Why Choose the Mersen NH1UD69V100PV Protistor® High Speed Fuse?
The Mersen NH1UD69V100PV is a premium Protistor® high speed semiconductor fuse engineered to provide exceptional protection for modern power electronic equipment. Specifically designed to safeguard IGBTs, thyristors, diodes and other semiconductor devices, it delivers ultra-fast fault interruption to minimise equipment damage and maximise system reliability.
Manufactured in the standard NH Size 1 format, this square body fuse complies with DIN NH system requirements for worldwide compatibility with NH fuse bases, fuse switch disconnectors and industrial switchgear. Pure silver fuse elements embedded in solidified silica sand provide excellent current limiting characteristics, low I²t values and a high interrupting rating for demanding industrial environments.
With a 100 A current rating, 690 V AC IEC / 700 V AC UL voltage rating and an aR operating characteristic, the NH1UD69V100PV is ideally suited to protecting variable frequency drives, industrial inverters, UPS systems, rectifiers and renewable energy power conversion equipment.
Key Advantages
Designed specifically for semiconductor protection.
100 A rated current for industrial power electronic applications.
690 V AC IEC / 700 V AC UL voltage rating.
Ultra-fast aR operating characteristic.
170 kA breaking capacity for dependable fault interruption.
Double visual indicator for fast maintenance and fuse status identification.
Key Features
Mersen Protistor® semiconductor fuse.
Model: NH1UD69V100PV.
100 A rated current.
690 V AC IEC / 700 V AC UL.
NH Size 1 square body construction.
aR high-speed semiconductor protection.
Double visual operation indicator.
Silver-plated plain blade terminals.
Pure silver fuse elements for low energy let-through.
Compatible with optional field-mountable microswitch accessories.
Reliable Semiconductor Protection
High speed semiconductor fuses are designed to interrupt fault currents before expensive power electronic components can be damaged. Their rapid operation limits thermal stress and significantly reduces the energy transferred to protected devices, helping extend equipment life and minimise costly downtime.
The Mersen NH1UD69V100PV is widely used throughout industrial automation, renewable energy systems, motor drives, UPS installations and power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
Variable frequency drives (VFDs).
Variable speed drives (VSDs).
Industrial inverters and converters.
Rectifier equipment.
UPS systems.
Renewable energy power converters.
Industrial automation equipment.
Semiconductor protection circuits.
Technical Specifications
Item number
W320363
Catalogue No
NH1UD69V100PV
Description
Square Body High-Speed Fuse Protistor® NH Size 1 aR 690VAC IEC 700VAC UL 100A With Double indicator Plain Blades
EAN/UPC Code
3605340358452
Rated voltage AC UL
700 V
Rated voltage AC IEC
690 V
Ampere Rating
100 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
NH1
Mounting
Clip
Clearing I2t At Rated Voltage
1570 A²s
Melting I2t
288 A²s
AC Max I.R./Breaking Capacity
I1: 170 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
1.26 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
0.42 kg
Power Dissipation at Rated Current Value
45.8 W
HS Code
85361090
Country of Manufacture
Tunisia
Frequently Asked Questions
What is the Mersen NH1UD69V100PV used for?
The NH1UD69V100PV is designed to protect semiconductor devices including IGBTs, thyristors and diodes used in industrial power conversion equipment.
What is the current rating of this fuse?
This fuse has a 100 A rated current.
What voltage is the NH1UD69V100PV rated for?
It is rated for 690 V AC (IEC) and 700 V AC (UL) applications.
Does the fuse include a blown fuse indicator?
Yes. The NH1UD69V100PV features a double visual indicator and supports optional field-mountable microswitch accessories.
Where is this fuse commonly installed?
It is commonly installed in variable frequency drives, power converters, industrial UPS systems, renewable energy equipment and other semiconductor protection applications.
Trusted Protection for Industrial Power Electronics
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, machine builders and industrial engineers to provide reliable protection for critical power electronic equipment in demanding industrial applications.
Item number
W320363
Catalogue No
NH1UD69V100PV
Description
Square Body High-Speed Fuse Protistor® NH Size 1 aR 690VAC IEC 700VAC UL 100A With Double indicator Plain Blades
EAN/UPC Code
3605340358452
Rated voltage AC UL
700 V
Rated voltage AC IEC
690 V
Ampere Rating
100 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
NH1
Mounting
Clip
Clearing I2t At Rated Voltage
1570 A²s
Melting I2t
288 A²s
AC Max I.R./Breaking Capacity
I1: 170 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
1.26 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
0.42 kg
Power Dissipation at Rated Current Value
45.8 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...