Description
Overview
The Eaton Bussmann 170M6416 is a 1250 A, 690 V AC high speed square body semiconductor fuse rated Class aR to IEC 60269-4, delivering a 200 kA interrupt rating to protect sensitive semiconductor components in high-power industrial drives and converters. Part of Eaton’s globally trusted Bussmann 170M Series, this fuse features a robust 3BN/50 square body format with bolt-in connections for straightforward panel integration. It carries CE marking and RoHS compliance, making it suitable for both Indian industrial installations and export-oriented equipment manufacturers.
Key Features
- 1250 A Current Rating — handles high continuous load currents typical of large drive and converter applications
- 690 V AC Rated Voltage — compatible with standard 660/690 V industrial power systems widely used across India
- 200 kA Interrupt Rating — provides maximum fault current protection, safeguarding expensive semiconductor devices and downstream equipment
- Class aR Rating — designed specifically for semiconductor protection, providing fast-acting response to limit I²t energy through the protected device
- IEC 60269-4 Compliant — meets international standards for semiconductor fuse performance and interchangeability
- 3BN/50 Square Body Format with Bolt-In Connections — ensures mechanical stability and low contact resistance in heavy-duty panel builds
- CE Marked and RoHS Compliant — meets European and global environmental and safety directives, supporting export-ready panel designs
- IEC Rated and UL/CSA Listed — dual certification supports use in both international and North American standard equipment
- No Fuse Indicator — simplifies fuse body design for installations where remote indication is not required
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6416 |
| Series | Bussmann 170M |
| Amperage Rating | 1250 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 | Square body 3BN/50 format with bolt-in connections |
| Fuse Indicator | None |
| Standard | IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated, UL/CSA Listed |
| Application | Semiconductor protection, DC common bus, DC drives, power converters, rectifiers, VFDs, soft starters, thyristor stacks |
Applications & Selection Guide
The 170M6416 is the preferred choice for protecting high-power semiconductor assemblies in industrial drive panels operating at 690 V AC. Its 1250 A rating makes it well-suited for large variable frequency drives (VFDs), DC common bus systems, thyristor-controlled rectifiers, and heavy-duty soft starters used in industries such as steel, cement, petrochemicals, paper, and water treatment — all sectors with significant presence in Tamil Nadu and across India.
The Class aR designation means this fuse is optimised exclusively for semiconductor protection. Unlike general-purpose gG fuses, an aR fuse operates in the upper current range only, relying on the semiconductor device’s own overload capability for low-level overcurrents and providing extremely fast interruption during short-circuit conditions to limit the I²t energy that reaches the diode, thyristor, or IGBT. Engineers must always verify that the fuse’s I²t let-through value is less than the I²t withstand rating of the protected semiconductor.
Panel builders and OEMs in Coimbatore, Chennai, Pune, and other Indian industrial hubs specifying equipment for 660/690 V systems will find the 170M6416 a reliable, standards-compliant solution. For DC bus protection applications, consult the Eaton Bussmann selection guide or contact Shansen Enterprises for application-specific sizing assistance.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — guaranteed genuine products with full manufacturer backing
- 100% genuine Eaton Bussmann fuses with warranty — no counterfeit risk
- Pan-India delivery — prompt dispatch to Tamil Nadu, Maharashtra, Gujarat, Karnataka, and all states
- WhatsApp technical support — quick answers on fuse sizing, I²t coordination, and compatible accessories
- Bulk pricing for panel builders and OEMs — competitive rates on project quantities
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and fuse blocks compatible with 3BN/50 format
- Eaton Bussmann 170M Series fuse links in adjacent current ratings (1000 A, 1100 A) for drive panel coordination
- Eaton Bussmann striker-type fuse indicators and auxiliary microswitch trip units for remote signalling
- Eaton Bussmann DIN rail and panel-mount fuse bases for 170M Series square body fuses
- Eaton surge protection devices (SPDs) for upstream network protection in converter panels
- Eaton contactors and circuit breakers for upstream isolation in VFD and drive panels
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M6416?
Class aR (semiconductor fuse, restricted range) means the fuse is rated to interrupt fault currents only in the upper portion of its operating range, specifically to protect semiconductor devices such as diodes, thyristors, and IGBTs. Unlike Class gG general-purpose fuses, an aR fuse does not provide overload protection at low overcurrents — the semiconductor device must handle those itself. The 170M6416 delivers extremely fast operation during short-circuit faults to limit the I²t energy let-through to a value below the semiconductor’s own I²t withstand rating, preventing device destruction.
Is the 170M6416 suitable for DC bus and DC drive applications?
Yes. The Eaton Bussmann 170M6416 is explicitly listed for DC common bus and DC drive applications. However, for DC voltage use, always consult the Eaton Bussmann 170M Series datasheet for the applicable DC voltage rating, as DC interrupt ratings and permissible voltages may differ from the AC rating. Contact Shansen Enterprises for application-specific guidance on DC bus fuse selection.
What is the breaking capacity of the 170M6416 and why does it matter?
The 170M6416 has a breaking capacity of 200 kA. This means it is rated to safely interrupt fault currents up to 200 kA without rupture, fire, or dangerous arc flash — protecting both the panel and personnel. In large industrial installations fed from high-capacity transformers or connected to stiff grids, prospective short-circuit currents can be extremely high. A 200 kA rated fuse ensures protection integrity even under worst-case fault conditions.
Can the 170M6416 be used in panels built to Indian electrical standards?
Yes. The 170M6416 is IEC 60269-4 compliant and CE marked, aligning with the IEC-based standards referenced in Indian electrical installation codes. Indian industrial panels operating at 660 V or 690 V systems can use this fuse for semiconductor and drive protection. UL/CSA listing additionally supports its use in export panels destined for North American markets. Shansen Enterprises in Coimbatore regularly supplies this series to panel builders and EPC contractors across India.
Does the 170M6416 include a fuse condition indicator?
No, the 170M6416 does not include a built-in fuse indicator. If your application requires visual blown-fuse indication or remote microswitch signalling for control panel integration, Eaton Bussmann offers optional striker-pin indicators and auxiliary trip accessories compatible with the 170M Series. Contact Shansen Enterprises to identify the correct indicator accessory for your panel design.
How do I order the Eaton Bussmann 170M6416 from Shansen Enterprises?
You can request a quote directly from Shansen Enterprises using the WhatsApp or email buttons on this page. Please mention the catalog number 170M6416, required quantity, and your delivery location in India. Our team in Coimbatore will respond promptly with pricing, availability, and estimated delivery lead time. For bulk orders or ongoing project requirements, ask about our OEM and panel builder pricing programmes.
