80A high-speed fuse with NH 00 square body design, integral striker for indication, and DIN 80 blade terminals. Suitable for semiconductor protection in industrial electrical systems.
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Why Choose the Mersen C075534 Protistor® High-Speed Fuse?
The Mersen C075534 (Catalogue No. DN00UD10C80L) is a Protistor® NH Size 00 ultra-fast semiconductor fuse engineered for the protection of modern power electronic equipment. Designed with an aR operating class, it provides rapid short-circuit protection for sensitive semiconductor devices including IGBTs, thyristors, diodes and rectifiers used in industrial power conversion systems.
Manufactured using precision die-cut silver fuse elements embedded in solidified silica sand within a high-strength ceramic square body, the C075534 delivers exceptionally low let-through energy, excellent current limitation and high interrupting performance. Silver-plated contacts and a striker indicator ensure dependable operation and simplified maintenance in demanding industrial environments.
Rated at 80 A and 1000 V AC (IEC), the fuse is designed for installation in DIN Size 00 fuse holders and is ideal for industrial drives, converters, UPS systems, renewable energy equipment and other power electronic applications requiring reliable semiconductor protection.
Key Advantages
Ultra-fast aR semiconductor protection.
80 A current rating.
1000 V AC IEC operating voltage.
Very low I²t minimises semiconductor damage.
High 120 kA breaking capacity.
Silver-plated contacts with striker indication.
Key Features
Mersen Protistor® high-speed fuse.
NH Size 00 square-body construction.
80 A rated current.
1000 V AC IEC.
aR operating class.
DIN 80 blade terminals.
Ceramic body with silver fuse elements.
Ultra-fast current-limiting performance.
Technical Specifications
Manufacturer: Mersen
Series: Protistor®
Manufacturer Part Number: C075534
Catalogue Number: DN00UD10C80L
Product Type: High-speed semiconductor fuse
Fuse Size: NH Size 00
Rated Current: 80 A
Rated Voltage: 1000 V AC (IEC)
AC/DC: AC
Fuse Class: aR
Breaking Capacity: 120 kA AC
Pre-arcing I²t: 347 A²s
Clearing I²t: 2,420 A²s
Power Dissipation: 26.5 W
Terminal Type: DIN 80 blade terminals
Indication System: Striker
Weight: Approx. 0.22 kg
RoHS Compliant: Yes
Designed for High-Performance Power Electronics
The C075534 has been specifically engineered to interrupt fault currents before expensive semiconductor devices can be damaged. Its ultra-fast operation and low energy let-through help maximise equipment reliability, reduce maintenance costs and minimise downtime in demanding industrial applications.
The standard NH Size 00 construction allows straightforward installation into compatible DIN fuse bases and switch disconnectors used throughout industrial automation, renewable energy installations and power conversion systems.
Typical Applications
Variable frequency drives (VFDs).
Industrial inverters.
Power converters.
UPS systems.
Renewable energy equipment.
Semiconductor power supplies.
Technical Specifications
Item number
C075534
Catalogue No
DN00UD10C80L
Description
Square Body High-Speed Fuse Protistor® Size NH 00 aR 1000VAC IEC 80A With Striker DIN 80 Blades
EAN/UPC Code
3605340009835
Rated voltage AC IEC
1000 V
Ampere Rating
80 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
NH00
Mounting
Bolted
Clearing I2t At Rated Voltage
2420 A²s
Melting I2t
347 A²s
AC Max I.R./Breaking Capacity
I1: 120 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Copper
Connection/Terminal Type
DIN 80 Blades
Product Width
30 mm
Product Length
100 mm
Product Height
38.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
0.66 kg
Sell Pack Width
100 mm
Sell Pack Length
110 mm
Sell Pack Height
80 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.22 kg
Power Dissipation at Rated Current Value
26.5 W
HS Code
85361090
Country of Manufacture
Tunisia
Frequently Asked Questions
What is the Mersen C075534 used for?
The C075534 is an ultra-fast semiconductor fuse designed to protect IGBTs, thyristors, diodes and other power semiconductor devices against short-circuit faults.
What is the current rating?
The fuse has a rated current of 80 A.
What voltage is the fuse rated for?
The C075534 is rated for 1000 V AC (IEC).
What does the aR fuse class mean?
The aR operating class provides ultra-fast short-circuit protection specifically for semiconductor devices.
Does the fuse include an indicator?
Yes. The C075534 incorporates a striker indicator capable of operating a compatible microswitch for remote indication.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and maintenance engineers for dependable protection of industrial drives, converters and critical power electronic equipment.
Item number
C075534
Catalogue No
DN00UD10C80L
Description
Square Body High-Speed Fuse Protistor® Size NH 00 aR 1000VAC IEC 80A With Striker DIN 80 Blades
EAN/UPC Code
3605340009835
Rated voltage AC IEC
1000 V
Ampere Rating
80 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
NH00
Mounting
Bolted
Clearing I2t At Rated Voltage
2420 A²s
Melting I2t
347 A²s
AC Max I.R./Breaking Capacity
I1: 120 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Copper
Connection/Terminal Type
DIN 80 Blades
Product Width
30 mm
Product Length
100 mm
Product Height
38.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
0.66 kg
Sell Pack Width
100 mm
Sell Pack Length
110 mm
Sell Pack Height
80 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.22 kg
Power Dissipation at Rated Current Value
26.5 W
HS Code
85361090
Country of Manufacture
Tunisia
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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...