Description
The Eaton Bussmann 630NHG3B is a 630A NH size 3 low-voltage DIN-type dual fuse link engineered to deliver dependable full-range overcurrent protection in demanding electrical installations. Conforming to IEC 60269 and DIN EN 60269 standards, this fuse link carries a gL-gG class rating, making it suitable for protecting both cables and general-purpose loads across a wide range of fault current levels. With its robust NH3 blade contact construction and dual fuse element design, the 630NHG3B ensures consistent performance and predictable operation under sustained overload and short-circuit conditions.
The 630NHG3B is widely deployed in low-voltage switchgear assemblies, main and sub-distribution boards, motor control centres, and industrial feeder panels. Its 630A current rating makes it particularly well suited for protecting high-current cable feeders, transformer secondaries, bus coupler circuits, and motor starter feeders in manufacturing plants, data centres, commercial buildings, and utility substations. The NH size 3 form factor integrates seamlessly with standard DIN-compatible fuse bases and withdrawable fuse carriers commonly used across LV panel builders in India and globally.
From a technical standpoint, the 630NHG3B benefits from Eaton Bussmann’s dual fuse element design, which enhances arc quenching performance and delivers a high breaking capacity suitable for modern low-impedance distribution networks. Its DIN-type construction ensures dimensional interchangeability with other NH3-compliant fuse links, simplifying maintenance and replacement. Full compliance with IEC 60269 and DIN EN 60269 guarantees that the fuse meets internationally recognised requirements for time-current characteristics, power dissipation limits, and overload discrimination, giving engineers confidence in selective coordination within multi-tier protection schemes.
Eaton Bussmann is one of the world’s most trusted names in circuit protection, with decades of engineering heritage supplying OEMs, panel builders, electrical contractors, and utilities across more than 100 countries. Their NH fuse link range is renowned for dimensional precision, consistent manufacturing quality, and rigorous factory testing, ensuring every unit performs to specification throughout its service life. Specifying Eaton Bussmann products means reduced risk of nuisance tripping, improved system uptime, and compliance with international safety standards on every project.
To enquire about the Eaton Bussmann 630NHG3B, contact Shansen Enterprises in Coimbatore, an authorized Eaton Bussmann distributor serving customers across Tamil Nadu and South India. Reach us via WhatsApp or email for competitive pricing, real-time stock availability, technical support, and attractive discounts on bulk and project orders. Our team is ready to assist panel builders, contractors, and procurement teams with fast and reliable supply of Eaton Bussmann fuse products.
What does NH size 3 mean in fuse 630NHG3B?
NH size 3 refers to the physical dimension standard of the DIN-type fuse link. Size 3 determines the blade contact dimensions and the current rating range the fuse can handle safely, and it must be matched to a compatible NH3-rated fuse base or withdrawable fuse carrier to ensure correct fitment and reliable electrical contact.
What does class gL-gG mean?
Class gL-gG is a general purpose fuse class per IEC 60269 that provides full-range overcurrent protection for both cables and general loads including motors and transformers in low voltage installations. The designation indicates the fuse is capable of interrupting any overcurrent from its minimum fusing current up to its rated breaking capacity.
What are the typical applications for the 630NHG3B?
The 630NHG3B 630A NH fuse link is used in low voltage switchgear panels, main and sub-distribution boards, motor control centres, transformer feeder circuits, and high-current cable feeder protection in industrial, commercial, and utility electrical installations.
Is the 630NHG3B compliant with IEC and DIN standards?
Yes, the Eaton Bussmann 630NHG3B is fully compliant with IEC 60269 and DIN EN 60269, the internationally recognised standards governing low-voltage fuse links. This compliance ensures the product meets defined time-current characteristics, breaking capacity requirements, and dimensional standards for NH size 3 fuse links.
How can I order the Eaton Bussmann 630NHG3B in Coimbatore?
Contact Shansen Enterprises, an authorized Eaton Bussmann channel partner in Coimbatore, via WhatsApp or email for pricing, stock availability, and bulk order discounts. We supply customers across Tamil Nadu and South India with genuine Eaton Bussmann products backed by manufacturer authorization.
