Why Choose the Mersen NH1GS69V280PV Protistor® High-Speed Fuse?
The Mersen NH1GS69V280PV (Item Number L302897) is a premium Protistor® NH Size 1 gS high-speed semiconductor fuse engineered to provide comprehensive protection for modern power electronic equipment. Rated at 280 A with a voltage rating of 690 V AC (IEC) / 700 V AC (UL), it is specifically designed to protect semiconductors, cables and associated equipment against both overload and short-circuit conditions.
Featuring a gS utilisation category, the NH1GS69V280PV provides full-range protection for power semiconductors including IGBTs, thyristors, GTOs and diodes. Manufactured using precision die-cut pure silver fuse elements embedded in solidified silica sand, the fuse delivers exceptionally low let-through energy, outstanding current limitation and a high interrupting capacity for maximum equipment protection.
Built to DIN NH standards with plain blade contacts and a double visual indicator, this Protistor® fuse integrates seamlessly into NH modular fuse holders and switch disconnectors, making it ideal for industrial drives, renewable energy systems, UPS installations and power conversion equipment worldwide.
Key Advantages
Full-range gS semiconductor protection.
280 A current rating for demanding industrial applications.
690 V AC IEC / 700 V AC UL voltage rating.
Protects both semiconductor devices and associated wiring.
Very low I²t reduces stress on sensitive electronic components.
Double indicator enables fast fuse status identification.
Key Features
Mersen Protistor® NH1GS69V280PV.
Item number L302897.
NH Size 1 square-body fuse.
280 A nominal current rating.
690 V AC IEC / 700 V AC UL.
gS utilisation category.
Plain silver-plated blade contacts.
Double visual indication system.
Pure silver fuse elements.
Solidified silica sand filling.
Non-magnetic construction.
Designed for Advanced Semiconductor Protection
Unlike conventional industrial fuses, Protistor® gS semiconductor fuses provide full-range protection by clearing both overloads and short circuits. Their extremely fast operating characteristics significantly reduce thermal and mechanical stress on semiconductor devices, extending equipment life while minimising costly downtime.
The NH1GS69V280PV is designed for worldwide compatibility with NH modular fuse holders and fuse switch disconnectors conforming to DIN standards. Its double visual indicator simplifies maintenance while ensuring rapid identification following fuse operation.
Typical Applications
Variable frequency drives (VFDs).
Industrial power converters.
Renewable energy inverter systems.
UPS systems.
Motor drives and servo systems.
Protection of IGBTs, thyristors, GTOs and diode modules.
Industrial rectifiers.
Power conversion equipment.
Technical Specifications
Item number
L302897
Catalogue No
NH1GS69V280PV
Description
Square Body High-Speed Fuse Protistor® NH Size 0 gS 690VAC IEC 700VAC UL 280A With Double indicator Plain Blades
EAN/UPC Code
3605340375053
Rated voltage AC UL
700 V
Rated voltage AC IEC
690 V
Ampere Rating
280 A
RoHS Compliant
Yes
AC or DC
AC
Speed/Characteristic
gS
Fuse Size
NH0
Mounting
Clip
Clearing I2t At Rated Voltage
93000 A²s
Melting I2t
18665 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
33 W
HS Code
85361090
Country of Manufacture
Tunisia
Frequently Asked Questions
What is the Mersen NH1GS69V280PV used for?
The NH1GS69V280PV protects power semiconductor devices and associated equipment against overloads and short circuits in industrial power electronic systems.
What does the gS utilisation category mean?
The gS category provides full-range protection, safeguarding both semiconductor devices and associated wiring against overload and fault currents.
What is the current rating?
The fuse has a nominal current rating of 280 A.
What voltage is this fuse rated for?
The NH1GS69V280PV is rated at 690 V AC (IEC) and 700 V AC (UL).
Which semiconductor devices can it protect?
It is designed for protecting IGBTs, thyristors, GTOs, diodes and other sensitive semiconductor devices used in industrial power conversion equipment.
Trusted Semiconductor Protection Worldwide
Mersen Protistor® NH semiconductor fuses are trusted worldwide by OEMs, electrical engineers and panel builders for reliable protection of industrial power electronic equipment.
Item number
L302897
Catalogue No
NH1GS69V280PV
Description
Square Body High-Speed Fuse Protistor® NH Size 0 gS 690VAC IEC 700VAC UL 280A With Double indicator Plain Blades
EAN/UPC Code
3605340375053
Rated voltage AC UL
700 V
Rated voltage AC IEC
690 V
Ampere Rating
280 A
RoHS Compliant
Yes
AC or DC
AC
Speed/Characteristic
gS
Fuse Size
NH0
Mounting
Clip
Clearing I2t At Rated Voltage
93000 A²s
Melting I2t
18665 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
33 W
HS Code
85361090
Country of Manufacture
Tunisia
No documents available for this product.
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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...