Description
Overview
The Eaton Bussmann 140FEE is a high-speed, double-barrel BS88 semiconductor protection fuse rated 140A at 690V AC and 450V DC, offering a 200 kA breaking capacity under the Class aR designation per BS88 Part 4 and IEC 60269-4. Purpose-built for protecting semiconductor devices such as thyristors, diodes, IGBTs, and power modules, it operates significantly faster than standard fuses to prevent device damage during fault conditions. CE marked, RoHS compliant, IEC rated, and UL recognized, the 140FEE is a trusted solution for demanding power electronics installations across manufacturing and industrial sectors in India.
Key Features
- Class aR Rating — provides fast-acting, current-limiting protection specifically designed for semiconductor devices, minimizing let-through energy (I²t)
- 200 kA Breaking Capacity — handles high prospective fault currents common in industrial power distribution networks in India
- 690V AC / 450V DC Dual Voltage Rating — suitable for both AC and DC bus protection in variable-speed drive and converter systems
- Double Barrel Design — compact dual-element construction delivers symmetrical current limiting and reliable interruption
- High-Speed Operation — extremely low pre-arcing time ensures semiconductor junction protection before thermal damage occurs
- IEC 60269-4 / BS88 Part 4 Compliance — meets international standards for semiconductor fuse performance and dimensional compatibility
- CE Marked & RoHS Compliant — meets European regulatory requirements for equipment sold into CE markets and environmentally restricted substances
- UL Recognized — accepted for use in equipment requiring UL-listed components, broadening application flexibility
- Part of the Bussmann FEE Series — a proven, globally stocked series with consistent dimensional and electrical characteristics for easy replacement
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 140FEE |
| Series | Bussmann FEE |
| Amperage Rating | 140 A |
| Rated Voltage AC | 690 V |
| Rated Voltage DC | 450 V |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Fuse Type | High Speed British Standard Double Barrel |
| 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 |
| Manufacturer | Eaton Bussmann |
Applications & Selection Guide
The Eaton Bussmann 140FEE is engineered for semiconductor device protection in power electronics systems where rapid fault clearance is critical. Typical installations include AC and DC variable frequency drives (VFDs), thyristor-controlled rectifiers, soft starters, power converters, IGBT inverter bridges, and DC common bus architectures widely deployed in Indian automotive, steel, textile, cement, and process industries. The double-barrel form factor suits retrofit and OEM panel designs where space and dimensional interchangeability are priorities.
The Class aR designation defines fuses that operate within a limited current range, specifically protecting against overloads and short circuits that would otherwise destroy semiconductor junctions. Unlike Class gR fuses which provide full-range protection, aR fuses are intended to be used in combination with other protective devices (such as contactors or circuit breakers) that handle lower-level overcurrents. Engineers specifying protection for thyristor stacks or IGBT modules in VFD panels should verify that the fuse I²t let-through value is less than the semiconductor’s rated I²t withstand to ensure device survival.
In the Indian market, the 140FEE is commonly specified in OEM drive panels, MCC (motor control centre) assemblies, traction systems, and renewable energy converter cabinets. Panel builders and system integrators in Coimbatore, Chennai, Pune, and other industrial hubs can source this fuse through Shansen Enterprises with assured genuineness and technical support for proper application engineering.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — direct access to genuine Eaton Bussmann products
- 100% genuine products supplied with manufacturer warranty and traceability
- Pan-India delivery to all major industrial cities and tier-2 locations
- WhatsApp technical support for application queries, sizing, and cross-reference assistance
- Bulk pricing and project-rate discounts available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann FEE Series fuse holders and fuse bases compatible with double-barrel BS88 semiconductor fuses
- Eaton Bussmann DIN-rail and bolt-on fuse carriers rated for 690V AC semiconductor fuse applications
- Eaton Bussmann striker-pin actuated fuse monitoring switches for blown-fuse indication in drive panels
- Eaton Bussmann 100FEE and 160FEE — adjacent current ratings in the same FEE series for system coordination
- Eaton surge protection devices (SPDs) for upstream voltage transient protection in VFD and converter panels
- Eaton contactors and motor protection relays for coordinated motor circuit protection alongside semiconductor fuses
Frequently Asked Questions
What is the difference between Class aR and Class gR semiconductor fuses?
Class aR fuses provide partial-range current-limiting protection and are designed specifically to protect semiconductor devices from short-circuit currents that exceed the device’s surge current rating. They do not protect against small overloads and must be used in combination with other overcurrent protective devices such as contactors or circuit breakers. Class gR fuses, by contrast, are full-range fuses capable of interrupting currents from the minimum fusing current through the rated breaking capacity. For VFD and thyristor stack protection, Class aR fuses like the 140FEE are the standard engineering choice due to their extremely low let-through energy (I²t).
Can the Eaton Bussmann 140FEE be used on both AC and DC circuits?
Yes. The 140FEE carries a dual voltage rating — 690V AC and 450V DC — making it suitable for protection on both the AC input side and the DC bus of drive systems and converters. When applying the fuse on DC circuits, always verify that the application voltage does not exceed the 450V DC rating and that the DC fault current withstand characteristics of the fuse are appropriate for your system’s source impedance and prospective fault current level.
What does the 200 kA breaking capacity mean for industrial panel design?
The 200 kA breaking capacity indicates the maximum prospective short-circuit current the 140FEE can safely interrupt without fuse body rupture, arc flash, or loss of containment. For most industrial installations in India — including those fed from 11kV/415V distribution transformers — prospective fault levels at the drive panel are well below 200 kA, meaning the 140FEE provides an adequate safety margin. Panel designers should always confirm the installation’s available fault current using a short-circuit study and select fuses with a breaking capacity that exceeds this value.
How do I select the correct FEE series fuse current rating for a VFD or thyristor drive?
For VFD and thyristor drive semiconductor protection, the fuse current rating is typically selected based on the semiconductor device’s rated RMS current or the drive’s input current, applying a derating factor recommended by the drive manufacturer (commonly 1.5× to 2× the continuous current). Critically, the fuse’s clearing I²t at the application voltage must be less than the semiconductor’s rated I²t withstand. Eaton Bussmann provides application-specific selection tables and I²t data for the FEE series. Contact Shansen Enterprises for assistance with application engineering and fuse coordination for your specific drive model.
Is the Eaton Bussmann 140FEE CE marked and RoHS compliant?
Yes. The 140FEE carries CE marking confirming compliance with applicable European directives, and it is RoHS compliant, meaning it is manufactured without the restricted hazardous substances (lead, mercury, cadmium, hexavalent chromium, PBB, PBDE) defined under the RoHS directive. It is also IEC rated and UL recognized, providing broad compliance coverage for export-oriented OEM panel builders and multinational project specifications within India.
How do I order the Eaton Bussmann 140FEE from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 140FEE directly from Shansen Enterprises by clicking the WhatsApp button on this page or sending an email inquiry with the catalog number 140FEE, required quantity, and your delivery location. Our team in Coimbatore will respond with pricing, availability, and lead time. We supply pan-India and offer bulk pricing for panel builders, OEMs, and system integrators. Visit shansenenterprises.com or contact us via WhatsApp for the fastest response.
