 PCN_BUR_00119_LET-ET-FE_23-05-2019.pdf | [ ] | 0 kB |
Important Update: Eaton Bussmann LET, ET & FE Fuses – End Tag Redesign (May 2019)
In industrial electrical systems, reliable overcurrent protection is critical — and Eaton’s Bussmann series has long been a trusted name in fuses. On 23rd May 2019, Eaton issued Product Change Notification PCN_BUR_00119, announcing a design update to the end tags of its LET, ET and FE series fuses (up to 63 A). This update brings a small but impactful improvement that every engineer, buyer and maintenance technician should know.
What’s Changed? A Thinner End Tag Design
The core of the Product Change Notification is straightforward:
✔ End tag thickness reduced
Eaton has redesigned the end tags on certain LET, ET and FE fuses — the metal tabs at each end of a fuse — making them thinner than before.
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Old end tag thickness: 2.34 mm
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New end tag thickness: 1.60 mm
This change applies to LET, ET and FE fuses up to and including 63 A. Fuses rated 80 A and above retain the original end tag thickness.
The redesigned tags will be introduced to the market from 1st July 2019. Orders placed before that date will still receive the older 2.34 mm tags.
Why This Matters for Your Electrical System
Even though the performance of the fuse remains unchanged, this seemingly small modification can have practical implications:
🔧 Installation & Fitment
Thinner end tags can influence how a fuse fits into clips and holders. Technicians should ensure compatibility when replacing older fuses, especially in equipment with tight mechanical tolerances.
📦 Inventory Management
Organizations with existing stock of older fuses need to track inventory by tag type. Accurate records help avoid installation mistakes, especially in critical production or safety systems.
🔄 Maintenance Planning
Electrical maintenance teams should be aware of this change so they can anticipate differences during service visits and ordering cycles.
Clarity on Fuse Specifications
The product notification also corrects previously published dimensions in marketing collateral. Updated outline drawings are now provided to ensure accurate planning and documentation for engineers and procurement teams.
By maintaining clear, correct dimensional data, Eaton supports better system design, safety, and parts traceability across industrial environments.
Summary: What You Need to Know
To recap the key points from Eaton’s PCN_BUR_00119:
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📅 Date Issued: 23 May 2019
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🔁 Effective Availability: Fuses with new end tags from 1 July 2019
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📏 Main Change: End tag thickness reduced from 2.34 mm → 1.60 mm
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📊 Applies To: LET, ET and FE fuses (up to 63 A)
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⚠️ No performance changes — only mechanical design refinement
Final Thoughts: Small Change, Big Impact
Product revisions like the Eaton Bussmann end tag redesign are a great example of how continuous improvement in industrial components can benefit users — when communicated clearly. By understanding product change notifications like PCN_BUR_00119, electrical engineers and procurement professionals ensure that systems remain safe, compatible, and up-to-date.
If you manage electrical inventories or specify fuses in designs, take note of this change — it could be the difference between a seamless installation and an unexpected site issue.
