Description
Overview
The Eaton Bussmann 170M6811D belongs to the well-established 170M Series of high speed square body semiconductor fuses, engineered to provide precise and reliable protection for solid-state power electronics operating at 700 A and up to 690 V AC. Its DIN 43620 DIN 3 knife blade construction ensures compatibility with standard semiconductor fuse holders and bus bar mounting systems widely used in Indian industrial panel designs. With a 200 kA breaking capacity and IEC 60269-4 certification, this fuse meets the stringent demands of power conversion equipment manufacturers and panel builders.
Key Features
- 700 A Amperage Rating — handles high continuous current loads typical in heavy industrial drives and converter cabinets
- 690 V AC Rated Voltage — suitable for 415 V and 690 V distribution systems prevalent in Indian industrial installations
- 200 kA Interrupt Rating — provides robust fault current interruption to protect expensive semiconductor devices
- Class aR Rating — fast-acting current-limiting characteristics specifically designed for semiconductor protection, not general-purpose use
- DIN 43620 DIN 3 Format with Knife Blade Contacts — direct replacement compatibility with standard DIN 3 semiconductor fuse holders
- Dual Indicator Type D — dual fuse indicators allow fault detection from multiple panel viewing angles, reducing troubleshooting time
- IEC 60269-4 Compliant — internationally recognized standard ensuring consistent performance in global and Indian OEM applications
- CE Marked and RoHS Compliant — meets European safety and environmental directives, supporting export-oriented panel builders
- Eaton Bussmann 170M Series — a globally trusted platform with proven field reliability in power electronics protection
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6811D |
| Series | Bussmann 170M |
| Amperage Rating | 700 A |
| Voltage Rating (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 170M6811D is the correct choice when protecting high-power semiconductor assemblies such as IGBT modules, SCR/thyristor stacks, diode bridges, and gate-turn-off thyristors in industrial power converters. Its Class aR rating means it is engineered exclusively for semiconductor protection — it operates faster than general-purpose gG or gR fuses and must be selected based on the I²t let-through characteristics of the device being protected. Panel designers should verify that the fuse I²t value is lower than the withstand I²t of the semiconductor at the prospective fault current level.
In India, this fuse is widely specified in variable frequency drives (VFDs), soft starters, DC common bus systems, rectifier panels, and industrial UPS assemblies across sectors including steel, cement, textile, automotive, and chemical processing. The 700 A rating addresses medium-to-large drive systems and converter banks typically found in 11 kV/415 V or 690 V fed motor control centers in Coimbatore, Pune, Ahmedabad, Chennai, and other manufacturing hubs.
When selecting the 170M6811D, confirm the fuse holder accepts DIN 43620 DIN 3 knife blade format and verify the system voltage does not exceed 690 V AC. For DC bus applications, consult the Eaton Bussmann 170M Series DC voltage derating tables or contact Shansen Enterprises for application engineering support specific to your panel design.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full manufacturer backing
- 100% genuine Eaton Bussmann fuses supplied with warranty and traceability
- Pan-India delivery to all major industrial cities and Tier 2 manufacturing hubs
- WhatsApp technical support for fuse selection, cross-referencing, and application queries
- Bulk pricing and project quotations for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series DIN 3 semiconductor fuse holders
- Eaton Bussmann 170M Series knife blade contact fuse bases
- Eaton Bussmann fuse monitoring and indicator accessories for 170M Series
- Eaton Bussmann complementary 170M Series fuses in adjacent current ratings (630 A, 800 A) for system-level coordination
- DIN rail and bus bar mounting hardware compatible with DIN 43620 DIN 3 format
Frequently Asked Questions
What does Class aR mean on the Eaton Bussmann 170M6811D fuse?
Class aR indicates that this fuse is a current-limiting, fast-acting type designed exclusively for the protection of semiconductor devices. Unlike Class gG fuses which protect cables and general circuits, Class aR fuses operate in the current-limiting range to interrupt fault currents before they reach peak values that would destroy IGBT modules, thyristors, or diodes. The 170M6811D must not be used as a general-purpose overcurrent protective device.
Can the 170M6811D be used for DC bus protection in a VFD system?
Yes, the 170M Series is widely applied in DC common bus and DC drive protection. However, the voltage rating for DC applications differs from the 690 V AC rating — you must consult the Eaton Bussmann 170M Series datasheet for the applicable DC voltage derating. Contact Shansen Enterprises with your DC bus voltage and fault current level, and we can confirm the correct catalog number for your application.
What is the significance of the Dual Indicator (Type D) on the 170M6811D?
The Dual Indicator (Type D) means the fuse has two visible trip indicators positioned on the fuse body, allowing maintenance personnel to identify a blown fuse from multiple angles without removing panel covers or accessing restricted areas. This feature reduces downtime by speeding up fault identification in multi-fuse semiconductor protection panels, which is particularly valuable in large drive cabinets and rectifier assemblies.
Is the 170M6811D a direct replacement for other DIN 3 format semiconductor fuses?
The 170M6811D uses the DIN 43620 DIN 3 knife blade format, which is a standardized mounting footprint. It may be dimensionally compatible with fuse holders designed for other DIN 3 format semiconductor fuses, but electrical performance characteristics such as I²t, time-current curves, and voltage ratings must be carefully cross-checked before substitution. Shansen Enterprises can assist with cross-referencing to other brands and confirming application suitability.
What industries in India commonly use the Eaton Bussmann 170M6811D?
In India, this fuse is specified by panel builders and OEMs serving the steel, cement, textile, automotive, petrochemical, and material handling industries. It is used in VFD panels, soft starter assemblies, thyristor-controlled heater panels, industrial rectifiers, and DC motor drive systems. Coimbatore-based textile machinery manufacturers, Pune automotive plants, and Chennai industrial automation integrators are among the typical end users.
How do I order the Eaton Bussmann 170M6811D from Shansen Enterprises?
You can request a quote directly through the WhatsApp button or the email enquiry form on this page. Please mention the catalog number 170M6811D, the quantity required, and your delivery location. Shansen Enterprises serves customers across India from our Coimbatore base and can provide bulk pricing for panel builders and project orders. Our team will respond with availability, pricing, and estimated delivery timeline promptly.
