Description
Overview
The Eaton Bussmann 100FE is a single barrel, high speed Class aR semiconductor protection fuse link from the Bussmann FE series, built to BS88 Part 4 and IEC 60269-4. Rated 100A at 690V AC and 450V DC with a 200 kA breaking capacity, it provides ultra-fast current limiting to protect thyristors, IGBTs, diodes, and other power semiconductor devices in industrial drive and converter systems. Its single barrel form factor is compatible with standard BS88 fuse holders widely used across Indian panel builders and OEM drive manufacturers.
Key Features
- High Speed Class aR Action — extremely fast let-through current limiting specifically designed to protect semiconductor junctions before they reach destructive energy levels
- 200 kA Breaking Capacity — rated for the highest fault levels found in industrial MV/LV switchgear applications across India
- 690V AC / 450V DC Dual Voltage Rating — covers both AC drive input stages and DC bus protection within a single fuse type
- 100A Amperage Rating — matched to medium-power drive and converter output stage protection requirements
- Single Barrel BS88 Form Factor — drop-in compatible with standard British Standard fuse holders and DIN-mounted carrier systems
- CE Marked and RoHS Compliant — meets European directive requirements for export-oriented panel builder projects
- IEC Rated and UL Recognized — dual certification supports both IEC-standard Indian installations and UL-compliant export equipment
- Bussmann FE Series Construction — silver element, high-purity quartz sand filler, and robust ceramic body for consistent clearing performance across fault levels
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 100FE |
| Series | Bussmann FE |
| Fuse Type | High Speed British Standard, Single Barrel |
| Fuse Class | Class aR |
| Amperage Rating | 100 A |
| Rated Voltage AC | 690 V |
| Rated Voltage DC | 450 V |
| Breaking Capacity | 200 kA |
| Standard | BS88 Part 4, IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated, UL Recognized |
| Application | Semiconductor protection, DC drives, VFDs, power converters, rectifiers, soft starters, thyristor stacks, DC common bus |
Applications & Selection Guide
The 100FE is the correct choice when back-up or line fuses alone cannot protect semiconductor devices fast enough. In DC drives, VFDs, and soft starters, the internal IGBTs and thyristors are vulnerable to destruction within microseconds of a fault — the Class aR rating of the 100FE means it clears fault current before the I²t energy reaches the semiconductor’s rated withstand level. For rectifier bridges, thyristor stacks, and DC common bus architectures, a dedicated high speed fuse at each arm or per phase is standard engineering practice, and the 100FE fits directly into that role at the 100A current level.
When selecting the 100FE for your panel or drive, verify that the continuous load current does not exceed 80–90% of the 100A rating under maximum ambient temperature, and confirm the DC bus voltage does not exceed 450V DC. For AC-side protection on 415V or 690V networks with upstream fault levels at or below 200 kA, the 100FE provides adequate interrupting margin. Always cross-check the semiconductor manufacturer’s I²t withstand value against the 100FE datasheet clearing I²t to confirm coordination.
Indian industries that regularly specify the Eaton Bussmann FE series include steel and aluminum rolling mills with large DC drive systems, chemical and petrochemical plants using variable speed pump and compressor drives, textile machinery OEMs in Coimbatore and Tirupur, solar inverter and UPS manufacturers, and industrial automation panel builders across Pune, Chennai, Hyderabad, and Ahmedabad. The dual IEC and UL certification of the 100FE also makes it a preferred component for export-grade control panels built to international standards.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — all products are sourced directly through official Eaton distribution
- 100% genuine Eaton Bussmann products supplied with manufacturer warranty
- Pan-India delivery — regular shipments to Chennai, Bangalore, Mumbai, Pune, Hyderabad, Ahmedabad, and all tier-2 cities
- WhatsApp technical support for fuse selection, coordination studies, and replacement cross-reference queries
- Bulk pricing and priority allocation for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann BS88 Single Barrel Fuse Holders and Carriers (matching FE series dimensions)
- Eaton Bussmann DIN-rail mounted fuse bases compatible with FE series single barrel fuses
- Eaton Bussmann semiconductor protection fuses in adjacent ratings: 80FE, 125FE, 160FE for system coordination
- Eaton Bussmann striker / blown fuse indicators for FE series (where applicable)
- Eaton Bussmann BS88 Part 4 fuse holder isolation links and end caps
- Eaton Bussmann high speed fuses for three-phase rectifier bridge arm protection (matching FE series)
Frequently Asked Questions
What is the difference between Class aR and Class gR semiconductor fuses?
Class aR fuses, such as the Eaton Bussmann 100FE, are designed for partial-range current limiting — they clear only fault currents above a defined threshold and are specifically optimized to protect semiconductor devices. Class gR fuses cover the full breaking range and can also provide overload protection. For direct semiconductor protection in drives and converters, Class aR is the standard engineering choice because it is optimized for minimum let-through energy at fault current levels that would destroy a thyristor or IGBT.
Can the 100FE be used for both AC and DC semiconductor protection?
Yes. The Eaton Bussmann 100FE carries dual voltage ratings: 690V AC and 450V DC. This makes it suitable for AC-side input protection ahead of a rectifier bridge as well as DC bus protection within a drive or converter, provided the operating voltage does not exceed the respective rated voltage in each application. Always verify polarity and circuit configuration when applying the fuse on DC circuits.
What breaking capacity does the 100FE provide, and is it sufficient for Indian industrial installations?
The Eaton Bussmann 100FE is rated for a breaking capacity of 200 kA. This is the highest standard interrupting rating for LV semiconductor protection fuses and is more than adequate for virtually all industrial LV installations in India, where prospective fault levels at 415V or 690V bus rarely exceed 50–65 kA in practice. The 200 kA rating provides a substantial safety margin and satisfies the requirements of IEC 60269-4 and BS88 Part 4.
Which industries and applications in India commonly use the Eaton Bussmann FE series fuses?
The Bussmann FE series including the 100FE is widely used across Indian industries wherever power semiconductor devices require dedicated fast-acting protection. Common applications include VFD and soft starter panels in textile mills (Coimbatore, Tirupur, Surat), DC drive systems in steel rolling mills and paper plants, rectifier and thyristor stacks in electroplating and chemical industries, solar inverter manufacturing, UPS systems, and export-grade automation panels built by OEMs in Pune, Chennai, and Bangalore.
Is the 100FE a direct replacement for other BS88 Part 4 single barrel high speed fuses?
The 100FE may be dimensionally and electrically compatible with other BS88 Part 4 single barrel high speed fuses at 100A 690V, but cross-referencing must always be verified against physical dimensions, I²t clearing characteristics, and the fuse holder manufacturer’s approval list. Contact Shansen Enterprises with your existing fuse catalog number for a formal cross-reference check before substituting on a live installation.
How do I order the Eaton Bussmann 100FE from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 100FE directly from Shansen Enterprises by clicking the WhatsApp button on this page or sending an email inquiry with your required quantity and delivery location. Our team will confirm stock availability, provide a competitive price, and arrange pan-India delivery. For bulk orders or ongoing OEM requirements, ask about our priority supply agreements and volume pricing for panel builders and contractors.
