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MERSEN FUSE 6,9 URD 33 TT F 1400 6,9URD33TTF1400
Engineered for demanding industrial applications, the PC33UD69V1400TF delivers rapid and reliable circuit protection for power electronics, ensuring minimal downtime and safeguarding sensitive equipment.
£187.45
Why Choose the Mersen E300085 Protistor® High Speed Fuse?
The Mersen E300085, catalogue number PC33UD69V1400TF, is a premium square body high speed semiconductor fuse developed to provide exceptional protection for modern power electronic equipment. As part of the renowned Mersen Protistor® Size 33 series, this fuse is engineered to safeguard sensitive semiconductor devices including IGBTs, thyristors and diodes against damaging short circuits and fault currents.
Designed for demanding industrial applications, the E300085 combines ultra-fast fault interruption with excellent current limiting performance to minimise let-through energy and help protect expensive equipment. Its silver-plated contacts, reinforced terminals and solidified sand construction deliver dependable long-term performance even in harsh operating environments.
With a 1400 A current rating and 690 V AC IEC / 700 V AC UL voltage rating, the Mersen E300085 is ideally suited for high-power drives, converters, UPS systems, renewable energy installations and industrial automation equipment requiring reliable semiconductor protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 1400 A current rating for high-power industrial applications.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Excellent protection for IGBTs, thyristors and diode modules.
- Low let-through energy helps reduce equipment damage.
- Robust square body construction with reinforced terminals.
Key Features
- Mersen Protistor® Size 33 series.
- 1400 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- Square body design with flush ends and metric threaded mounting.
- Integrated striker indicator for fuse status indication.
- Silver-plated contact surfaces.
- Designed specifically for semiconductor protection.
Reliable Protection for High Power Electronics
High speed semiconductor fuses are designed to interrupt excessive fault currents before damage can occur to sensitive electronic components. The Mersen Protistor® range provides exceptionally fast operation with low I²t values, helping maximise equipment reliability while reducing maintenance costs in demanding industrial applications.
The E300085 is widely used wherever high-performance semiconductor protection is required, delivering reliable operation in motor drives, renewable energy systems, industrial converters and heavy-duty power electronics.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and rectifiers.
- UPS and backup power equipment.
- Renewable energy inverter systems.
- Heavy industrial automation and manufacturing equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | E300085 | |
| Catalogue No | PC33UD69V1400TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 1400A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340323290 | |
| 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 Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 73 mm | |
| Product Length | 50.6 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.4168 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 245 mm | |
| Sell Pack Height | 95 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.8056 kg | |
| Power Dissipation at Rated Current Value | 160 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen E300085 used for?
It provides ultra-fast protection for semiconductor devices including IGBTs, thyristors and diodes used in industrial power conversion equipment.
What is the current rating of this fuse?
The Mersen E300085 has a rated current of 1400 A.
What voltage is the fuse designed for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
What does the aR characteristic indicate?
The aR operating class provides partial-range ultra-fast protection specifically designed for semiconductor devices against short-circuit faults.
Which applications commonly use this fuse?
It is commonly installed in variable speed drives, converters, UPS systems, renewable energy equipment and industrial automation systems.
Trusted for Critical Semiconductor Protection
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and industrial engineers for dependable protection of high-value power electronic equipment in demanding industrial environments.
