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MERSEN FUSE 6,9 URD 33 E F 1400 6,9URD33EF1400
The PC33UD69V1400EF delivers reliable circuit protection for demanding industrial and power electronics applications, rated at 1400A with high-speed operation to safeguard sensitive semiconductor components. Featuring a robust square body design with striker and open slot blades for visual fault indication and enhanced mechanical protection.
£183.34
Why Choose the Mersen J300227 Protistor® High-Speed Fuse?
The Mersen J300227 is a Protistor® Size 33 square body high-speed semiconductor fuse engineered to deliver exceptional protection for modern power electronic equipment. Featuring an aR ultra-fast operating characteristic, it provides rapid short-circuit protection for IGBTs, thyristors, diodes and rectifier assemblies, helping to minimise equipment damage and reduce costly downtime.
Manufactured by Mersen, the J300227 carries catalogue number PC33UD69V1400EF and is rated at 1400 A with a 690 V AC IEC / 700 V AC UL voltage rating. It features reinforced open slot blade terminals with an integrated striker indicator, making it ideal for demanding industrial power conversion and semiconductor protection applications.
Its ceramic square body construction, silver-plated copper terminals, high 200 kA AC breaking capacity and low let-through energy (I²t) provide dependable protection for variable frequency drives, UPS systems, industrial converters, renewable energy equipment and other critical power electronics.
Key Advantages
- Genuine Mersen Protistor® Size 33 semiconductor fuse.
- 1400 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast protection for semiconductor devices.
- 200 kA AC breaking capacity.
- Integrated striker indicator for simplified maintenance.
- Reinforced silver-plated open slot blade terminals.
- Low I²t helps minimise damage to sensitive power electronics.
Key Features
- Protistor® Size 33 square body construction.
- Catalogue number PC33UD69V1400EF.
- aR ultra-fast semiconductor protection.
- 1400 A current rating.
- 690 V AC IEC / 700 V AC UL rating.
- Open slot blade terminals with reinforced connections.
- Integrated striker indication system.
- Silver-plated copper contacts.
- Ceramic body construction.
- RoHS compliant.
Engineered for High-Power Semiconductor Protection
The Mersen J300227 is designed to interrupt high fault currents before they can damage expensive semiconductor devices. Its ultra-fast operating characteristic and carefully engineered arc-quenching technology help improve equipment reliability, extend component life and reduce maintenance costs in demanding industrial environments.
Protistor® semiconductor fuses are widely specified by OEMs, panel builders and maintenance engineers for industrial drives, converters, renewable energy systems, UPS installations and other critical power conversion equipment where dependable protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and rectifiers.
- UPS systems.
- Renewable energy inverters.
- Soft starters.
- Industrial power supplies.
- Semiconductor protection systems.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | J300227 | |
| Catalogue No | PC33UD69V1400EF | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 1400A With Striker Open Slot Blades | |
| EAN/UPC Code | 3605340325270 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 1400 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 2700 kA²s | |
| Melting I2t | 465 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | Reinforced Terminal | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Open Slot Blades | |
| Product Width | 73 mm | |
| Product Length | 126 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.556 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 245 mm | |
| Sell Pack Height | 100 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.852 kg | |
| Power Dissipation at Rated Current Value | 200 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen J300227 used for?
The J300227 is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other sensitive power electronic devices against short-circuit faults.
What is the current rating of the J300227?
The Mersen J300227 has a rated current of 1400 A.
What voltage is this fuse rated for?
It is rated for 690 V AC (IEC) and 700 V AC (UL).
What does the aR fuse characteristic mean?
The aR characteristic provides ultra-fast short-circuit protection specifically for semiconductor devices while allowing normal operating currents.
Which applications commonly use the J300227?
This fuse is commonly installed in variable frequency drives, converters, UPS systems, renewable energy equipment and other industrial power electronic applications.
Trusted Semiconductor Protection from Mersen
Mersen Protistor® high-speed semiconductor fuses are trusted worldwide by engineers and OEMs for delivering rapid fault protection that helps maximise equipment reliability in demanding industrial power conversion applications.
