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MERSEN FUSE 12,5 URD 72 EF 0280 PC72UD13C280EF
The PC72UD13C280EF fuse provides high-speed interruption for power semiconductor protection with a 280A rating and dual IEC/UL voltage certifications. Features striker indication and open slot blade terminals for reliable industrial use.
£104.33
Why Choose the Mersen J300618 Protistor® High-Speed Semiconductor Fuse?
The Mersen J300618 is a premium Protistor® Size 72 aR square body high-speed semiconductor fuse engineered to provide exceptional protection for modern power conversion equipment. Designed specifically to safeguard sensitive semiconductor devices, it delivers ultra-fast fault interruption and outstanding current limiting to protect IGBTs, thyristors, diodes and rectifiers from damaging short-circuit currents.
As part of Mersen's trusted Protistor® semiconductor fuse range, the J300618 features silver-plated contact surfaces, solidified sand technology for controlled arc characteristics and an integrated striker for remote indication. Its robust construction ensures dependable performance in demanding industrial environments while helping reduce equipment downtime and maintenance costs.
Rated at 280 A with a 1250 V AC IEC / 1300 V AC UL voltage rating, the J300618 is ideal for industrial drives, converters, inverters, UPS systems, renewable energy installations and other high-power semiconductor applications requiring reliable circuit protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 280 A current rating for industrial power electronics.
- 1250 V AC IEC / 1300 V AC UL voltage rating.
- Excellent current-limiting characteristics reduce fault energy.
- Integrated striker for remote monitoring and indication.
- Designed to maximise semiconductor reliability and equipment uptime.
Key Features
- Mersen Protistor® Size 72 aR series.
- 280 A rated current.
- 1250 V AC (IEC) / 1300 V AC (UL) rated voltage.
- Square body fuse with open slot blade connections.
- Integrated striker indicator.
- Silver-plated contact surfaces.
- Solidified sand construction for controlled arc performance.
- Designed for protection of IGBTs, SCRs, diodes and rectifiers.
Reliable Protection for Industrial Power Electronics
High-speed semiconductor fuses are engineered to interrupt fault currents before excessive thermal or electrical energy reaches sensitive semiconductor devices. Their low let-through energy helps improve equipment reliability while reducing maintenance costs and unplanned downtime.
The Mersen Protistor® Size 72 range is trusted worldwide by OEMs, panel builders and industrial engineers for demanding power conversion applications where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives.
- Industrial motor control systems.
- Power converters and inverters.
- UPS systems.
- Renewable energy installations.
- Battery energy storage systems.
- Industrial power supplies.
- Semiconductor protection circuits.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 1250 V | |
| Item number | J300618 | |
| Catalogue No | PC72UD13C280EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 72 aR 1250VAC IEC 1300VAC UL 280A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340331042 | |
| Rated voltage AC UL | 1300 V | |
| Rated voltage AC IEC | 1250 V | |
| Ampere Rating | 280 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 72 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 85 kA²s | |
| Melting I2t | 10.3 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 126 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Open Slot Blades | |
| Product Width | 59 mm | |
| Product Length | 149.4 mm | |
| Product Height | 63 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.274 kg | |
| Sell Pack Width | 157 mm | |
| Sell Pack Length | 205 mm | |
| Sell Pack Height | 80 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.758 kg | |
| Power Dissipation at Rated Current Value | 72 W | |
| HS Code | 85351000 |
Frequently Asked Questions
What is the Mersen J300618 used for?
The J300618 is designed to protect power semiconductor devices such as IGBTs, thyristors, rectifiers and diodes from damaging short-circuit currents.
What is the current rating of this fuse?
The fuse has a rated current of 280 A for industrial semiconductor protection applications.
What voltage is the J300618 designed for?
It is rated for 1250 V AC (IEC) and 1300 V AC (UL) systems.
What does the aR fuse characteristic mean?
The aR operating characteristic provides ultra-fast short-circuit protection specifically for semiconductor devices without overload protection.
Where is this fuse commonly installed?
It is commonly installed in industrial drives, converters, UPS systems, renewable energy equipment and other power conversion applications.
Trusted by Industrial Engineers Worldwide
Mersen Protistor® semiconductor fuses are trusted worldwide for delivering dependable, ultra-fast protection for industrial power electronics, helping maximise equipment availability and protect valuable semiconductor devices.
