Description
Overview
The Eaton Bussmann DEO125 is a 125 A rated, Class gG bolted-type fuse link manufactured to BS88 Part 2 and IEC 60269-2 standards, designed for general-purpose overcurrent protection in low voltage systems up to 415 V AC. Part of the Bussmann TSFP series, it features an A4 BS size with an offset tag closed slot configuration and an 80 kA breaking capacity, making it a dependable choice for demanding industrial environments. Engineers specifying fuses for switchgear panels and motor control centres in India will find the DEO125 a technically sound and standards-compliant solution.
Key Features
- 125 A Amperage Rating — suitable for feeder and branch circuit protection in medium-load industrial systems
- 415 V AC System Rating — matched to the standard Indian three-phase distribution voltage
- 80 kA Breaking Capacity — high fault current interruption capability for protection in high-energy distribution networks
- Class gG Fuse — full-range general-purpose fuse providing protection against both overloads and short-circuit faults
- BS88 Part 2 / IEC 60269-2 Compliant — internationally recognized standard ensuring predictable and consistent protection characteristics
- Bolted Type Connection — secure, low-resistance termination suited for high-current busbar and panel installations
- A4 BS Size with Offset Tag Closed Slot — specific physical form factor enabling precise fitment in compatible BS88 fuse holders and carriers
- CE Marked and RoHS Compliant — meets European regulatory requirements for safety and environmental compliance
- IEC Certified — independently verified performance to international electrotechnical standards
- Bussmann TSFP Series — engineered for reliable overcurrent protection in industrial low voltage applications
Technical Specifications
| Specification | Value |
|---|---|
| Catalog Number | DEO125 |
| Series | Bussmann TSFP |
| Fuse Type | Bolted Type Fuse Link |
| BS Size | A4 |
| Tag Type | Offset Tag Closed Slot |
| Amperage Rating | 125 A |
| Rated Voltage | 415 V AC |
| Voltage Range | 415 V AC system |
| Breaking Capacity | 80 kA |
| Fuse Class | Class gG |
| Standard | BS88 Part 2, IEC 60269-2 |
| Compliances | CE Marked, RoHS Compliant |
| Certifications | IEC Rated |
| Delivery Class | TSFP |
| Application | General purpose circuit protection — low voltage switchgear panels, motor control centres, distribution boards |
Applications & Selection Guide
The DEO125 is the correct choice when specifying general-purpose overcurrent protection for 415 V AC low voltage systems requiring a 125 A fuse with a high 80 kA breaking capacity. Its Class gG rating means it provides full-range protection, clearing both sustained overloads and high short-circuit fault currents — making it appropriate for feeder circuits, bus protection in distribution boards, and outgoing circuits in motor control centres where motors or mixed loads are connected.
In the Indian industrial context, the DEO125 is well matched to panel builders, switchgear manufacturers, and plant electrical teams in sectors such as textiles, automotive, cement, steel, pharmaceuticals, and infrastructure projects where 415 V TPN distribution is standard. The A4 BS size and bolted connection type must be verified against the fuse holder or carrier dimensions before installation to ensure correct fitment.
When selecting this fuse, confirm that the 125 A current rating and 80 kA breaking capacity are both consistent with the maximum prospective short-circuit current at the installation point and the continuous load current of the protected circuit. For motor circuits, consider the starting current characteristics and consult the coordination tables to ensure selectivity with upstream and downstream protective devices.
Why Buy from Shansen Enterprises?
- Authorized Eaton Channel Partner in Coimbatore — genuine products directly from an official source
- 100% genuine Eaton Bussmann products supplied with manufacturer warranty
- Pan-India delivery to all major cities, industrial zones, and project sites
- WhatsApp technical support for product selection, cross-referencing, and specification queries
- Bulk pricing available for panel builders, switchgear manufacturers, and EPC contractors
Compatible Products & Accessories
- BS88 A4 Fuse Holders and Fuse Carriers (bolted type, matching A4 form factor)
- BS88 Fuse Bases and Switch-Fuse Units rated for 125 A and 415 V AC
- Eaton Bussmann BS88 Fuse Links in adjacent ratings (100 A, 160 A) for system coordination
- Eaton BS88 Neutral Links and Solid Links for neutral conductor isolation
- DIN Rail Mounted Fuse Carrier Assemblies compatible with A4 BS size
- Eaton Motor Starters and Contactors for motor control centre applications
- Busbar Connectors and Termination Kits for bolted fuse installations
Frequently Asked Questions
What does Class gG mean for the Eaton Bussmann DEO125 fuse link?
Class gG denotes a full-range general-purpose fuse that is capable of interrupting all fault currents from the minimum fusing current up to the rated breaking capacity — in this case 80 kA. The ‘g’ prefix means it provides full-range protection and the ‘G’ suffix designates general-purpose use. This makes the DEO125 suitable for protecting cables, busbars, and distribution circuits against both sustained overloads and prospective short-circuit currents in 415 V AC low voltage systems.
Is the DEO125 suitable for motor circuit protection in Indian industrial panels?
The DEO125 is a Class gG general-purpose fuse and can be used on motor circuits, but engineers should verify that the 125 A rating is correctly sized for the motor’s full-load current and starting current characteristics. For dedicated motor protection, Class aM (motor protection) fuses are sometimes preferred as they are specifically rated to withstand motor starting transients. Consult Eaton’s coordination tables or contact Shansen Enterprises for application-specific guidance before specifying this fuse for motor circuits.
What is the breaking capacity of the DEO125, and why does it matter?
The DEO125 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 dangerous arc. When installing this fuse in a panel, the prospective short-circuit current at the point of installation — determined by a short-circuit analysis of the distribution system — must not exceed 80 kA. Using a fuse whose breaking capacity is lower than the prospective fault current is a serious safety hazard and a non-compliance with IEC 60269-2.
What standards does the Eaton Bussmann DEO125 comply with?
The DEO125 is manufactured and tested to BS88 Part 2 and IEC 60269-2 standards, which govern low voltage fuses for general applications. It carries CE marking confirming conformity with applicable European directives, is RoHS compliant for restriction of hazardous substances, and is IEC rated — meaning its performance characteristics have been verified against international electrotechnical standards. These certifications make it acceptable for use in industrial installations across India and in export-oriented projects requiring international standards compliance.
What fuse holder or carrier is compatible with the DEO125?
The DEO125 is an A4 BS size fuse link with a bolted-type connection and an offset tag closed slot form factor. Compatible fuse holders, carriers, and bases must be rated for A4 BS size and designed to accept the bolted offset tag configuration. Shansen Enterprises can assist in identifying and supplying the correct matching Eaton Bussmann fuse holders and carrier assemblies for the DEO125. Always confirm the physical dimensions and connection type before procurement to ensure correct fitment in your panel or switchgear assembly.
How do I order the Eaton Bussmann DEO125 from Shansen Enterprises?
You can request a quote for the Eaton Bussmann DEO125 directly from Shansen Enterprises by clicking the WhatsApp button on this page or by sending an email through the contact form. Mention the catalog number DEO125, required quantity, and your delivery location in India. Shansen Enterprises is an authorized Eaton channel partner based in Coimbatore, Tamil Nadu, and supplies genuine Eaton Bussmann products with pan-India delivery. Bulk orders, project-based procurement, and repeat supply contracts are all handled with competitive pricing and prompt dispatch.
