Why Choose the Mersen NH4AM69V1000-8 Motor Protection Fuse Link?
The Mersen NH4AM69V1000-8 is a heavy-duty DIN NH aM fuse link engineered to provide dependable short-circuit protection for high-power motor circuits and industrial electrical equipment. Manufactured by Mersen, this NH4 fuse link is specifically designed to tolerate the high inrush currents associated with motor starting while delivering rapid interruption of high prospective fault currents.
As part of the trusted Mersen NH aM 690 V AC fuse series, this fuse link incorporates live gripping lugs and a top operating indicator, enabling faster identification of an operated fuse and safer replacement using an approved NH fuse puller. Its robust ceramic body and silver-plated copper blade terminals provide excellent mechanical strength and long service life in demanding industrial environments.
With a rated current of 1000 A, a 690 V AC operating voltage and a high 120 kA breaking capacity, the NH4AM69V1000-8 is ideal for motor control centres, industrial switchboards, process plants and heavy-duty machinery requiring reliable motor short-circuit protection.
Key Advantages
- Designed specifically for motor circuit short-circuit protection.
- 1000 A rated current for high-power industrial motors.
- 690 V AC rated voltage for demanding low-voltage installations.
- aM operating characteristic optimised for motor applications.
- 120 kA AC breaking capacity for reliable fault interruption.
- Top indicator provides rapid fuse status identification.
- Live gripping lugs enable safer fuse replacement.
- Current-limiting design helps minimise equipment damage during faults.
Key Features
- Mersen NH aM motor protection fuse series.
- NH4 DIN fuse size.
- 1000 A rated current.
- 690 V AC rated voltage.
- 120 kA AC breaking capacity.
- aM partial-range protection characteristic.
- Top operating indicator.
- Live gripping lugs.
- Silver-plated copper blade terminals.
- Ceramic insulating body.
- Clip mounting in compatible NH fuse bases.
- RoHS compliant.
Reliable Short-Circuit Protection for Industrial Motors
The Mersen NH4AM69V1000-8 incorporates an aM operating characteristic specifically developed for motor protection. It allows normal motor starting currents to pass without nuisance operation while rapidly clearing severe short-circuit faults that could otherwise damage motors, cables, contactors and switchgear. As with all aM fuse links, it should be used alongside suitable thermal overload protection.
Its high current-limiting capability helps reduce thermal stress and electrodynamic forces throughout the electrical installation, improving equipment protection and reducing downtime following electrical faults.
Typical Applications
- Motor control centres (MCCs).
- Industrial motor protection.
- Heavy-duty manufacturing equipment.
- Industrial switchboards.
- Pumps, compressors and conveyors.
- Mining, utilities and process automation systems.
