Eaton FWH-125A High Speed Fuse - RoHS Compliant
Part Number: FWH-125A
Quick Summary
The Eaton FWH-125A high speed fuse provides fast overcurrent protection for industrial power circuits and motor drives, helping protect drives, controllers, and downstream equipment. Engineers struggle with nuisance trips and maintenance costs when protection devices don't clear faults quickly enough, leading to unplanned downtime and costly component damage. RoHS compliant; for CE marking, IP ratings, or SIL certification, please contact factory to confirm regional compliance options and latest test data. Designed for reliability in harsh factory environments, it supports safer panel design, simplifies wiring with stud terminals, and reduces cartridge replacement cycles, delivering lower maintenance costs and improved uptime. This makes it a practical choice for control panels and distributed power architectures.
Product Information
Extended Description
FWH-125A Eaton: Eaton Bussmann series FWH high speed fuse, 1000 Vac, 800 Vdc, 125A, Non Indicating, High speed fuse, Stud
Product Name
Eaton Bussmann series FWH high speed fuse
Catalog Number
FWH-125A
UPC
051712150095
Product Length/Depth
3.701 in
Product Height
1.3 in
Product Width
1.181 in
Product Weight
0.34 lb
Warranty
Not Applicable
Compliances
RoHS Compliant Contact factory
Amperage Rating
125 A
Voltage rating
1000 Vac, 800 Vdc
Packaging type
Standard
Fuse indicator
Non Indicating
Mounting method
Stud
125 A, 1000 Vac, 800 Vdc electrical rating enables fast fault clearing, minimizing arc energy and reducing damage to power electronics. Business impact: shorter downtime and extended drive life, boosting overall equipment reliability. Application: motor drives, power distribution, and industrial control panels. Non-indicating design reduces panel clutter and eliminates ambiguous visual signals, improving commissioning speed and reliability. Business impact: fewer misreadings during fault conditions and easier compliance with panel labeling. Application: control cabinets and safety interlocks where remote status is monitored. Stud mounting and compact form factor (3.701 in length, 1.181 in width, 1.3 in height) deliver robust connections in vibration-prone environments with minimal space. Business impact: faster retrofits and less panel modification; application: OEM machine builds and modular cabinets. RoHS compliance simplifies regulatory onboarding, enabling smoother supply chain validation. Application: global deployments with strict material restrictions. Standard packaging supports stocked inventory and rapid replacement, reducing lead times and batch reorders. Business impact: lower carrying costs and improved serviceability in large-scale automation projects. Overall, the FWH-125A aligns with Bussmann series compatibility, ensuring predictable performance across standard fuse blocks and panel layouts.
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FAQs
Begin with de-energizing the system and verifying the catalog number. Mount the fuse in the designated Bussmann series fuse block using the stud termination, align with the panel’s current path, and secure the hardware to ensure a vibration-resistant connection. Confirm clearances around the fuse body and re-check electrical continuity prior to energizing. This approach minimizes the risk of loose connections and ensures reliable fault clearing in motor drives and control panels.
The FWH-125A is rated at 125 A with a voltage rating of 1000 Vac and 800 Vdc, designed as a high speed fuse for fast fault interruption. Typical applications include motor drives, power distribution, and industrial control panels where rapid clearing of faults protects downstream components and reduces downtime and damage in automation environments.
Yes. The FWH-125A is part of the Eaton Bussmann series and uses stud termination compatible with standard Bussmann fuse blocks and mounting footprints. Its compact dimensions support easy retrofit in existing cabinets, with standard packaging enabling straightforward stocking and procurement for OEMs and service providers working on automation and control systems.
The FWH-125A is RoHS compliant, helping meet material restrictions in global markets. For CE marking, IP ratings, or SIL certification, confirm with the factory to verify available options and latest test data. This ensures alignment with regional regulatory requirements and supports smooth deployment in regulated manufacturing environments.
The fuse's fast clearing reduces nuisance trips and limits arc energy, contributing to lower downtime and less downstream damage. Its non-indicating design, robust stud mounting, and standard packaging streamline installation, maintenance, and stocking, delivering improved uptime, predictable replacement cycles, and overall project cost savings in large-scale automation and machine-building projects.