Description
Overview
The Eaton Bussmann 630R11-660 is a high-current, general-purpose BS88 bolted fuse link from the Bussmann R11 series, carrying a 630 A current rating and 660/690 V AC voltage rating with an 80 kA breaking capacity. Certified to BS88 Part 2 and IEC 60269-2, this Class gG fuse link provides dependable overcurrent and short-circuit protection in demanding industrial power distribution applications. Its CE marking and RoHS compliance make it suitable for modern switchgear and panel building projects across India and export markets.
Key Features
- High Current Rating (630 A) — Suitable for heavy-duty feeders, main incomer circuits, and large motor control centre bus protection.
- High Breaking Capacity (80 kA) — Safely interrupts severe short-circuit currents to protect downstream equipment and personnel.
- Wide Voltage Range (660/690 V AC) — Directly applicable to Indian 415 V and 690 V industrial systems without derating.
- Class gG Rating — Full-range general-purpose protection covering both overload and short-circuit conditions in a single fuse element.
- BS88 Part 2 / IEC 60269-2 Compliance — Internationally recognized standard ensuring interchangeability and type-tested performance.
- Bolted Type Connection — Secure, low-resistance bolted termination for high-current applications where vibration and thermal cycling are factors.
- Double Slot Tag Type — C2 BS size with double-slot tag ensures correct fitting and prevents incorrect fuse substitution.
- CE Marked and RoHS Compliant — Meets European Directives, supporting projects with environmental and regulatory documentation requirements.
- IEC Rated Certification — Independently verified performance giving design engineers and panel builders confidence in type-tested data.
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 630R11-660 |
| Series | Bussmann R11 |
| Fuse Type | Bolted Type |
| BS Size | C2 |
| Tag Type | Double Slot |
| Amperage Rating | 630 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 630R11-660 is specified for general-purpose overcurrent protection where high fault-level discrimination is required in low voltage power distribution systems. Typical installation points include main incomer protection in LV switchgear panels, sub-distribution feeder circuits in motor control centres (MCCs), and bus protection in large industrial distribution boards operating at 415 V or 690 V AC. The 630 A rating covers heavy feeder cables and transformer secondary circuits commonly found in manufacturing plants, utilities, and infrastructure projects across India.
Class gG fuses provide full-range protection, meaning a single fuse type handles both sustained overloads and prospective short-circuit currents up to the 80 kA breaking capacity — simplifying panel design and reducing the need for separate backup protection devices. Engineers specifying for IEC 60269-2 compliant installations, including those under IS 13703 aligned projects in India, will find the 630R11-660 a proven, type-tested choice that satisfies panel approval authorities and third-party inspectors.
In the Indian context, this fuse link is widely applied in cement plants, steel rolling mills, textile processing units, chemical process industries, and data centre power distribution around Coimbatore, Chennai, Pune, Ahmedabad, and other major industrial hubs. Panel builders and EPC contractors sourcing for bulk projects can contact Shansen Enterprises for consolidated supply and technical pre-sales support.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — official supply chain, genuine product guaranteed
- 100% genuine Eaton Bussmann products with manufacturer warranty
- Pan-India delivery to all major cities and industrial estates
- WhatsApp technical support for product selection, cross-referencing, and documentation
- Bulk pricing and credit terms available for panel builders, EPCs, and OEM customers
Compatible Products & Accessories
- Eaton Bussmann BS88 C2 Bolted Fuse Base / Fuse Holder (compatible with 630 A C2 tag)
- Eaton Bussmann R11 Series BS88 Fuse Links — lower current ratings for feeder discrimination (e.g., 400 A, 500 A)
- Eaton Bussmann Fuse Puller / Handling Tool for bolted high-current fuse links
- Eaton MEM / Holec LV Switchgear compatible with BS88 C2 fuse bases
- Eaton Bussmann Fuse Monitoring Indicators (where indicator versions are available in compatible series)
- Copper bolted fuse tags and DIN rail mounting accessories for C2 size bases
Frequently Asked Questions
What does Class gG mean for the Eaton Bussmann 630R11-660 fuse link?
Class gG denotes a general-purpose fuse capable of full-range protection — it safely interrupts currents from the minimum fusing current (overload region) up to the maximum prospective short-circuit current, which in this case is 80 kA. This means a single 630R11-660 fuse protects cables and equipment against both sustained overloads and high-energy fault conditions without requiring a separate backup fuse, simplifying panel design and reducing component count in your switchgear assembly.
Is the 630R11-660 suitable for 415 V AC systems used in Indian industrial installations?
Yes. The 630R11-660 is rated at 660/690 V AC, which means it operates well within its voltage rating when applied on standard Indian 415 V AC (line-to-line) systems. Using a fuse within its rated voltage provides conservative, fully compliant protection. The fuse is also appropriate for 690 V AC applications such as large motor drives and variable frequency drive input circuits where higher system voltages are used.
What is the BS Size C2 and double-slot tag type, and why does it matter for installation?
BS Size C2 refers to the physical blade/tag dimensions defined under the BS88 standard for high-current fuse links. The double-slot tag is a keying feature that ensures the 630 A fuse can only be fitted into a compatible C2-rated fuse base, preventing accidental substitution of an incorrectly rated fuse — a critical safety feature in high-fault-level switchgear. Panel builders must confirm their fuse holder or fuse base is rated and dimensioned for BS88 C2 double-slot tags before installing the 630R11-660.
What standards and certifications does the 630R11-660 comply with?
The Eaton Bussmann 630R11-660 complies with BS88 Part 2 and IEC 60269-2, the internationally recognised standards for low voltage fuses used in general industrial applications. It is CE Marked under the applicable European Directives and is RoHS Compliant for restricted hazardous substances. The product carries IEC Rated certification, confirming that its rated performance — including the 80 kA breaking capacity — has been verified through independent type testing. These certifications are typically required for panel third-party inspections, PESO approvals, and export projects.
Can the 630R11-660 be used for motor protection in motor control centres?
The 630R11-660 is a Class gG general-purpose fuse and is well suited for feeder and bus protection in motor control centres. For direct motor branch circuit protection, engineers sometimes specify Class aM (motor-rated) fuses that are tolerant of motor starting inrush currents. However, the 630 A gG fuse is commonly used at the MCC incomer or sub-feeder level, providing backup short-circuit protection upstream of individual motor starters. Please consult Shansen Enterprises technical support via WhatsApp for coordination study assistance and correct fuse selection for your specific MCC design.
How do I order the Eaton Bussmann 630R11-660 from Shansen Enterprises?
Ordering is straightforward. Click the WhatsApp button on this page to send your inquiry directly to our sales team, or use the email quote request form with your catalog number (630R11-660), required quantity, delivery location, and any project documentation requirements. Shansen Enterprises is an authorized Eaton Channel Partner based in Coimbatore and supplies genuine Eaton Bussmann products with pan-India delivery. Bulk orders, scheduled releases, and project reservations are welcome — our team will respond with availability, lead time, and pricing within one business day.
