Description
Overview
The Eaton Bussmann 35KO7-660 is a 35A, 660/690V AC BS88 Type fuse link from the Bussmann KO7 series, engineered for reliable general purpose circuit protection in low voltage electrical systems. Conforming to BS88 Part 2 and IEC 60269-2, this bolted type fuse link offers an 80 kA breaking capacity in a BS Size A3 offset tag format. It is widely used in switchgear panels, motor control centres, and distribution boards across Indian industries requiring dependable overcurrent protection.
Key Features
- High Breaking Capacity — 80 kA fault current interruption protects downstream equipment from severe short-circuit damage
- Class gG Rating — full-range general purpose protection covering both overload and short-circuit conditions
- BS Size A3 Offset Tag — standardised bolted tag interface for secure, vibration-resistant connections in industrial enclosures
- Wide Voltage Range — rated 660/690V AC, suitable for Indian LV distribution systems running at 415V and European 500–690V networks
- BS88 Part 2 / IEC 60269-2 Compliance — meets internationally recognised standards for interchangeability and system design confidence
- CE Marked and RoHS Compliant — meets European safety and environmental directives, supporting export-oriented panel builders
- IEC Rated Certification — independently verified performance for use in certified electrical installations
- Bussmann KO7 Series — part of Eaton’s proven KO7 family, widely stocked and supported across India for fast replacement
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | 35KO7-660 |
| Series | Bussmann KO7 |
| Product Type | BS88 Low Voltage Fuse Link |
| Connection Type | Bolted Type |
| Tag Type | Offset Tag |
| BS Size | A3 |
| Amperage Rating | 35 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 35KO7-660 is best suited for general purpose overcurrent protection in low voltage power distribution systems where both overload and short-circuit protection are required under a single fuse element. Its Class gG characteristic makes it the correct choice when protecting cables, busbars, and passive loads in switchgear assemblies, distribution boards, and motor control centres operating at up to 660/690V AC.
With an 80 kA breaking capacity, this fuse link is suitable for installation in panels fed from high fault-level sources — a common requirement in Indian industrial facilities supplied from large HT transformers. The BS Size A3 form factor ensures straightforward retrofit into existing BS88-compatible fusegear without modification to the fuse carrier or base.
In India, this series is widely specified by panel builders in Coimbatore, Chennai, Pune, Ahmedabad, and Hyderabad for applications in textile machinery, pump control panels, HVAC distribution boards, food processing equipment, and utility substations. Engineers selecting fuses for motor branch circuits should verify motor FLA and verify against gG time-current characteristics to ensure selectivity with upstream protection devices.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products with full manufacturer backing
- 100% genuine Eaton Bussmann products supplied with warranty and traceability
- Pan-India delivery to all major cities and industrial zones
- WhatsApp technical support for product selection, cross-reference, and application queries
- Bulk pricing available for panel builders, OEMs, EPC contractors, and system integrators
Compatible Products & Accessories
- Eaton Bussmann BS88 A3 Fuse Carriers and Bases (compatible bolted type fusegear)
- Eaton Bussmann KO7 Series Fuse Links in other current ratings (10A to 200A range)
- Eaton Bussmann BS88 Part 2 Fuse Holders for distribution boards
- Eaton Motor Protection Circuit Breakers (for coordinated motor branch protection)
- Eaton Bussmann Fuse Puller and Handling Tools for safe fuse replacement
- Eaton Surge Protective Devices (SPDs) for upstream transient protection
Frequently Asked Questions
What does Class gG mean for the Eaton Bussmann 35KO7-660?
Class gG denotes a general purpose full-range fuse that provides protection against both overload currents and short-circuit currents. The ‘g’ prefix indicates full-range breaking capability, meaning the fuse can safely interrupt any fault current from its minimum fusing current up to its maximum breaking capacity of 80 kA. The ‘G’ suffix indicates it is suitable for general purpose cable and circuit protection rather than semiconductor or motor-specific applications.
Is the 35KO7-660 suitable for 415V AC systems used in India?
Yes. The 35KO7-660 is rated at 660/690V AC, which means it is fully suitable for use in Indian 415V AC three-phase and 240V AC single-phase systems. A fuse rated for a higher voltage than the system voltage is always acceptable from a protection standpoint, and the 660V rating provides additional margin for transient voltage spikes common in industrial environments.
What is the BS Size A3 and how does it affect fuse selection?
BS Size A3 refers to the physical dimensions of the fuse link as defined under the BS88 Part 2 standard. It determines the overall length, tag dimensions, and mounting geometry of the fuse. When replacing or specifying a fuse, the BS size must match the fuse carrier or holder exactly to ensure correct mechanical fit, contact pressure, and electrical continuity. The A3 size is a commonly used size in industrial switchgear across LV distribution applications.
What is the difference between a bolted type and a blade type BS88 fuse link?
A bolted type fuse link, like the 35KO7-660, uses flat metal tags that are secured to the fuse carrier contacts using bolts or screws. This provides a robust, low-resistance mechanical connection well suited to high fault-current environments and applications subject to vibration. Blade type fuse links use a blade or knife contact that clips or inserts directly into spring-loaded contacts. The two types are not interchangeable, and the correct type must match the fuse carrier or base being used.
Can the 35KO7-660 be used for motor protection applications?
The 35KO7-660 carries a Class gG rating, which is designed for general purpose circuit protection including cables and passive loads. For dedicated motor branch-circuit protection — especially where high inrush currents must be tolerated without nuisance blowing — a Class gM or aM (motor duty) fuse is typically preferred. However, gG fuses can protect motor circuits when selected with sufficient current rating headroom above the motor’s full load amps to ride through starting inrush. Consult Shansen Enterprises for motor protection fuse selection guidance specific to your application.
How do I order the Eaton Bussmann 35KO7-660 from Shansen Enterprises?
You can request a quote directly from Shansen Enterprises by clicking the WhatsApp button on this page or by using the email enquiry form. Mention the catalog number 35KO7-660, your required quantity, and delivery location anywhere in India. Our team will respond promptly with pricing, availability, and lead time. For bulk orders or repeat supply contracts, we offer preferential pricing for panel builders, OEMs, and industrial procurement teams. Shansen Enterprises is an authorized Eaton Channel Partner based in Coimbatore, Tamil Nadu, ensuring you receive 100% genuine Eaton Bussmann products with full warranty support.
