Description
Overview
The Eaton Bussmann 170M3814D is a high speed square body semiconductor fuse rated at 160 A and 690 V AC, designed to deliver ultra-fast fault clearing for sensitive power semiconductor devices including thyristors, IGBTs, and diodes. Part of the proven Bussmann 170M Series, this fuse conforms to DIN 43620 DIN 1 format with knife blade contacts and features a dual (Type D) fuse indicator for fast visual fault identification. It meets IEC 60269-4 requirements and carries CE and RoHS compliance certifications, making it suitable for demanding industrial drive and converter applications throughout India.
Key Features
- 160 A Current Rating — Provides accurately rated overcurrent protection for semiconductor-based power circuits without nuisance tripping.
- 690 V AC Rated Voltage — Suitable for standard industrial three-phase power distribution systems common across Indian manufacturing facilities.
- 200 kA Interrupt Rating — Exceptional breaking capacity ensures safe and reliable fault interruption under worst-case short-circuit conditions.
- Class aR Fuse — Back-up semiconductor protection class ensures the fuse operates exclusively in the high fault-current range, protecting semiconductor devices that cannot self-protect.
- DIN 43620 DIN 1 Format with Knife Blade Contacts — Industry-standard square body construction ensures direct interchangeability with compatible fuse holders and base assemblies.
- Dual Fuse Indicator (Type D) — Two-sided visual indication allows quick fault detection from multiple viewing angles, reducing panel downtime.
- IEC 60269-4 Compliant — Meets international standards for semiconductor protection fuses, ensuring predictable and verified performance.
- CE Marked and RoHS Compliant — Ready for use in CE-marked equipment and meets European RoHS environmental directives, important for export-oriented Indian manufacturers.
- Bussmann 170M Series Reliability — Backed by Eaton’s global engineering heritage and widely used in industrial drive and converter panels worldwide.
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M3814D |
| Series | Bussmann 170M |
| Amperage Rating | 160 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 1 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 170M3814D is purpose-built for protecting semiconductor switching devices in high-power industrial electronics. Its Class aR rating makes it specifically suited as a back-up fuse where semiconductor devices such as thyristors, SCRs, IGBTs, and diodes are the primary protective element — the fuse intervenes only under high short-circuit currents that would otherwise destroy the semiconductor in microseconds. Typical installations include variable frequency drives (VFDs), soft starters, DC common bus systems, industrial rectifiers, power converters, and thyristor stacks.
In India’s growing industrial automation and heavy manufacturing sectors — including textile machinery in Coimbatore, steel plants, cement mills, and process industries across Tamil Nadu, Maharashtra, and Gujarat — reliable semiconductor fuse protection is critical for reducing unplanned downtime and protecting expensive drive modules. The 170M3814D at 160 A suits medium-power drive and converter assemblies operating on standard 415 V to 690 V three-phase industrial supply.
When selecting a semiconductor fuse, engineers must verify the I²t let-through value of the fuse against the I²t withstand rating of the semiconductor device to ensure coordinated protection. The 170M Series is widely used by panel builders and OEMs for its dimensional consistency with DIN 43620 format holders. For application-specific sizing or cross-referencing with other series, contact Shansen Enterprises for technical support from Coimbatore.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — supplying genuine Eaton Bussmann products across India
- 100% genuine products supplied with manufacturer warranty and traceability
- Pan-India delivery to Tamil Nadu, Maharashtra, Gujarat, Karnataka, Andhra Pradesh, and beyond
- WhatsApp technical support for product selection, cross-referencing, and application queries
- Bulk and project pricing available for panel builders, OEMs, and EPCs
Compatible Products & Accessories
- Eaton Bussmann 170M Series fuse holders and bases (DIN 43620 DIN 1 compatible)
- Eaton Bussmann 170M Series fuses in adjacent current ratings (140 A, 180 A, 200 A)
- Semiconductor fuse monitoring and indication relay modules
- DIN rail and panel-mount fuse base assemblies for square body fuses
- Eaton Bussmann 170H Series and 170E Series high speed fuses for related applications
- Eaton drive protection contactors and semiconductor protection assemblies
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M3814D?
Class aR (current limiting, range-rated) is a fuse classification under IEC 60269-4 specifically for semiconductor protection. Unlike general-purpose fuses, a Class aR fuse is designed to operate only in the upper range of overcurrent — typically at high short-circuit levels — providing extremely fast fault clearing to protect semiconductor devices such as thyristors, diodes, and IGBTs that cannot survive even brief overcurrent events. The 170M3814D at Class aR is a back-up protection device and is normally used in conjunction with the inherent self-protection characteristics of the semiconductor.
What fuse holder or base is compatible with the 170M3814D?
The Eaton Bussmann 170M3814D is built to DIN 43620 DIN 1 format with knife blade contacts. It is compatible with Eaton Bussmann fuse holders and base assemblies designed for DIN 43620 DIN 1 square body fuses. When selecting a holder, confirm the current rating, voltage rating, and physical dimensions match the 170M DIN 1 body. Contact Shansen Enterprises in Coimbatore for holder recommendations specific to your panel design.
Can the 170M3814D be used for DC applications such as DC drives or DC common bus systems?
Yes. The Eaton Bussmann 170M3814D is explicitly listed for DC applications including DC common bus systems, DC drives, rectifiers, and power converters. However, DC voltage ratings may differ from the AC rating of 690 V — always verify the DC voltage rating from the product datasheet or contact Shansen Enterprises for confirmation before applying this fuse in a DC circuit.
What is the significance of the Dual Indicator (Type D) on the 170M3814D?
The Dual Indicator (Type D) on the 170M3814D means the fuse is fitted with two striker or visual indicator pins, one on each end of the fuse body. This allows maintenance technicians to visually confirm a blown fuse from either side of the panel or fuse holder without removing the fuse. In high-density drive panels and converter cabinets common in Indian industrial installations, this feature significantly reduces fault diagnosis time and improves maintenance safety.
Is the Eaton Bussmann 170M3814D approved for use in CE-marked equipment?
Yes. The 170M3814D is CE Marked and RoHS Compliant, and is IEC Rated under IEC 60269-4. This makes it directly suitable for incorporation into CE-marked drive panels, power converter assemblies, and industrial equipment intended for European markets or requiring IEC certification. Indian manufacturers exporting drive panels or converters to Europe frequently specify the 170M Series for this reason.
How do I order the Eaton Bussmann 170M3814D from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M3814D directly from Shansen Enterprises via WhatsApp or email using the contact buttons on this page. Share your required quantity, delivery location, and any project-specific requirements. As an authorized Eaton Channel Partner based in Coimbatore, Shansen Enterprises supplies genuine Eaton Bussmann products with full warranty and offers pan-India delivery. Bulk order pricing is available for panel builders, OEMs, and project contractors.
