Mersen NH4AM50V1250P-2 NH4 aM industrial fuse link rated at 1250 A and 500 V AC, designed for heavy-duty motor circuit short-circuit protection in industrial electrical systems.
£352.69
The Mersen NH4AM50V1250P-2 is a heavy-duty NH aM industrial fuse link engineered to provide dependable short-circuit protection for large motors, motor starters and high-power industrial electrical installations. Designed to DIN NH standards, this fuse delivers outstanding performance in demanding low-voltage power distribution systems where maximum reliability and high breaking capacity are essential.
Part of the trusted Mersen NH fuse-link range, the NH4AM50V1250P-2 is specifically intended for motor circuit protection. The aM operating characteristic allows motor starting currents to pass without nuisance operation while providing rapid interruption during short-circuit faults. Its ceramic construction, live gripping tags and integrated striker simplify installation, inspection and replacement within industrial switchgear.
Featuring a 1250 A current rating, 500 V AC operating voltage and NH4 size, this fuse is ideal for protecting large industrial motors, motor control centres, heavy-duty switchgear and power distribution equipment operating under demanding industrial conditions.
The Mersen NH4AM50V1250P-2 provides reliable short-circuit protection for high-current motor circuits and associated industrial equipment. Its aM characteristic is specifically developed to tolerate normal motor starting currents while delivering rapid disconnection during severe electrical faults, helping minimise equipment damage and production downtime.
Designed for demanding industrial environments, this NH4 fuse link combines exceptional fault interruption capability with robust ceramic construction, making it an excellent choice for electrical engineers, OEMs and industrial maintenance professionals responsible for high-power electrical installations.
| Current | 1250 A |
|---|---|
| Manufacturer | Mersen |
| Series | NH Fuse-links aM |
| Model | NH4AM50V1250P-2 |
| Product type | NH industrial fuse link |
| Fuse size | NH4 |
| Current rating | 1250 A |
| Rated voltage | 500 V AC |
| Utilisation category | aM |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 120 kA |
| Body width | 100 mm |
| Indicator | Integrated striker |
| Connection | Live gripping tags |
| Weight | Approx. 2.2 kg |
| Compliance | RoHS compliant |
| HS Code | 85361090 |
This NH fuse link is designed to provide short-circuit protection for large industrial motors and motor control circuits.
The Mersen NH4AM50V1250P-2 is rated at 1250 A.
This fuse is designed for operation on 500 V AC industrial electrical systems.
The aM utilisation category provides dedicated motor short-circuit protection while allowing temporary motor starting currents without unnecessary fuse operation.
It is commonly installed in motor control centres, industrial switchgear, power distribution equipment and heavy-duty electrical installations.
Mersen NH fuse links are trusted worldwide by electrical engineers and industrial maintenance professionals for delivering reliable fault protection, high breaking capacity and dependable performance in demanding industrial power systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...