High-speed Protistor® fuse with 250A rating, double visual indicators, plain blades, and compatibility with IEC and UL standards for industrial applications.
£109.58
The Mersen NH1GS69V250PV is a high-performance Protistor® NH size 1 high-speed semiconductor fuse engineered to provide advanced protection for power semiconductor devices and modern power conversion equipment. Designed for demanding industrial applications, this fuse delivers rapid fault interruption and low let-through energy to minimise damage caused by short-circuit conditions.
As part of the renowned Mersen Protistor® NH gS series, the NH1GS69V250PV offers comprehensive protection for semiconductor devices including diodes, thyristors, GTOs and IGBTs. Its silver-plated contacts, pure silver fuse elements and solidified sand construction ensure excellent current-limiting performance and high interrupting capacity for reliable operation in industrial environments.
With a rated current of 250 A and a rated voltage of 690 V AC (IEC) / 700 V AC (UL), this NH size 1 fuse is ideal for industrial drives, inverters, rectifiers, UPS systems and photovoltaic power conversion equipment. The fuse incorporates a double visual indicator for simplified maintenance and fault identification.
High-speed semiconductor fuses such as the Mersen NH1GS69V250PV are specifically designed to interrupt fault currents before excessive energy reaches sensitive semiconductor devices. Their advanced current-limiting performance helps improve equipment reliability while reducing repair costs and production downtime.
The Protistor® NH gS range is widely used throughout industrial automation, renewable energy, motor control and power conversion systems where dependable protection of semiconductor components is essential for safe and continuous operation.
| Item number | H322375 |
|---|---|
| Catalogue No | NH1GS69V250PV |
| Description | Square Body High-Speed Fuse Protistor® NH Size 0 gS 690VAC IEC 700VAC UL 250A With Double indicator Plain Blades |
| EAN/UPC Code | 3605340360219 |
| Rated voltage AC UL | 700 V |
| Rated voltage AC IEC | 690 V |
| Ampere Rating | 250 A |
| RoHS Compliant | Yes |
| AC or DC | AC |
| Speed/Characteristic | gS |
| Fuse Size | NH0 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 77150 A²s |
| Melting I2t | 15420 A²s |
| AC Max I.R./Breaking Capacity | I1: 160 kA |
| Indication System | Yes |
| Indication System Type | Double indicator |
| Connection/Terminal Material | Brass |
| Connection/Terminal Type | Plain Blades |
| Product Width | 40 mm |
| Product Length | 135 mm |
| Product Height | 64 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.2999 kg |
| Sell Pack Width | 125 mm |
| Sell Pack Length | 140 mm |
| Sell Pack Height | 70 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.4333 kg |
| Power Dissipation at Rated Current Value | 29 W |
| HS Code | 85361090 |
| Country of Manufacture | Tunisia |
It is designed to protect power semiconductor devices such as IGBTs, thyristors, diodes and GTOs used in industrial power conversion equipment.
The NH1GS69V250PV has a 250 A current rating.
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
Yes. It features a double visual indicator to simplify maintenance and fuse condition monitoring.
It is installed in compatible NH fuse bases and switch disconnectors used in industrial drives, converters, UPS systems and photovoltaic power equipment.
Mersen Protistor® semiconductor fuses are trusted by panel builders, OEM manufacturers and industrial engineers worldwide for reliable protection of modern power electronic equipment.
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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...