Description
Overview
The Eaton Bussmann 315NO9-660 is a bolted-type, BS88 low voltage fuse link from the Bussmann NO9 Series, rated at 315 amperes and 660/690V AC with an 80 kA breaking capacity. Manufactured to BS88 Part 2 and IEC 60269-2, this Class gG fuse link provides dependable overload and short-circuit protection in a wide range of industrial and commercial LV power distribution applications. Its B3 BS Size and single-slot tag type make it a straightforward replacement or design-in component for standard BS88 fuse gear throughout India.
Key Features
- 315A Amperage Rating — handles high-current circuits typical in heavy industrial and commercial distribution systems
- 660/690V AC Voltage Rating — suitable for standard 3-phase LV networks up to 690V AC across Indian industries
- 80 kA Breaking Capacity — provides robust fault current interruption to protect downstream equipment and personnel
- Class gG Fuse Classification — full-range protection covering both overload and short-circuit conditions for general-purpose use
- BS88 Part 2 / IEC 60269-2 Compliance — meets internationally recognised low voltage fuse standards for assured interoperability
- Bolted Type Construction — secure, low-resistance connection in busbars and switchgear ensuring minimal contact resistance and reliable operation
- BS Size B3, Single-Slot Tag — standard physical format enabling straightforward fit in compatible BS88 fuse bases and carriers
- CE Marked and RoHS Compliant — meets European safety directives and restricts hazardous substances for environmentally responsible installations
- IEC Rated Certification — independently verified performance for use in IEC-standard switchgear and panel assemblies
- Bussmann NO9 Series — part of Eaton’s proven product family offering consistent quality and availability for panel builders and OEMs
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 315NO9-660 |
| Series | Bussmann NO9 |
| Product Type | BS88 Low Voltage Fuse Link |
| Construction Type | Bolted Type |
| BS Size | B3 |
| Tag Type | Single Slot |
| Amperage Rating | 315 A |
| Rated Voltage (AC) | 660/690 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 |
Applications & Selection Guide
The Eaton Bussmann 315NO9-660 is specified for general-purpose circuit protection in low voltage switchgear panels, motor control centres (MCCs), and distribution boards where a 315A, 660/690V AC bolted fuse is required. Its Class gG rating means it provides full-range protection — it will clear faults from the minimum fusing current right through to the maximum prospective short-circuit current of 80 kA, making it appropriate for both overload and short-circuit scenarios without requiring a separate backup fuse.
In Indian industrial practice, BS88 bolted fuse links of this rating are widely used in steel plants, cement factories, textile mills, water treatment facilities, chemical processing units, and large commercial complexes where 3-phase 415V to 690V bus systems are common. The B3 BS Size and single-slot tag format ensure physical compatibility with standard BS88 fuse bases and carriers from Eaton and other BS88-system manufacturers.
When selecting this fuse, verify that the prospective short-circuit current at the point of installation does not exceed 80 kA RMS, confirm the busbar or fuse base is rated for B3 bolted-type links, and ensure the continuous load current under the expected service conditions does not exceed the 315A rating after applying any derating required by IEC 60269-2 for elevated ambient temperatures.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full manufacturer traceability
- 100% genuine Eaton Bussmann stock supplied with warranty and documentation
- Pan-India delivery — orders despatched from Coimbatore to all major cities and industrial zones
- WhatsApp technical support — get application guidance and cross-reference help before you order
- Bulk pricing for panel builders, EPC contractors, and OEMs — contact us for volume quotations
Compatible Products & Accessories
- Eaton Bussmann BS88 Fuse Bases (B3 size, bolted type) compatible with 315NO9-660
- Eaton Bussmann BS88 Fuse Carriers and Holders for NO9 Series links
- Eaton Bussmann NO9 Series fuse links in adjacent amperage ratings (250A, 355A, 400A) for panel coordination
- Eaton Bussmann BS88 Fuse Puller / Extraction Tools for safe maintenance on bolted fuse systems
- Eaton Low Voltage Switchgear and Distribution Board accessories
- Eaton Motor Protection Circuit Breakers for combined fuse and breaker protection schemes
Frequently Asked Questions
What does Class gG mean for the Eaton Bussmann 315NO9-660?
Class gG denotes a full-range general-purpose fuse that is capable of breaking all currents from the minimum fusing current up to the rated breaking capacity of 80 kA. The ‘g’ indicates full-range breaking capability and the ‘G’ indicates general-purpose application, meaning this fuse protects cables and equipment against both sustained overloads and high short-circuit fault currents without requiring a separate backup device — as defined under BS88 Part 2 and IEC 60269-2.
What is the breaking capacity of the 315NO9-660 and why does it matter?
The 315NO9-660 has a rated breaking capacity of 80 kA. This is the maximum prospective short-circuit current the fuse can safely interrupt without rupturing or causing a hazard. Before installing this fuse, the system designer must confirm through a short-circuit study that the prospective fault current at the installation point does not exceed 80 kA RMS. In most Indian LV distribution systems fed from standard distribution transformers, fault levels are well within this limit, but high-capacity MV-fed switchrooms should be checked carefully.
Is the 315NO9-660 suitable for 415V three-phase systems used in India?
Yes. The 315NO9-660 is rated at 660/690V AC, which fully covers the 415V (line-to-line) or 240V (line-to-neutral) systems standard in India. A fuse rated for a higher voltage may always be used on a lower voltage system of the same type, so the 660/690V rating provides an additional safety margin. It is suitable for use in 3-phase 415V distribution boards, switchgear, and motor control centres across Indian industrial and commercial installations.
What fuse base or holder is compatible with the 315NO9-660?
The 315NO9-660 is a BS Size B3, bolted-type, single-slot tag fuse link. It requires a compatible B3-rated BS88 bolted fuse base or carrier designed for the NO9 Series physical format. Eaton Bussmann manufactures matching fuse bases and carriers for this series. Always verify that the fuse base is rated for at least 315A continuous current and 660/690V AC before installation. Contact Shansen Enterprises in Coimbatore for guidance on selecting the correct matching base for your panel design.
What standards and certifications does the 315NO9-660 comply with?
The Eaton Bussmann 315NO9-660 complies with BS88 Part 2 and IEC 60269-2 — the primary international and British standards governing low voltage fuse links for general use. It carries IEC Rated certification confirming third-party verified performance to IEC requirements. It is also CE Marked, indicating conformity with applicable European Union directives, and is RoHS Compliant, confirming restriction of hazardous substances in its manufacture. These certifications make it acceptable for use in industrial installations and export equipment requiring documented compliance.
How do I order the Eaton Bussmann 315NO9-660 from Shansen Enterprises?
You can request a quote for the Eaton Bussmann 315NO9-660 directly from Shansen Enterprises by clicking the WhatsApp button on this page or by sending an email to our sales team. Please mention the catalog number 315NO9-660, the quantity required, and your delivery location anywhere in India. As an authorized Eaton Channel Partner based in Coimbatore, Tamil Nadu, we supply 100% genuine Eaton Bussmann products with full documentation, competitive pricing, and fast pan-India dispatch. Bulk orders for panel builders and EPC projects are welcome — contact us for a volume quotation.
