MERSEN FUSE 12,5 URD 70 TT F 0080 12,5URD70TTF0080
The PC70UD13C80TF fuse offers high breaking capacity and rapid response for semiconductor protection in industrial and power electronics applications, rated up to 1250VAC IEC and 1300VAC UL with aR characteristic and flush striker ends.
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Why Choose the Mersen N300484 Protistor® High-Speed Fuse?
The Mersen N300484, catalogue number PC70UD13C80TF, is a Protistor® Size 70 square body high-speed semiconductor protection fuse engineered to provide superior short-circuit protection for sensitive power electronic equipment. Featuring an ultra-fast aR operating characteristic, it is specifically designed to protect IGBTs, thyristors, GTOs, diodes and other semiconductor devices used in demanding industrial power conversion systems.
Rated at 80 A, the N300484 operates at 1250 V AC (IEC) and 1300 V AC (UL), making it ideal for modern high-voltage power conversion equipment. Constructed using pure silver fuse elements embedded in solidified sand with silver-plated contact surfaces, it delivers excellent current limitation, low let-through energy (I²t) and dependable high-speed fault protection.
The fuse features flush-end metric threaded terminals with an integrated striker indicator for remote fuse indication when used with compatible microswitch accessories. Its compact Size 70 square body design is suitable for industrial drives, renewable energy systems, UPS installations and other high-performance semiconductor applications.
Key Advantages
Ultra-fast aR semiconductor protection fuse.
80 A continuous current rating.
1250 V AC IEC / 1300 V AC UL operation.
Protects IGBTs, thyristors, GTOs and power semiconductors.
Integrated striker for remote status indication.
Pure silver fuse elements for excellent current limitation.
Low I²t helps minimise semiconductor damage.
Designed for demanding industrial power conversion equipment.
Engineered for High-Voltage Semiconductor Protection
Protistor® high-speed semiconductor fuses are designed to interrupt fault currents before excessive thermal energy can damage sensitive semiconductor devices. Their extremely fast operating speed, high interrupting capacity and low let-through energy help maximise equipment reliability while reducing maintenance costs and unplanned downtime.
The Mersen N300484 is widely used by OEMs and industrial engineers protecting high-voltage drives, renewable energy converters, UPS systems and industrial power conversion equipment operating up to 1300 V AC.
Typical Applications
High-voltage variable frequency drives.
Industrial power converters.
Renewable energy inverters.
UPS systems.
Traction and transportation equipment.
Motor control centres.
Industrial automation systems.
Semiconductor protection installations.
Technical Specifications
Item number
N300484
Catalogue No
PC70UD13C80TF
Description
Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 80A With Striker Flush ends metric threads
EAN/UPC Code
3605340329131
Rated voltage AC UL
1300 V
Rated voltage AC IEC
1250 V
Ampere Rating
80 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
70
Mounting
Bolted
Clearing I2t At Rated Voltage
3780 A²s
Melting I2t
470 A²s
AC Max I.R./Breaking Capacity
I1: 126 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Brass
Connection/Terminal Type
Flush ends
Product Width
39.8 mm
Product Length
74 mm
Product Height
49.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
1.017 kg
Sell Pack Width
85 mm
Sell Pack Length
133 mm
Sell Pack Height
55 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.339 kg
Power Dissipation at Rated Current Value
27 W
HS Code
85351000
Frequently Asked Questions
What is the Mersen N300484 used for?
The Mersen N300484 is designed to protect semiconductor devices including IGBTs, thyristors, GTOs and diodes from damaging short-circuit faults in high-voltage industrial power electronic equipment.
What is the current rating?
The Mersen N300484 has a continuous current rating of 80 A.
What voltage is the fuse rated for?
The fuse is rated for 1250 V AC (IEC) and 1300 V AC (UL).
Does the N300484 include a striker indicator?
Yes. The fuse includes an integrated striker indicator that can operate compatible remote indication accessories.
What does the aR characteristic mean?
The aR characteristic identifies an ultra-fast semiconductor protection fuse intended specifically for short-circuit protection of sensitive semiconductor devices.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, machine builders and industrial maintenance engineers for reliable protection of critical high-power electronic equipment.
Item number
N300484
Catalogue No
PC70UD13C80TF
Description
Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 80A With Striker Flush ends metric threads
EAN/UPC Code
3605340329131
Rated voltage AC UL
1300 V
Rated voltage AC IEC
1250 V
Ampere Rating
80 A
AC or DC
AC
Speed/Characteristic
aR
Fuse Size
70
Mounting
Bolted
Clearing I2t At Rated Voltage
3780 A²s
Melting I2t
470 A²s
AC Max I.R./Breaking Capacity
I1: 126 kA
Indication System
Yes
Indication System Type
Striker
Connection/Terminal Material
Silver-Plated Brass
Connection/Terminal Type
Flush ends
Product Width
39.8 mm
Product Length
74 mm
Product Height
49.5 mm
Sell Pack Quantity
3 EA
Sell Pack Weight
1.017 kg
Sell Pack Width
85 mm
Sell Pack Length
133 mm
Sell Pack Height
55 mm
Product group
Semiconductor Protection Fuses
Body/Insulating Material
Ceramic
Product Weight
0.339 kg
Power Dissipation at Rated Current Value
27 W
HS Code
85351000
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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...