Description
Overview
The Eaton Bussmann 170M6814D is a high speed square body semiconductor protection fuse rated 1000 A at 690 V AC, built to the DIN 43620 DIN 3 format with knife blade contacts for straightforward panel integration. As part of the widely specified Bussmann 170M Series, it carries a 200 kA breaking capacity under IEC 60269-4, making it a proven choice for engineers protecting IGBTs, thyristors, diodes, and MOSFETs in high-power converter systems. The dual fuse indicator (Type D) provides clear visual fault detection, reducing downtime in industrial installations across India.
Key Features
- 1000 A Current Rating — suitable for high-current semiconductor protection in heavy industrial drives and converters
- 690 V AC Voltage Rating — compatible with standard three-phase industrial supply voltages used across Indian manufacturing
- 200 kA Interrupt Rating — high breaking capacity ensures safe fault clearance under worst-case short-circuit conditions
- Class aR Rating — designed exclusively for semiconductor protection with fast sub-cycle clearing to prevent device damage
- DIN 43620 DIN 3 Format with Knife Blade Contacts — industry-standard form factor for easy mounting in existing DIN-compatible fuse holders and bus bars
- Dual Fuse Indicator Type D — provides two independent visual indication points for fast, unambiguous fault identification during panel inspection
- IEC 60269-4 Compliant — meets international standard for semiconductor fuses, accepted by inspection authorities across India
- CE Marked and RoHS Compliant — meets European conformity and hazardous substance requirements for export-oriented and compliant manufacturing facilities
- Bussmann 170M Series — a globally recognized platform with extensive cross-reference data, holder availability, and application engineering support
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6814D |
| Series | Bussmann 170M |
| Amperage Rating | 1000 A |
| Voltage Rating (AC) | 690 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Construction / Format | DIN 43620 DIN 3, Knife Blade Contacts |
| Fuse Indicator | Dual Indicator, Type D |
| Standard | IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated |
| Application | Semiconductor protection, DC common bus, DC drives, power converters, rectifiers, VFDs, soft starters, thyristor stacks |
Applications & Selection Guide
The 170M6814D is specified wherever fast-acting semiconductor protection is required at high current levels. It is particularly effective on the DC common bus and AC input/output of variable frequency drives (VFDs), soft starters, and active front-end converters operating from 415 V or 690 V supplies. In rectifier bridges and thyristor stacks used in electrochemical, steel, and aluminium processing plants, the Class aR characteristic ensures sub-cycle fault clearance before semiconductor junction temperatures reach destructive levels.
Class aR fuses like the 170M6814D are not interchangeable with general-purpose Class gG fuses. They are optimized for the let-through energy (I²t) limits of specific semiconductor devices, so selection must match the I²t rating published in the power module datasheet. Engineers in India specifying protection for Siemens, ABB, Danfoss, or indigenous drive manufacturers will find the 170M Series cross-reference guides useful for exact substitution and coordination studies.
Industries across India that regularly specify the Eaton Bussmann 170M Series include automotive manufacturing (robotic welding and press lines), textile mills in Coimbatore and Tiruppur, cement plants, chemical process industries in Gujarat and Maharashtra, UPS and power conditioning system manufacturers, and renewable energy inverter assembly facilities. The DIN 3 knife blade format ensures compatibility with standard imported and locally fabricated fuse holders used in Indian panel building practice.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — supplying genuine Eaton Bussmann fuses with full traceability
- 100% genuine products supplied with manufacturer warranty and documentation
- Pan-India delivery to all major industrial cities and tier-2 locations
- WhatsApp technical support for application selection, cross-references, and I²t coordination queries
- Bulk and project pricing available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and bus bar adapters (DIN 43620 DIN 3 compatible)
- Eaton Bussmann 170M Series lower amperage variants for drive input/output coordination
- Eaton Bussmann fuse monitoring and blown-fuse indication relay modules
- DIN 3 knife blade fuse carrier rails and mounting hardware
- Eaton Bussmann 170M Series Class gR fuses for combined overload and short-circuit semiconductor protection where applicable
- Surge protection devices and DC bus capacitor banks for VFD panel assemblies
Frequently Asked Questions
What is the difference between Class aR and Class gR fuses, and which applies to the 170M6814D?
Class aR fuses are designed to protect semiconductors only against short-circuit currents — they operate within a defined current range above a threshold and do not provide overload protection. Class gR fuses offer full-range protection covering both overload and short-circuit conditions. The 170M6814D is a Class aR fuse, meaning it must be used in conjunction with other protective devices (such as circuit breakers or overload relays) that handle the overload region. This is standard practice in VFD and converter protection schemes.
Is the 170M6814D suitable for DC bus protection in VFD and inverter applications?
Yes. The Eaton Bussmann 170M Series is specifically designed for DC common bus and DC link protection in variable frequency drives, active rectifiers, and inverter systems. The high-speed clearing characteristic of Class aR ensures that fault energy is interrupted before IGBT or diode junctions are destroyed. Always verify that the fuse I²t let-through value is below the I²t withstand rating stated in the semiconductor module’s datasheet when making the final selection.
What fuse holder is compatible with the 170M6814D knife blade format?
The 170M6814D is built to the DIN 43620 DIN 3 format with standard knife blade contacts. It is compatible with Eaton Bussmann DIN 3 fuse holders and bus bar mounting systems designed for this body size. Third-party DIN 43620 DIN 3 fuse carriers from other manufacturers may also be mechanically compatible, but always verify current rating, voltage rating, and contact material suitability before use. Contact Shansen Enterprises for holder recommendations specific to your panel layout.
How does the Dual Indicator Type D on the 170M6814D work?
The Dual Indicator (Type D) provides two independent visual indication flags that pop out when the fuse operates. This allows maintenance personnel to confirm a blown fuse quickly during panel inspection without the need for a multimeter, reducing troubleshooting time in production environments. Some panel designs also wire these indicators to remote blown-fuse alarm circuits using compatible indicator microswitch accessories — consult the 170M Series datasheet for electrical specifications of the indicator contacts.
Is the 170M6814D IEC certified and acceptable for use in Indian industrial installations?
Yes. The 170M6814D is IEC rated and complies with IEC 60269-4, the international standard governing semiconductor fuses. It is also CE marked and RoHS compliant. IEC 60269-4 compliance is recognized by electrical inspectors and certifying bodies across India, and the fuse is accepted in panel designs submitted for BIS-approved or third-party certified industrial systems. Always retain the product documentation supplied by Shansen Enterprises for inclusion in your panel certification file.
How do I order the Eaton Bussmann 170M6814D from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M6814D directly from Shansen Enterprises by clicking the WhatsApp button on this page or by sending an email inquiry with your catalog number, required quantity, and delivery location. Our team in Coimbatore will confirm availability, lead time, and pricing — including bulk or project rates for panel builders and OEMs — and arrange pan-India delivery to your site or warehouse.
