Description
Overview
The Eaton Bussmann 170M1571D is a 250 A, 690 V AC high speed Class aR semiconductor protection fuse from the proven 170M Series, engineered to protect IGBTs, thyristors, diodes, and other power semiconductors in high-energy industrial systems. Constructed to DIN 43620 DIN 000 format with knife blade contacts, this fuse provides a 200 kA breaking capacity with ultra-fast clearing times that conventional fuses cannot match. It is IEC 60269-4 rated, CE marked, and RoHS compliant, making it a reliable choice for modern industrial and renewable energy installations across India.
Key Features
- 250 A Amperage Rating — sized for medium to high current semiconductor protection circuits in industrial drives
- 690 V AC Rated Voltage — compatible with standard three-phase 690 V industrial power distribution systems
- 200 kA Interrupt Rating — exceptional breaking capacity ensures safe fault clearance under worst-case short-circuit conditions
- Class aR Semiconductor Fuse — ultra-fast current-limiting action specifically designed to protect semiconductor junctions before damage occurs
- DIN 43620 DIN 000 Format with Knife Blade Contacts — industry-standard square body form factor for direct replacement and easy integration into existing drive panels
- Dual Indicator Type D — provides two-point visual fault indication for quick identification during maintenance and commissioning
- IEC 60269-4 Rated — fully compliant with the international standard for semiconductor protection fuses
- CE Marked and RoHS Compliant — meets European directives and restricts hazardous substances for export-ready panel builds
- Bussmann 170M Series Lineage — backed by Eaton’s global engineering and quality manufacturing standards trusted in Indian and international markets
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M1571D |
| Series | Bussmann 170M |
| Amperage Rating | 250 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 000 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 Eaton Bussmann 170M1571D is the preferred choice for engineers protecting IGBT modules, thyristors, SCRs, and diode bridges in variable frequency drives (VFDs), soft starters, DC common bus systems, and power converters rated up to 690 V AC. The Class aR rating confirms this fuse is purpose-built exclusively for semiconductor protection — it operates in the partial range above the full breaking capacity threshold and clears faults faster than any gG or gR general-purpose fuse, preventing irreversible junction damage in power semiconductors.
In Indian industrial environments — including textile mills, cement plants, steel rolling mills, water treatment facilities, and automotive manufacturing plants in and around Coimbatore, Chennai, Pune, and Ahmedabad — DC bus and drive panel builders rely on the 170M Series for consistent, repeatable protection performance. The DIN 43620 DIN 000 knife blade format ensures straightforward installation in standard semiconductor fuse holders and bus bar mounted assemblies without panel redesign.
When selecting fuses for your semiconductor protection application, always verify that the fuse I²t let-through value is lower than the semiconductor’s I²t withstand rating, and that the voltage rating meets or exceeds your DC bus voltage as applicable. Shansen Enterprises can assist with application-specific fuse selection for your panel build requirements.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — guaranteed genuine product sourcing
- 100% genuine Eaton Bussmann products with full manufacturer warranty
- Pan-India delivery to all major industrial cities and tier-2 locations
- WhatsApp technical support for fuse selection, replacement, and application queries
- Bulk pricing and project quotations for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and base assemblies (DIN 43620 compatible)
- Eaton Bussmann 170M Series knife blade contact fuse carriers
- Eaton Bussmann semiconductor fuse monitoring and indication accessories
- Complementary 170M Series fuses in adjacent current ratings (200 A, 315 A) for coordinated protection
- Eaton drive panel bus bar mounting hardware and insulation kits
- Eaton Bussmann fuse blocks for DIN 000 format semiconductor fuses
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M1571D fuse?
Class aR (associated range) is an IEC fuse classification specifically for semiconductor protection. Unlike gG general-purpose fuses, a Class aR fuse is designed to clear only high-level short-circuit currents that would otherwise destroy semiconductor junctions. The 170M1571D operates with ultra-fast clearing speeds in the overload and short-circuit range that is critical for protecting IGBTs, thyristors, and diodes — making it unsuitable as a standalone overcurrent device for cables or motors without additional protective coordination.
Is the 170M1571D suitable for DC bus protection in VFD panels?
Yes. The Eaton Bussmann 170M1571D is explicitly rated for DC common bus and DC drive applications. When using this fuse on a DC bus, always verify the DC voltage rating of the specific fuse against your bus voltage — Eaton’s datasheet for the 170M1571D provides DC voltage derating information. For assistance with DC bus fuse selection for your VFD panel in India, contact Shansen Enterprises with your DC bus voltage and drive ratings.
What fuse holder is compatible with the Eaton Bussmann 170M1571D?
The 170M1571D is built to DIN 43620 DIN 000 format with knife blade contacts. It is compatible with Eaton Bussmann DIN 000 fuse holders, base assemblies, and bus bar mounted fuse carriers designed for the 170M Series square body format. Shansen Enterprises can recommend and supply matching fuse holders along with the fuse to ensure a complete, code-compliant assembly.
What is the interrupt rating of the 170M1571D and why does it matter?
The Eaton Bussmann 170M1571D carries a 200 kA interrupt rating, meaning it can safely clear short-circuit currents up to 200 kA without rupturing or causing collateral damage to the panel. In industrial plants with high available fault current — common in large Indian manufacturing facilities with heavy transformer feeds — a 200 kA rated fuse ensures that protection remains reliable even under worst-case fault conditions.
How does the Dual Indicator Type D on the 170M1571D work?
The Dual Indicator (Type D) on the 170M1571D provides two visible striker indicators that activate when the fuse operates. This dual indicator design allows maintenance technicians to visually confirm fuse operation from multiple angles within a panel enclosure, speeding up fault diagnosis and reducing downtime. It is particularly useful in densely packed drive panels where single-point indicators may be obstructed.
How do I order the Eaton Bussmann 170M1571D from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M1571D directly from Shansen Enterprises by clicking the WhatsApp button on this page or emailing us through the contact form. Share your required quantity, delivery location, and any application details, and our team will respond with pricing, availability, and lead time. We serve panel builders, OEMs, and industrial buyers across Coimbatore and all of India with genuine Eaton Bussmann products and fast dispatch.
