Description
Overview
The Eaton Bussmann 170M3810D is a 63 A, 690 V AC high speed square body semiconductor fuse engineered for the protection of sensitive power electronics where conventional fuses react too slowly. Part of Eaton’s trusted 170M Series, this fuse conforms to IEC 60269-4 and carries CE and RoHS certifications, making it suitable for demanding industrial automation and power conversion environments across India. Its DIN 43620 DIN 1 knife blade contact construction ensures reliable mounting and low contact resistance in panel assemblies.
Key Features
- 63 A Amperage Rating — Precisely matched for semiconductor protection in low to mid-range power converter circuits
- 690 V AC Rated Voltage — Compatible with standard industrial three-phase supply voltages used across Indian factories
- 200 kA Interrupt Rating — Provides high fault clearing capacity to protect downstream semiconductors under severe short-circuit conditions
- Class aR Fuse Classification — Purpose-rated for semiconductor protection with very fast arc-quenching characteristics
- DIN 43620 DIN 1 Format with Knife Blade Contacts — Standardized construction ensures compatibility with a wide range of DIN-format fuse holders and bus systems
- Dual Fuse Indicator (Type D) — Provides visual blown-fuse indication on both sides for quick fault identification in dense panel layouts
- IEC 60269-4 Compliant — Meets international standards for high speed fuses used in semiconductor protection
- CE Marked and RoHS Compliant — Meets European regulatory requirements; suitable for export-oriented and multinational plant installations
- Bussmann 170M Series Pedigree — Part of Eaton’s globally proven high speed fuse range with established cross-reference compatibility
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 170M3810D |
| Series | Bussmann 170M |
| Amperage Rating | 63 A |
| Rated Voltage AC | 690 V |
| 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) |
| Interrupt Rating | 200 kA |
| Breaking Capacity | 200 kA |
| 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 |
| Brand | Eaton |
Applications & Selection Guide
The 170M3810D is specifically designed to protect semiconductor devices such as thyristors, IGBTs, diodes, and SCRs that are highly susceptible to thermal destruction during fault events. Its Class aR rating means it is optimized solely for semiconductor protection — not for general-purpose or motor protection — ensuring that the fuse clears faults before the semiconductor’s I²t limit is exceeded. This makes it the correct choice for engineers designing protection schemes in power converter cubicles, DC bus architectures, and regenerative drive systems.
In Indian industrial settings, this fuse is widely used in VFD panels for steel rolling mills, paper plants, cement grinding units, and water treatment stations in cities like Coimbatore, Chennai, Pune, and Ahmedabad. It is equally suited for UPS rectifier banks, battery charging systems, solar inverter protection in photovoltaic installations, and soft starter assemblies for large induction motors.
When selecting this fuse, verify that the fuse holder or fuse base is rated for DIN 43620 DIN 1 knife blade format and that the system’s prospective short-circuit current does not exceed 200 kA. For applications requiring DC-rated fuses or different ampere ratings within the 170M Series, Shansen Enterprises can assist with the correct cross-reference and alternate catalog selection.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — guaranteed genuine product with full manufacturer traceability
- 100% genuine Eaton Bussmann products supplied with original warranty and documentation
- Pan-India delivery to all major industrial cities and project sites
- WhatsApp technical support for fuse sizing, cross-referencing, and application queries
- Bulk pricing available for panel builders, OEMs, and EPC contractors
Compatible Products & Accessories
- DIN 43620 DIN 1 format fuse holders and bases compatible with 170M Series knife blade fuses
- Eaton Bussmann 170M Series fuses in alternate ampere ratings (e.g., 32 A, 50 A, 80 A, 100 A) for coordinated protection
- Eaton Bussmann fuse monitoring relays and blown-fuse alarm modules
- DIN rail mounted fuse blocks for 170M Series square body fuses
- Eaton coordinated semiconductor contactors and thyristor modules for complete drive protection assemblies
- Copper bus bars and insulated terminal shrouds for knife blade fuse terminations
Frequently Asked Questions
What does Class aR mean for the Eaton Bussmann 170M3810D?
Class aR denotes a fuse rated exclusively for semiconductor protection. Unlike Class gG (general purpose) fuses, a Class aR fuse is designed to clear only high-magnitude fault currents with extreme speed — before the energy let-through (I²t) can damage thyristors, IGBTs, or diodes. The 170M3810D should not be used as a general-purpose overcurrent protection device; it must be used in conjunction with a separate backup fuse or circuit breaker for overload protection of the circuit.
What is the interrupt rating of the 170M3810D and why does it matter?
The 170M3810D carries a 200 kA interrupt rating, which is the maximum prospective fault current the fuse can safely clear without rupture or fire hazard. In industrial systems fed from large transformers or with low source impedance — common in Indian manufacturing plants — available fault currents can be very high. A 200 kA rated fuse ensures the protection device itself will not fail catastrophically during a worst-case short circuit.
Is the 170M3810D suitable for DC bus protection in VFD systems?
Yes. The Eaton Bussmann 170M3810D is explicitly listed for DC common bus and DC drive applications. High speed Class aR fuses are routinely used on the DC bus of variable frequency drives and regenerative converters where the fault current rise time is extremely fast and conventional fuses would fail to protect the power semiconductors. Always confirm the DC voltage rating applicability with Eaton’s published derating data or consult Shansen Enterprises for application-specific guidance.
What fuse holder or base is compatible with the 170M3810D?
The 170M3810D is built to DIN 43620 DIN 1 format with knife blade contacts. It requires a fuse holder or fuse base designed for DIN 43620 DIN 1 size knife blade fuses. Eaton and other manufacturers supply matching fuse blocks, bus-mounted bases, and rail-mounted holders for this format. Shansen Enterprises can advise on compatible mounting hardware from the Eaton catalog to complete your panel assembly.
Does the 170M3810D have a blown fuse indicator?
Yes. The 170M3810D is fitted with a Dual Indicator of Type D, which provides a visible blown-fuse signal on both sides of the fuse body. This is particularly useful in multi-fuse panel assemblies where quick visual fault identification reduces troubleshooting time and system downtime. Some panel designs also route the indicator to an external alarm circuit — consult the Eaton 170M Series datasheet for indicator wiring options.
How do I order the Eaton Bussmann 170M3810D from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 170M3810D directly from Shansen Enterprises via WhatsApp or email using the contact buttons on this page. Provide your required quantity, delivery location, and any project timeline, and our team will respond with pricing, availability, and estimated delivery across India. Shansen Enterprises is an authorized Eaton channel partner based in Coimbatore and supplies genuine Eaton Bussmann products to panel builders, OEMs, and industrial plants nationwide.
