Description
Overview
The Eaton Bussmann 170M6810D belongs to the renowned 170M Series of high speed square body semiconductor fuses, engineered to provide ultra-fast overcurrent protection for power semiconductor devices. Rated at 630 A and 690 V AC with a 200 kA breaking capacity, this fuse is built to DIN 43620 DIN 3 format standards, ensuring drop-in compatibility with standard DIN fuse holders widely used across Indian industrial panels and drives installations. Its Class aR characteristic delivers the rapid current limitation needed to protect thyristors, IGBTs, diodes, and other semiconductor components before they sustain damage.
Key Features
- 630 A Current Rating — handles high load currents in heavy-duty semiconductor drive applications without nuisance operation
- 690 V AC Rated Voltage — suitable for standard three-phase 415 V and 690 V industrial power systems common across Indian manufacturing plants
- 200 kA Interrupt Rating — exceptional breaking capacity ensures safe fault clearance even on high prospective short-circuit current systems
- Class aR Rating — optimised for back-up semiconductor protection, providing the fast response needed to protect expensive power electronics before thermal damage occurs
- DIN 43620 DIN 3 Format with Knife Blade Contacts — standardised square body construction ensures compatibility with existing DIN fuse bases and reduces installation complexity
- Dual Fuse Indicator Type D — two independent visual indicators allow instant blown-fuse detection from multiple viewing angles, reducing panel downtime
- IEC 60269-4 Compliant — fully rated to the international standard governing high speed fuses for semiconductor protection
- CE Marked and RoHS Compliant — meets European safety directives and restricts hazardous substances, supporting export-oriented OEM compliance requirements
- Part of the Bussmann 170M Series — a globally recognised family with proven field reliability in drives, converters, and power electronics across decades of industrial service
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6810D |
| Series | Bussmann 170M |
| Amperage Rating | 630 A |
| Rated Voltage AC | 690 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Fuse Type | High Speed Square Body |
| Construction | DIN 43620 DIN 3 format with 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 170M6810D is the preferred choice for engineers specifying semiconductor protection fuses in high-power drives and converter panels. Its Class aR characteristic means it is designed specifically for partial-range protection of semiconductor devices — it will clear faults fast enough to protect thyristors and IGBTs that would otherwise be destroyed within microseconds of a short-circuit event. At 630 A and 690 V, this fuse is well matched for large variable frequency drives (VFDs), soft starters, active front-end rectifiers, and thyristor stacks operating on 415 V or 690 V three-phase supplies across Indian industrial facilities.
In DC common bus architectures — widely used in multi-drive systems in textile mills, cement plants, steel processing lines, and automotive manufacturing in Tamil Nadu and across India — the 170M6810D provides reliable individual drive or converter protection. The DIN 43620 DIN 3 knife blade format ensures compatibility with standard panel-mount fuse holders, simplifying retrofits and new panel builds. Engineers should always verify I²t let-through values against the semiconductor device’s rated withstand capability when finalising fuse selection.
Indian panel builders, OEMs, and system integrators working on export projects will particularly value the CE marking and RoHS compliance, which support CE declaration of conformity for complete assemblies. The dual Type D fuse indicator simplifies maintenance routines in large installations where rapid fault identification reduces costly production downtime. Shansen Enterprises can assist with fuse-to-semiconductor coordination studies and matching fuse holder selection for this series.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner based 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, coordination queries, and replacement guidance
- Competitive bulk pricing for panel builders, OEMs, and system integrators
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and fuse bases (DIN 43620 DIN 3 compatible)
- Eaton Bussmann 170M Series fuses in alternate current ratings (e.g., 400 A, 500 A, 800 A) for system coordination
- DIN 3 knife blade contact fuse carriers and bus bar mounting hardware
- Semiconductor protection fuses for individual thyristor and diode arm protection within the same panel
- Eaton drives and soft starter protection fuse sets for complete panel BOM supply
Frequently Asked Questions
What does Class aR mean on the Eaton Bussmann 170M6810D?
Class aR designates a fuse designed for partial-range protection of semiconductor devices. Unlike general-purpose fuses, an aR fuse is optimised to clear only high-level fault currents — specifically those that would damage the semiconductor — at extremely high speed. It is typically used in combination with other protective devices such as circuit breakers to cover the full overload range. For the 170M6810D, this means it will react fast enough to protect thyristors, IGBTs, and diodes from short-circuit damage while leaving normal overcurrent events to upstream protective devices.
Is the 170M6810D suitable for use on Indian 415 V three-phase power systems?
Yes. The 170M6810D is rated at 690 V AC, which means it is fully suitable for use on standard Indian 415 V three-phase (line-to-line) systems as well as 690 V systems. Using a fuse rated at a higher voltage than the system voltage is acceptable practice and provides an additional safety margin. Always confirm the prospective short-circuit current at the installation point does not exceed the 200 kA interrupt rating of this fuse.
What is the interrupt rating of the 170M6810D and why does it matter?
The 170M6810D has an interrupt rating of 200 kA, which is the maximum prospective short-circuit current the fuse can safely clear without rupture or hazard. This is a critical parameter when installing fuses on systems fed from large transformers or busbars with high available fault current. In most Indian industrial facilities, available fault levels rarely exceed 50–65 kA at distribution panels, so the 200 kA rating of this fuse provides a substantial safety margin. Always verify the installation’s prospective short-circuit current against this rating during design.
What type of fuse holder or fuse base is compatible with the 170M6810D?
The 170M6810D is built to DIN 43620 DIN 3 format with knife blade contacts, which means it requires a DIN 3 compatible fuse holder or fuse base. Eaton Bussmann offers a range of matching fuse carriers and bus bar mounting bases designed specifically for the 170M Series. Shansen Enterprises can supply the appropriate fuse holders alongside the fuse to ensure a complete, compatible assembly. Contact us with your panel layout details for a matched recommendation.
What does the Dual Indicator Type D on the 170M6810D indicate?
The Dual Indicator (Type D) means the fuse body is fitted with two independent striker or visual indicator pins positioned on the fuse to be visible from multiple angles. When the fuse operates (blows), both indicators are triggered, giving a clear mechanical signal that the fuse has cleared a fault. This dual arrangement is particularly useful in large panels or busbar installations where visual inspection from a single direction may be obstructed, helping maintenance teams quickly identify the blown fuse and reduce panel downtime.
How do I order the Eaton Bussmann 170M6810D from Shansen Enterprises?
Ordering the Eaton Bussmann 170M6810D from Shansen Enterprises is straightforward. You can reach us via WhatsApp or email using the contact buttons on this page — simply share the catalog number 170M6810D, the required quantity, and your delivery location anywhere in India. Our team will respond promptly with availability, lead time, and pricing. For bulk orders or panel builder requirements, we can discuss volume pricing and scheduled delivery. Shansen Enterprises is an authorized Eaton channel partner in Coimbatore, ensuring you receive 100% genuine product with full documentation.
