Description
Overview
The Eaton Bussmann 170M1566D belongs to the industry-trusted 170M Series of high speed square body semiconductor fuses, engineered to provide precise, ultra-fast overcurrent protection for silicon-based power electronics. Rated 80 A at 690 V AC with a 200 kA breaking capacity, this fuse complies with IEC 60269-4 and uses the DIN 43620 DIN 000 format with knife blade contacts for secure, low-resistance installation. Its dual fuse indicator (Type D) enables quick visual and remote fault detection, minimising downtime in demanding industrial power systems.
Key Features
- 80 A Current Rating — precisely matched for semiconductor protection in medium-power drive and converter assemblies
- 690 V AC Voltage Rating — suitable for standard European and Indian industrial supply voltages up to 690 V
- 200 kA Interrupt Rating — exceptional breaking capacity ensures safe fault clearing even under high prospective short-circuit currents
- Class aR Fuse — range-of-action fuse optimised exclusively for semiconductor protection with faster I²t characteristics than general-purpose types
- DIN 43620 DIN 000 Format with Knife Blade Contacts — internationally standardised body ensures drop-in compatibility with DIN 000 fuse holders and bus bar systems
- Dual Indicator Type D — provides both visual blown indicator and remote signalling capability for panel monitoring and automation integration
- IEC 60269-4 Compliant — independently rated to the global standard for semiconductor fuses, ensuring design confidence
- CE Marked and RoHS Compliant — meets European directives for safety, electromagnetic compatibility, and restriction of hazardous substances
- 170M Series Reliability — part of Eaton Bussmann’s globally recognised high speed fuse platform used across power electronics industries worldwide
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M1566D |
| Series | Bussmann 170M |
| Amperage Rating | 80 A |
| Voltage Rating (AC) | 690 V |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| Fuse Class | Class aR |
| Fuse Type | High Speed Square Body |
| Construction / Format | DIN 43620 DIN 000 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 170M1566D is the right choice when protecting power semiconductor devices — IGBTs, SCRs, diodes, and thyristors — in medium-voltage industrial drives and converter systems operating on 690 V AC supplies. Its Class aR rating means it is purpose-built for semiconductor protection only; it clears faults at current levels that would destroy silicon junctions before a standard gG or gR fuse could respond. Engineers specifying fuses for DC common bus topologies, multi-axis servo drives, or active front-end rectifiers should verify that the fuse I²t let-through value is lower than the semiconductor’s withstand I²t — the 170M1566D’s 200 kA breaking capacity and tight aR characteristic make this straightforward to validate.
In the Indian industrial context, this fuse is widely used in sectors including steel and metals processing, textile machinery (particularly in Coimbatore’s spinning and weaving industry), paper and pulp, chemical processing, water treatment, and renewable energy inverter panels. Panel builders assembling VFD control panels, soft starter assemblies, and DC bus cabinets for OEM and EPC projects across India rely on the 170M Series for its consistent I²t performance and global type-test certifications. The DIN 000 knife blade format allows direct mounting into widely available DIN fuse bases without adapter hardware.
When selecting this fuse, confirm that the upstream supply short-circuit level does not exceed 200 kA, that the ambient temperature correction factor is applied for enclosures above 40 °C, and that the fuse holder torque specification for knife blade contacts is observed. If a remote indication output is required for PLC or SCADA integration, the Type D dual indicator on this catalog number is already equipped for that function — no additional accessory indicator is needed.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full manufacturer traceability
- 100% genuine Eaton Bussmann fuses with warranty — no grey market or counterfeit risk
- Pan-India delivery — orders fulfilled to all major industrial cities and tier-2 locations
- WhatsApp technical support — get application guidance, cross-reference help, and documentation fast
- Bulk pricing for panel builders, OEMs, and EPC contractors — contact us for project quantity quotes
Compatible Products & Accessories
- DIN 000 knife blade fuse holders compatible with DIN 43620 format
- Eaton Bussmann 170M Series fuse holders and bus bar mounting bases
- Remote indicator wiring accessories for Type D dual indicator
- Eaton Bussmann 170M Series fuses in adjacent current ratings (63 A, 100 A, 125 A) for design grading
- Eaton semiconductor fuse coordination software for I²t verification
- DIN rail and panel mounting hardware for 000-size fuse assemblies
Frequently Asked Questions
What does the Class aR rating mean for the 170M1566D?
Class aR (range-of-action for semiconductor protection) means the fuse is designed to operate only in the overload and short-circuit range specifically harmful to semiconductor devices. Unlike Class gG fuses that provide full-range overcurrent protection, an aR fuse clears faults extremely quickly at high overcurrents to limit the energy (I²t) let-through to a value below the semiconductor’s damage threshold. The 170M1566D must always be used alongside a backup protection device — such as a circuit breaker or gG fuse — that handles overloads and lower-level faults outside the aR operating range.
Is the 170M1566D suitable for DC applications such as common bus drives?
Yes. The 170M1566D is explicitly listed for DC common bus, DC drives, rectifiers, and thyristor stacks. When applying any AC-rated fuse on DC circuits, engineers must verify the manufacturer’s published DC voltage de-rating — DC arc extinction is more demanding than AC arc extinction due to the absence of a natural current zero crossing. Refer to the Eaton Bussmann 170M Series datasheet for the specific DC voltage rating applicable to this catalog number before use in DC bus applications.
What is the significance of the Dual Indicator Type D on this fuse?
The Type D dual indicator on the 170M1566D provides two simultaneous blown-fuse signals: a visual pop-up flag that is visible on the front of the fuse for local inspection, and an electrical micro-switch contact output that can be wired to a PLC input, relay, or SCADA system for remote fault annunciation. This is particularly valuable in enclosed panels and motor control centres where direct visual inspection of the fuse is not convenient during operation, allowing maintenance teams in Indian industrial plants to detect a blown fuse without opening the panel door.
Can the 170M1566D replace other DIN 000 format semiconductor fuses from other manufacturers?
Physical interchangeability with DIN 000 knife blade holders is generally possible since the body dimensions follow DIN 43620. However, direct electrical substitution requires that the replacement fuse’s I²t let-through, time-current characteristic, and voltage rating match or are more conservative than the original fuse to maintain semiconductor protection coordination. Always cross-reference using the Eaton Bussmann selection guide or contact Shansen Enterprises for a verified cross-reference before substituting fuses in a live protection scheme.
What industries in India commonly use the Eaton Bussmann 170M1566D?
The 170M1566D is used across a wide range of power electronics-intensive industries in India including textile machinery (spinning mills and weaving units, particularly around Coimbatore), steel rolling mills, paper and pulp plants, chemical and petrochemical facilities, water and wastewater treatment pump drives, wind and solar inverter assemblies, and automotive manufacturing lines. Panel builders and system integrators across Chennai, Pune, Ahmedabad, Hyderabad, and Coimbatore regularly specify 170M Series fuses for VFD panels, soft starter panels, and rectifier assemblies.
How do I order the Eaton Bussmann 170M1566D from Shansen Enterprises?
You can request a quote directly from Shansen Enterprises by clicking the WhatsApp button on this page or using the email enquiry form. Please mention the catalog number 170M1566D and your required quantity. Our team in Coimbatore will respond with pricing, lead time, and delivery options for your location across India. For bulk orders or project requirements, we offer competitive pricing for panel builders, OEMs, and EPC contractors. You can also reach us via shansenenterprises.com.
