Description
Overview
The Eaton Bussmann 170M6269 is a 1600 A, 690 V AC high speed square body semiconductor fuse from the trusted Bussmann 170M Series, engineered specifically to protect power semiconductor devices such as SCRs, diodes, IGBTs, and thyristors from damaging overcurrent events. Rated Class aR to IEC 60269-4 with a 200 kA interrupt rating, this fuse provides ultra-fast current limitation that conventional fuses cannot achieve. Its 3KN/110 square body construction with bolt-in connections ensures straightforward integration into switchgear panels, drive cabinets, and power converter assemblies across a wide range of Indian industrial sectors.
Key Features
- 1600 A Amperage Rating — suitable for high-current semiconductor protection in large drive and converter systems
- 690 V AC Rated Voltage — compatible with standard 415 V and 690 V three-phase industrial supply voltages used across India
- 200 kA Breaking Capacity — provides robust fault current interruption to safeguard costly power electronics
- Class aR Rating — current-limiting, fast-acting semiconductor fuse class per IEC 60269-4 for precise semiconductor protection
- 3KN/110 Square Body Format — compact, standardized form factor simplifies panel design and replacement
- Bolt-In Connections — secure, low-resistance terminations for reliable performance in high-vibration industrial environments
- CE Marked and RoHS Compliant — meets European safety and environmental directives, suitable for export-oriented OEM equipment
- IEC Rated, UL and CSA Listed — dual certification supports both domestic Indian installations and international project requirements
- No Fuse Indicator — clean, uninterrupted body profile for installations where visual indication is provided externally
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6269 |
| Series | Bussmann 170M |
| Amperage Rating | 1600 A |
| Voltage Rating (AC) | 690 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Construction | Square body 3KN/110 format with bolt-in connections |
| Fuse Indicator | None |
| Standard | IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated, UL Listed, CSA Listed |
| Application | Semiconductor protection, DC common bus, DC drives, power converters, rectifiers, VFDs, soft starters, thyristor stacks |
Applications & Selection Guide
The Eaton Bussmann 170M6269 is the preferred choice wherever high-current power semiconductor devices must be protected against destructive fault currents in the shortest possible time. Its Class aR rating means it is designed exclusively for semiconductor protection — acting before the semiconductor’s I²t withstand limit is exceeded — making it indispensable in VFD panels, DC drives, rectifier assemblies, soft starters, and thyristor-controlled power systems commonly deployed across automotive, steel, cement, textile, and petrochemical industries in India.
When selecting this fuse, verify that the I²t let-through value of the 170M6269 is less than or equal to the I²t withstand rating of the semiconductor device being protected. The 690 V AC voltage rating provides adequate margin for equipment running on 415 V three-phase supplies found throughout Indian factories and infrastructure projects, and also covers 690 V systems used in wind energy, marine, and mining applications.
In Coimbatore’s rapidly expanding textile machinery, CNC machine tool, and industrial automation sectors, the Bussmann 170M6269 is a standard component in large drive panels and motor control centers. Panel builders and OEMs across Tamil Nadu and the wider Indian market trust the 170M Series for its consistent quality, availability, and comprehensive certification package, which simplifies the approval process for export projects and domestic installations alike.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full manufacturer backing
- 100% genuine Eaton Bussmann products supplied with warranty and traceability documentation
- Pan-India delivery to all major industrial hubs including Chennai, Bengaluru, Mumbai, Pune, Hyderabad, and beyond
- WhatsApp technical support for fuse selection, I²t coordination, and compatibility queries
- Bulk pricing and scheduled supply contracts available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and fuse blocks for 3KN/110 square body format
- Eaton Bussmann 170M Series semiconductor fuses in other current ratings (from 63 A to 2000 A) for full drive line-up standardization
- Eaton Bussmann DIN-rail and panel-mount fuse bases compatible with 170M bolt-in terminations
- External fuse indication and blown-fuse monitoring accessories for remote alarm signaling
- Eaton Bussmann Class gR backup fuses for combined semiconductor and general-purpose circuit protection
- Copper busbars and pressure plate terminal hardware for 3KN/110 bolt-in connections
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M6269?
Class aR is a semiconductor fuse classification defined in IEC 60269-4. Unlike general-purpose Class gG fuses, a Class aR fuse is designed exclusively to protect semiconductor devices by interrupting fault currents extremely rapidly — within microseconds — before the semiconductor’s I²t withstand limit is exceeded. The 170M6269 must always be used in conjunction with a backup fuse or circuit breaker for overload protection, as its aR rating covers only the high-current fault region.
Can the 170M6269 be used on a 415 V three-phase supply common in Indian industrial plants?
Yes. The 170M6269 is rated for 690 V AC, which provides a comfortable voltage margin when applied on standard 415 V (line-to-line) three-phase systems used across India. This margin is in line with IEC 60269-4 application guidelines and is particularly relevant in drives and converters where transient overvoltages may occur during fault interruption.
Is the 170M6269 suitable for DC bus protection in VFD and DC drive applications?
Yes. The Eaton Bussmann 170M6269 is explicitly rated and recommended for DC common bus protection, DC drives, rectifiers, and VFD DC link applications. When applying this fuse on DC circuits, refer to the Eaton Bussmann 170M Series DC voltage derating tables to confirm the rated DC voltage for your specific application, as DC interrupt ratings differ from AC ratings.
What is the significance of the 200 kA interrupt rating on the 170M6269?
The 200 kA interrupt rating — also referred to as breaking capacity — confirms that the 170M6269 can safely interrupt prospective fault currents up to 200 kA without rupture or hazardous arc flash. This is essential in large industrial installations with high available fault current levels, such as those found in steel plants, large cement factories, and utility substations across India, where switchgear and protection coordination must account for high short-circuit levels.
Does the Eaton Bussmann 170M6269 include a fuse blown indicator?
No, the 170M6269 does not include a built-in fuse indicator. For applications requiring blown-fuse detection, Eaton Bussmann offers separate external indication accessories and monitoring modules compatible with the 170M Series. Shansen Enterprises can advise on suitable indicator options and supply them alongside the fuse.
How do I order the Eaton Bussmann 170M6269 from Shansen Enterprises?
You can request a quote directly by clicking the WhatsApp button on this page or by sending an email to our sales team via the contact form. Please mention the catalog number 170M6269, required quantity, and delivery location. Shansen Enterprises supplies genuine Eaton Bussmann products with pan-India delivery from Coimbatore, Tamil Nadu, and can offer bulk pricing and scheduled delivery for panel builders and OEM customers.
