Description
Overview
The Eaton Bussmann 170M6452 is a high speed square body semiconductor protection fuse rated at 630 A and 690 V AC, belonging to the globally recognized Bussmann 170M Series. Built to IEC 60269-4 standards with a Class aR characteristic, it provides ultra-fast current-limiting action to protect sensitive power semiconductor devices from destructive fault currents. With a 200 kA interrupt rating and CE/RoHS/UL/CSA compliance, this fuse is a trusted choice for engineers specifying protection in power electronics panels across India and worldwide.
Key Features
- 630 A Current Rating — handles high continuous load currents typical in industrial drive systems
- 690 V AC Rated Voltage — suitable for standard three-phase industrial power systems up to 690 V
- 200 kA Breaking Capacity — provides robust protection against severe short-circuit fault currents
- Class aR Characteristic — fast-acting semiconductor protection fuse class per IEC 60269-4, optimized for protecting rectifier and thyristor devices
- Square Body Construction — compact, standardized form factor for easy panel integration and replacement
- No Integral Fuse Indicator — clean design for installations where external indication or monitoring is used
- CE Marked and RoHS Compliant — meets European safety and environmental directives for global deployments
- IEC Rated, UL and CSA Listed — multi-standard certification ensures acceptance across international and Indian projects
- Part of Bussmann 170M Series — broad family with consistent footprints enabling easy upgrades and spares management
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M6452 |
| Series | Bussmann 170M |
| Amperage Rating | 630 A |
| Rated Voltage AC | 690 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Construction | Square body format |
| Fuse Indicator | None |
| Standard | IEC 60269-4 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated, UL Listed, CSA Listed |
| Application | Semiconductor protection, DC common bus, DC drives, power converters, rectifiers, VFDs, soft starters, thyristor stacks |
Applications & Selection Guide
The Eaton Bussmann 170M6452 is specifically engineered for semiconductor protection in high-power industrial drive systems. Its Class aR rating means it is designed exclusively for back-up protection of power semiconductors — including IGBTs, thyristors, SCRs, and diode rectifier bridges — where conventional fuses are too slow to prevent device destruction during fault conditions. Typical installations include variable frequency drives (VFDs), DC common bus systems, DC motor drives, soft starters, power converters, and large rectifier assemblies operating on 690 V three-phase supplies.
When selecting this fuse, engineers should verify compatibility with the semiconductor device’s I²t let-through value and ensure the fuse’s rated voltage matches or exceeds the system voltage. The 170M Series square body format is widely used in OEM drive panels and MCC (Motor Control Centre) assemblies across Indian industries including steel, cement, petrochemicals, water treatment, and renewable energy installations.
In the Indian market, this fuse is commonly specified by panel builders and drive OEMs in Coimbatore, Chennai, Pune, Ahmedabad, and Mumbai for projects requiring IEC 60269-4 compliance with UL/CSA acceptance for export panels. Shansen Enterprises maintains stock and can advise on selection for your specific semiconductor protection requirements.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — guaranteed genuine product sourcing
- 100% genuine Eaton Bussmann products supplied with full manufacturer warranty
- Pan-India delivery to all major industrial cities and project sites
- WhatsApp technical support for fuse selection, sizing, and compatibility queries
- Competitive bulk pricing available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and fuse bases (square body type)
- Eaton Bussmann 170M Series fuses in other current ratings (e.g., 400 A, 500 A, 800 A) for coordinated protection
- Eaton Bussmann fuse monitoring and blown-fuse indication modules
- Eaton DIN rail and panel-mount fuse carriers compatible with 170M square body format
- Eaton surge protection devices (SPDs) for upstream network protection
- Eaton contactors and circuit breakers for upstream switching coordination
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M6452?
Class aR is a fuse utilization category defined under IEC 60269-4 specifically for the protection of semiconductor devices. Unlike general-purpose fuses, Class aR fuses are designed to clear fault currents extremely rapidly, limiting the energy let-through (I²t) to levels that power semiconductors such as thyristors, SCRs, IGBTs, and diode rectifiers can survive. The 170M6452 provides this fast-acting semiconductor protection at 630 A and 690 V AC.
What is the breaking capacity of the 170M6452 and why does it matter?
The Eaton Bussmann 170M6452 has a breaking capacity (interrupt rating) of 200 kA. This is the maximum prospective fault current the fuse can safely interrupt without rupturing or causing collateral damage. A 200 kA rating ensures the fuse is suitable even in high fault-level industrial installations, providing system safety and compliance with IEC 60269-4 requirements.
Can the 170M6452 be used in DC drive and VFD applications?
Yes. The Eaton Bussmann 170M6452 is specifically listed for use in DC common bus systems, DC drives, variable frequency drives (VFDs), power converters, soft starters, rectifiers, and thyristor stacks. Its fast-acting Class aR characteristic makes it the correct choice for protecting the semiconductor components within these drive systems. Always verify the fuse’s I²t characteristics against the semiconductor manufacturer’s withstand ratings when making your selection.
Is the Eaton Bussmann 170M6452 IEC and UL certified?
Yes. The 170M6452 is IEC Rated per IEC 60269-4, UL Listed, and CSA Listed. It is also CE Marked and RoHS Compliant. This multi-standard certification makes it suitable for both domestic Indian projects requiring IEC compliance and export panel builds where UL or CSA acceptance is needed.
Does the 170M6452 include a built-in fuse indicator?
No, the Eaton Bussmann 170M6452 does not include an integral fuse indicator. If blown-fuse indication is required in your panel design, Eaton offers external fuse monitoring accessories and indicator modules compatible with the 170M Series square body format. Contact Shansen Enterprises to discuss the appropriate indication solution for your application.
How do I order the Eaton Bussmann 170M6452 from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M6452 directly from Shansen Enterprises by clicking the WhatsApp button on this page or sending an email inquiry with your catalog number, required quantity, and delivery location. As an authorized Eaton Channel Partner in Coimbatore, we supply genuine products with full warranty and offer pan-India delivery. For bulk orders or project-based requirements, mention your project details for a customized pricing offer.
