Description
Overview
The Eaton Bussmann 170M6020 is a 1800 A, 600 V AC Class aR semiconductor protection fuse belonging to the well-established Bussmann 170M Series. Built in a square body 3/80 format with bolt-in connections, this fuse is engineered to protect thyristors, diodes, IGBTs, and other power semiconductors against damaging overcurrents and short-circuit faults. Its 200 kA breaking capacity and IEC 60269-4 rating make it a trusted choice for demanding industrial power electronics applications across India.
Key Features
- 1800 A Continuous Current Rating — handles heavy-duty semiconductor drive and converter loads without derating concerns
- 600 V AC Rated Voltage — suitable for standard industrial power systems up to 600 V AC
- 200 kA Interrupt Rating — exceptional fault clearing ability protects equipment and personnel in high-fault-level installations
- Class aR Classification — purpose-built for semiconductor protection, providing the fast clearing speeds required to keep semiconductors within their I²t withstand ratings
- Square Body 3/80 Format with Bolt-In Connections — robust mechanical design ensures low contact resistance and easy, reliable installation in busbars and panels
- IEC 60269-4 Compliant — meets international standards for semiconductor fuse links
- CE Marked and RoHS Compliant — ready for use in CE-marked equipment and meets environmental compliance requirements
- UL Recognized — supports projects requiring UL documentation alongside IEC certification
- No Fuse Indicator — compact design without visual indicator, suitable for applications with external monitoring or protection relays
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6020 |
| Series | Bussmann 170M |
| Amperage Rating | 1800 A |
| Rated Voltage AC | 600 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Construction | Square body 3/80 format with bolt-in connections |
| Fuse Indicator | None |
| Standard | IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated, UL Recognized |
| Application | Semiconductor protection, DC common bus, DC drives, power converters, rectifiers, VFDs, soft starters, thyristor stacks |
Applications & Selection Guide
The 170M6020 is specifically selected for protection of high-power semiconductor devices in industrial drive and power conversion systems. At 1800 A and 600 V AC, it is well suited to large DC common bus architectures, multi-drive systems, heavy rectifier banks, and high-current thyristor stacks where the I²t let-through must be tightly controlled to prevent semiconductor failure. The Class aR rating confirms this fuse is optimised exclusively for semiconductor protection — it is not interchangeable with general-purpose gG or gR fuses.
In Indian industries such as steel, aluminium smelting, cement, chemical processing, and large-scale HVAC installations, VFDs and power converters in the megawatt range demand reliable semiconductor fuse protection. The 170M6020’s 200 kA breaking capacity is well matched to high-fault-level MV/LV transformer secondaries commonly found in heavy industry substations across Tamil Nadu, Maharashtra, Gujarat, and other industrial states.
When selecting this fuse, confirm that the equipment manufacturer’s I²t requirement for the semiconductor device is within the fuse’s published clearing I²t at the installation voltage. For DC bus applications, verify the DC voltage rating from the Eaton Bussmann datasheet before installation. Contact Shansen Enterprises in Coimbatore for application engineering support and to confirm suitability for your specific drive or converter design.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full traceability
- 100% genuine Eaton Bussmann products supplied with warranty
- Pan-India delivery to all major industrial cities and tier-2 locations
- WhatsApp technical support for product selection and application queries
- Bulk pricing available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and fuse bases for square body format
- Eaton Bussmann 170M Series fuses in adjacent current ratings (1600 A, 2000 A) for system coordination
- Semiconductor fuse monitoring and blown-fuse indication accessories
- Eaton drive protection fuse blocks and busbar mounting assemblies
- Eaton Bussmann Class aR companion fuses for input and output protection coordination
Frequently Asked Questions
What is the difference between a Class aR fuse and a Class gR fuse for semiconductor protection?
A Class aR fuse, such as the 170M6020, is designed exclusively for the protection of semiconductor devices and will only operate on short-circuit faults above a defined current threshold. It is not intended to provide overload protection. A Class gR fuse provides both overload and short-circuit protection for semiconductor circuits. When the semiconductor manufacturer specifies an aR fuse, only a Class aR type should be used, as substituting a gR fuse may result in incorrect I²t coordination and potential semiconductor damage.
Can the Eaton Bussmann 170M6020 be used on DC bus applications?
The 170M6020 is rated at 600 V AC. For DC common bus and DC drive applications, Eaton Bussmann publishes separate DC voltage ratings for 170M Series fuses which may differ from the AC rating. You must verify the applicable DC voltage rating from the official Eaton Bussmann 170M6020 datasheet or contact Shansen Enterprises in Coimbatore for guidance before installing this fuse in a DC circuit.
What does the 200 kA interrupt rating mean for the 170M6020?
The 200 kA interrupt rating means the 170M6020 is tested and certified to safely clear short-circuit fault currents up to 200 kA without fuse rupture, arc flash, or enclosure damage. This high breaking capacity makes it suitable for installation on the secondary side of large industrial transformers and in high-fault-level switchgear environments commonly found in heavy industries across India.
Does the 170M6020 include a fuse indicator or striker pin?
No. The Eaton Bussmann 170M6020 is supplied without a fuse indicator or striker pin. For applications requiring blown-fuse detection, consider using external current monitoring, protection relays, or selecting an alternative 170M Series variant that includes an indicator option. Contact Shansen Enterprises to check availability of indicator-equipped versions in the same current and voltage rating.
Is the 170M6020 compliant with both IEC and UL standards?
Yes. The 170M6020 is IEC Rated per IEC 60269-4 and is UL Recognized, making it suitable for projects that require dual certification. It is also CE Marked and RoHS Compliant, supporting use in CE-marked equipment and meeting European environmental directives — relevant for Indian exporters supplying equipment to European markets.
How do I order the Eaton Bussmann 170M6020 from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M6020 by clicking the WhatsApp button on this page or by sending an email to Shansen Enterprises with your requirement details including quantity, delivery location, and any project documentation. As an authorized Eaton Channel Partner based in Coimbatore, Tamil Nadu, we supply genuine Eaton Bussmann products with pan-India delivery. Our team will respond with pricing, lead time, and logistics details promptly.
