Description
Overview
The Eaton Bussmann 170M5398 is a high speed square body semiconductor protection fuse rated at 800 A and 1000 V AC, belonging to the widely trusted Bussmann 170M Series. Engineered for Class aR semiconductor protection duty per IEC 60269-4, this fuse provides the ultra-fast current limitation required to safeguard IGBTs, thyristors, diodes, and other sensitive power electronic components. Its robust 2BKN/75 square body construction with bolt-in connections ensures reliable installation and consistent electrical performance in high-current power conversion equipment.
Key Features
- 800 A Continuous Rating — handles high continuous load currents typical in heavy industrial drives and power conversion systems
- 1000 V AC Rated Voltage — suitable for medium-voltage bus architectures and high-voltage DC common bus configurations
- 200 kA Breaking Capacity — delivers exceptional fault current interruption capability to protect downstream semiconductor devices
- Class aR Semiconductor Protection — purpose-built for semiconductor protection duty, offering faster operation than general-purpose fuses
- 2BKN/75 Square Body Format — industry-standard form factor enabling straightforward replacement and cross-compatibility with standard fuse holders and bus bars
- Bolt-In Connections — ensures low-resistance, vibration-resistant electrical connections critical for high-current applications
- IEC 60269-4 Compliant — internationally recognized standard for high-speed fuses used in semiconductor protection
- CE Marked and RoHS Compliant — meets European safety and environmental directives, supporting global project requirements
- No Fuse Indicator — compact design without external striker or indicator, suited for installations with external monitoring or where space is constrained
- Part of Bussmann 170M Series — backed by Eaton’s extensive global support network and proven field reliability across thousands of industrial installations
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M5398 |
| Series | Bussmann 170M |
| Amperage Rating | 800 A |
| Rated Voltage AC | 1000 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Construction | Square body 2BKN/75 format with bolt-in connections |
| Fuse Indicator | None |
| 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 170M5398 is specifically designed for semiconductor protection in high-power industrial systems. Its Class aR rating means it operates in the fast-acting current-limiting region required to prevent destructive energy from reaching sensitive devices such as IGBTs, SCRs, diodes, and MOSFETs. Typical installation points include the AC input or DC output stages of variable frequency drives (VFDs), soft starters, regenerative drives, and three-phase rectifier bridges operating at up to 1000 V AC bus voltages.
In DC common bus architectures — increasingly common in Indian manufacturing and process industries — the 170M5398 provides reliable protection for individual drive modules fed from a shared DC rail. Its 200 kA breaking capacity ensures that even under severe fault conditions the fuse will interrupt before semiconductor junction temperatures reach destructive levels. This makes it an essential protection device in solar inverter farms, industrial UPS systems, traction power supplies, and electrochemical process rectifiers.
Indian industries including automobile manufacturing, steel and metals processing, textile machinery, chemical plants, and data centre UPS installations increasingly rely on Bussmann 170M Series fuses to protect high-value power electronics. When selecting this fuse, verify that the fuse holder or bus bar assembly is rated for the 2BKN/75 body size and that the application voltage does not exceed 1000 V AC. For DC applications, consult Eaton’s derating guidelines or contact Shansen Enterprises for application-specific technical support.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore with direct supply chain access
- 100% genuine Eaton Bussmann products supplied with manufacturer warranty
- Pan-India delivery to all major industrial cities and project sites
- WhatsApp technical support for product selection, cross-reference, and application 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 mounting assemblies (2BKN/75 compatible)
- Eaton Bussmann 170M Series fuses in adjacent amperage ratings (630 A, 700 A, 900 A, 1000 A) for coordinated protection
- Eaton Bussmann fuse monitoring and blown-fuse indication accessories
- Eaton DIN rail and panel-mount fuse base assemblies for 170M Series
- Copper bus bars and flexible connectors rated for 800 A bolt-in terminations
- Eaton coordinated circuit breakers and contactors for upstream protection
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M5398?
Class aR denotes a semiconductor protection fuse class defined under IEC 60269-4. Unlike general-purpose Class gG fuses, Class aR fuses are optimized to operate only in the current-limiting range — they interrupt high fault currents extremely quickly to prevent thermal damage to semiconductors. The 170M5398 will not operate on overloads below its minimum breaking current, so it must always be used alongside a suitable upstream protective device such as a circuit breaker or Class gG fuse that covers the overload range.
Can the Eaton Bussmann 170M5398 be used on DC circuits?
The 170M5398 carries a published AC voltage rating of 1000 V. Eaton Bussmann 170M Series fuses can in many cases be applied on DC circuits, but the permissible DC voltage rating is typically lower than the AC rating and depends on the specific circuit configuration and time constant. For DC common bus or DC drive applications, consult Eaton’s application guidelines or contact Shansen Enterprises so we can confirm the correct DC voltage rating and recommend the appropriate catalog number if a DC-rated variant is required.
What is the body size and mounting format of the 170M5398?
The 170M5398 uses the 2BKN/75 square body format with bolt-in connections. This is a standard high-speed fuse body size widely used in industrial semiconductor protection fuse holders and bus bar assemblies. Before ordering, confirm that your existing fuse holder or mounting system is rated for the 2BKN/75 body dimensions and that the bolt-in terminal arrangement matches your bus bar drilling pattern.
Does the Eaton Bussmann 170M5398 include a fuse indicator or striker?
No, the 170M5398 does not include a fuse indicator or striker pin. For applications where blown-fuse detection is required, Eaton offers separate external fuse monitoring accessories compatible with the 170M Series. Alternatively, electronic monitoring relays can be wired across the fuse to detect voltage presence and signal a blown condition to the control system.
Which industries in India commonly use the Eaton Bussmann 170M Series fuses?
The Bussmann 170M Series is widely used across Indian industries wherever high-power semiconductor equipment requires reliable protection. Common sectors include automobile and ancillary manufacturing (VFDs and servo drives), steel and aluminium processing (large rectifiers and DC drives), textile machinery (spindle drives and soft starters), chemical and petrochemical plants (pump and compressor drives), renewable energy (solar inverter protection), and industrial UPS and data centre power systems. Shansen Enterprises supplies these fuses to customers across Tamil Nadu, Karnataka, Andhra Pradesh, Maharashtra, Gujarat, and other states throughout India.
How do I order the Eaton Bussmann 170M5398 from Shansen Enterprises?
You can request a quote directly from Shansen Enterprises by clicking the WhatsApp button on this page or by sending an email through the enquiry form. Please mention the catalog number 170M5398, your required quantity, and your delivery location. Our team in Coimbatore will respond promptly with pricing, availability, and estimated delivery timeline. For bulk orders, project requirements, or technical assistance with fuse selection, our engineers are available via WhatsApp to support you through the procurement process.
