Why Choose the Mersen NH4AGG69V1000 NH Fuse-Link?
The Mersen NH4AGG69V1000 is a heavy-duty DIN NH gG low voltage fuse-link designed to provide dependable full-range protection for high-current electrical distribution systems. Manufactured by Mersen, this NH4a fuse-link protects cables, conductors and industrial equipment against both overload and short-circuit currents.
Part of the established Mersen NH gG 690 V AC fuse-link series, the NH4AGG69V1000 has a rated current of 1000 A, an AC voltage rating of 690 V and a DC voltage rating of 250 V. Its high-current construction makes it suitable for main incoming supplies, industrial switchboards and large low voltage distribution networks.
The fuse-link features standard NH blade contacts, live gripping lugs and a centre indicator for clear identification when the fuse has operated. Its robust NH4a body and 100 mm width support reliable installation in compatible fuse bases and switch-fuse equipment.
Key Advantages
- Heavy-duty NH4a fuse-link for high-current distribution systems.
- 1000 A rated current for demanding industrial installations.
- 690 V AC and 250 V DC voltage ratings.
- Full-range gG protection against overloads and short circuits.
- Current-limiting operation helps reduce the effects of high fault currents.
- Centre indicator allows quick identification of an operated fuse-link.
- Live gripping lugs support removal using an approved NH fuse puller.
- Standard blade-contact format for compatible NH4a fuse bases.
Key Features
- Mersen NH gG 690 V AC fuse-link series.
- Catalogue number: NH4AGG69V1000.
- Mersen item number: H1054304.
- Fuse size: NH4a.
- Rated current: 1000 A.
- Rated AC voltage: 690 V AC.
- Rated DC voltage: 250 V DC.
- gG utilisation category for full-range circuit protection.
- Centre operated-fuse indicator.
- Live gripping lugs.
- Standard DIN NH blade contacts.
- 100 mm body width.
Reliable Protection for High-Current Power Distribution
The Mersen NH4AGG69V1000 provides full-range protection from low-level overload currents through to severe short-circuit faults. Its gG operating characteristic allows it to be used as the primary protective fuse for cables, feeders and general low voltage distribution equipment.
The current-limiting performance of the fuse-link helps reduce thermal and electrodynamic stress on switchgear and connected equipment during fault conditions. Installation and replacement should be completed by qualified electrical personnel using a compatible NH4a fuse base, suitable protective equipment and an approved NH fuse puller.
Typical Applications
- Main low voltage switchboards.
- High-current power distribution panels.
- Industrial feeder and cable protection.
- Manufacturing and process facilities.
- Commercial and infrastructure power systems.
- Switch-fuse disconnectors and fuse-combination units.
