providers maintaining telecom distributions. Feature: Non-indicating, reliable cylindrical construction. Business Impact: Reduces maintenance complexity and avoids false indicators, saving labor time during replacements. Application: Fits into conventional fuse holders in legacy and modern telecom hardware.
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FAQs
To install or replace the 74J-7-1/2, de-energize the DC circuit and remove the fuse holder. Verify the circuit current is within 7-1/2 A and the supply is 60 V DC. Use a compatible Bussmann Type 74J cylindrical fuse with the same rating, ensuring the non-indicating body seats securely in the holder.
Electrical ratings include 60 V DC maximum voltage and a 7-1/2 A amperage rating with fast-acting behavior. The fuse is cylindrical, non-indicating, and measures 1.62 inches long, 0.42 inches wide, and 2.4 inches high. It is CE marked and designed for telecom DC protection in Bussmann series installations.
The 74J-7-1/2 is ideal for DC distribution in telecom racks, switches, and data-center equipment, especially where legacy AT&T Columbus fuse families are encountered. Its compact form factor supports dense panel layouts, while its 60 V DC, 7.5 A rating provides reliable protection for sensitive telecom electronics.
The fuse carries CE Marking, signaling compliance with European regulatory requirements for electrical protection devices. This facilitates safer deployments in CE markets and aligns with European integration standards for telecom and data-center installations; no other certifications are specified in the provided data.
Using the 74J-7-1/2 reduces downtime due to its fast-acting protection and compact footprint, allowing higher-density panel designs. The non-indicating body simplifies stock management and reduces false alarms; standard Bussmann series compatibility improves procurement efficiency and long-term ROI through streamlined spares and faster replacements.