Why Choose the Mersen NH00AM69V63 NH Fuse-Link?
The Mersen NH00AM69V63 is a high-performance NH size 00 aM fuse-link designed to provide dependable short-circuit protection for motors and associated industrial equipment. Rated at 63 A and 690 V AC, it is suitable for use in demanding motor circuits, control panels and low-voltage power distribution systems.
As an aM utilisation category fuse-link, the NH00AM69V63 provides partial-range protection specifically intended for motor circuits. Its strong current-limiting performance helps reduce the thermal and mechanical effects of short-circuit currents, while its low power losses support efficient operation. Separate overload protection, such as a motor protection relay or overload relay, must be used alongside the fuse.
The fuse-link features a durable ceramic body, silver-plated copper blade contacts, live gripping lugs and a convenient double indication system. Its standard NH00 format enables installation in compatible NH fuse bases and switch-fuse equipment, making it a reliable choice for professional industrial electrical installations.
Key Advantages
- Reliable short-circuit protection for industrial motor circuits.
- 63 A current rating for appropriately coordinated motor applications.
- 690 V AC rated voltage suitable for demanding industrial networks.
- High 80 kA AC breaking capacity for effective fault interruption.
- Strong current-limiting performance helps minimise equipment damage.
- Double indication system allows easier identification of fuse operation.
- Live gripping lugs support safe handling with suitable NH replacement equipment.
Key Features
- Mersen NH aM motor-circuit fuse-link series.
- NH00 fuse size with a 30 mm body width.
- 63 A rated current.
- 690 V AC rated voltage.
- aM partial-range operating characteristic.
- 80 kA maximum AC breaking capacity.
- Double visual indication system.
- Live gripping lugs for use with an appropriate NH fuse puller.
- Silver-plated copper plain-blade terminals.
- Robust ceramic insulating body.
Reliable Short-Circuit Protection for Motor Circuits
The Mersen NH00AM69V63 is engineered to interrupt high fault currents rapidly, helping protect motor cables, contactors and other circuit components against the damaging effects of short circuits. Its current-limiting characteristics restrict the peak fault current and the amount of energy passed through to downstream equipment.
Because this is an aM partial-range fuse-link, it is intended for short-circuit protection rather than overload protection. The installation must therefore include correctly coordinated overload protection. Selection, installation and replacement should be carried out by a suitably qualified electrical professional using compatible NH equipment.
Typical Applications
- Industrial motor circuits and motor control centres.
- Motor starters and contactor-based control systems.
- Pumps, fans, compressors and conveyor systems.
- Machine-building and OEM control panels.
- Industrial switchgear and power distribution assemblies.
- Manufacturing and process automation equipment.
