Description
Overview
The Eaton Bussmann NSD4 is a BS88 Part 2 / IEC 60269-2 Class gG low voltage fuse link rated 4A at 550V AC, with an 80 kA breaking capacity. Its clip-on tag format (BS Size F1) enables straightforward installation into compatible BS88 fuse holders without additional tools or hardware. This fuse is part of the trusted Bussmann NSD series, widely used in Indian industrial panel building and power distribution applications.
Key Features
- Class gG Rating — full-range overcurrent protection for cables and general electrical circuits
- 80 kA Breaking Capacity — safely clears high prospective short-circuit currents common in industrial LV systems
- 550V AC Voltage Rating — compatible with standard 415V and higher voltage industrial supplies in India
- 4A Current Rating — ideal for protecting small feeders, control circuits, and instrumentation loads
- Clip-On Tag Design — tool-free fitment into BS88 F1 clip-on fuse holders for fast installation and replacement
- BS88 Part 2 / IEC 60269-2 Compliant — meets internationally recognised low voltage fuse standards
- CE Marked & RoHS Compliant — suitable for export-oriented OEM panels and compliance-sensitive projects
- IEC Certified — independently verified performance for use in critical industrial installations
- Compact F1 Body Size — fits standard BS88 clip-on fuse bases widely available in the Indian market
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | NSD4 |
| Series | Bussmann NSD |
| BS Size | F1 |
| Tag Type | Clip-On Tag |
| Amperage Rating | 4 A |
| Voltage Rating (AC) | 550 V AC |
| Breaking Capacity | 80 kA |
| Fuse Class | Class gG |
| Standard | BS88 Part 2, IEC 60269-2 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated |
| Application | General purpose circuit protection, low voltage switchgear panels, motor control centres, distribution boards, industrial installations |
Applications & Selection Guide
The NSD4 is the correct choice when you need dependable 4A overcurrent protection in low voltage distribution boards, motor control centres (MCCs), and industrial switchgear panels operating up to 550V AC. Its Class gG characteristic covers both overload and short-circuit conditions across the full current range, making it suitable for protecting outgoing cable feeders, control transformers, instrumentation circuits, and auxiliary supplies in 415V three-phase industrial systems.
In Indian manufacturing plants, process industries, and infrastructure projects in Coimbatore, Chennai, Pune, and across the country, BS88 clip-on fuses are a standard choice for panel builders seeking reliable IEC-compliant protection in compact form factors. The F1 clip-on tag body mates directly with widely stocked BS88-compatible fuse holders and bases, minimising panel design complexity.
When specifying this fuse, verify that the prospective short-circuit current at the installation point does not exceed 80 kA and that the fuse holder is rated for the F1 clip-on body. For motor branch circuit protection requiring back-up aR or gR characteristics, consider other Bussmann series products available from Shansen Enterprises.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products, no counterfeits
- 100% genuine Eaton Bussmann products supplied with manufacturer warranty
- Pan-India delivery to all major industrial cities and tier-2 locations
- WhatsApp technical support for product selection, cross-referencing, and spares
- Bulk pricing and project quotations for panel builders, EPC contractors, and OEMs
Compatible Products & Accessories
- BS88 F1 clip-on fuse holders and bases (Eaton Bussmann compatible)
- Bussmann NSD series fuse links in other current ratings (2A, 6A, 10A, 16A, etc.)
- BS88 fuse carriers and disconnectors for DIN rail and busbar mounting
- Eaton Bussmann NH fuse links for higher current distribution circuits
- Fuse monitoring and blown-fuse indication accessories
Frequently Asked Questions
What does Class gG mean for the NSD4 fuse?
Class gG (general purpose, full-range) means the NSD4 is designed to clear both overload currents and short-circuit currents across its entire operating range — from small overloads just above rated current up to the maximum 80 kA breaking capacity. It is the standard fuse class for protecting cables and general electrical equipment in LV distribution systems to IEC 60269-2.
What fuse holder is compatible with the Eaton Bussmann NSD4?
The NSD4 uses a BS88 F1 clip-on tag body. It is designed to fit BS88 Part 2 clip-on type fuse holders and bases rated for the F1 body size. Always confirm that your fuse holder is rated for at least 550V AC and the required current before installation. Shansen Enterprises can advise on compatible Eaton fuse holders available in India.
Is the NSD4 suitable for motor protection applications?
The NSD4 carries a Class gG characteristic, which provides full-range overcurrent protection but is not optimised for motor back-up protection. For motor branch circuit protection where high inrush currents must be tolerated, a Class aM (motor duty) fuse is typically recommended. The NSD4 is best applied for protecting cable feeders, control circuits, and distribution in general purpose switchgear rather than as a direct motor branch circuit back-up fuse.
What is the breaking capacity of the NSD4 and why does it matter?
The NSD4 has a breaking capacity of 80 kA. This is the maximum prospective short-circuit current the fuse can safely interrupt without rupture or fire hazard. For installation in Indian industrial LV systems, you must confirm that the prospective fault level at the point of installation does not exceed 80 kA. Most distribution board and MCC applications in 415V systems will fall well within this limit, but always verify with your system fault level calculation.
Does the NSD4 comply with Indian and international electrical standards?
Yes. The NSD4 is manufactured to BS88 Part 2 and IEC 60269-2, which are the internationally recognised standards for low voltage fuse links. It is CE marked and RoHS compliant, and carries IEC certification. IEC 60269-2 is referenced by Indian electrical installation standards and accepted by major EPC contractors, industrial clients, and inspection authorities across India.
How do I order the Eaton Bussmann NSD4 from Shansen Enterprises?
You can request a quote for the NSD4 by clicking the WhatsApp button on this page or by emailing Shansen Enterprises directly through shansenenterprises.com. Please mention the catalog number NSD4, required quantity, and your delivery location anywhere in India. Our team in Coimbatore will respond promptly with pricing, availability, and dispatch timelines. Bulk orders and project requirements are welcome.
