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MERSEN FUSE 6,9 URD 73 TTF 1600 6,9URD73TTF1600
High-speed aR class Protistor® fuse with 1600A rating, 690VAC IEC and 700VAC UL rated voltage, featuring flush striker ends and metric threads for bolted mounting. Ideal for semiconductor protection and industrial power electronics.
£220.29
Why Choose the Mersen B301301 High-Speed Semiconductor Fuse?
The Mersen B301301 is an industrial high-speed semiconductor fuse intended to protect sensitive power electronic components against damaging short-circuit currents. Designed for demanding electrical equipment, it is suitable for systems containing devices such as IGBTs, thyristors, power diodes and rectifiers, where rapid fault interruption is essential.
High-speed semiconductor fuses operate considerably faster than conventional industrial fuse-links. By limiting peak fault current and reducing energy let-through, the B301301 can help minimise thermal stress, prevent extensive component damage and improve the operational reliability of valuable power conversion equipment.
The Mersen B301301 is suitable for professional replacement, maintenance and original equipment applications. Its complete current rating, voltage rating, fuse size, terminal arrangement and operating data should be confirmed from the product label or official Mersen documentation before ordering or installation.
Key Advantages
- High-speed protection for sensitive semiconductor devices.
- Rapid fault interruption helps reduce damaging energy let-through.
- Suitable for protecting IGBTs, thyristors, diodes and rectifiers.
- Helps minimise equipment damage and unplanned production downtime.
- Designed for demanding industrial power electronic applications.
- Manufactured by Mersen, a recognised specialist in circuit protection.
Key Features
- Manufacturer: Mersen.
- Manufacturer reference: B301301.
- High-speed semiconductor fuse technology.
- Fast operating response during short-circuit conditions.
- Low fault-energy let-through for enhanced component protection.
- Industrial-grade construction.
- Suitable for equipment-specific fuse mounting arrangements.
- Designed for installation by qualified electrical professionals.
Reliable Protection for Industrial Power Electronics
Semiconductor devices can be damaged within milliseconds when subjected to excessive fault current. The Mersen B301301 is designed to interrupt these currents rapidly, helping restrict the electrical and thermal energy transferred to sensitive components before permanent damage occurs.
Correct fuse selection is critical. Before replacing an existing fuse, confirm that the B301301 matches the original product's current rating, voltage rating, utilisation category, breaking capacity, dimensions, terminal style and applicable approvals. A conventional industrial fuse should not be substituted unless expressly permitted by the equipment manufacturer.
Typical Applications
- Variable frequency drives and industrial motor controls.
- Power converters and rectifier systems.
- Industrial inverters.
- Uninterruptible power supply equipment.
- Renewable energy conversion systems.
- Battery energy storage equipment.
- Industrial automation machinery.
- Semiconductor-based power supplies.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | B301301 | |
| Catalogue No | PC73UD69V16CTF | |
| Description | Square Body High-Speed Fuse Protistor® Size 73 aR 690VAC IEC 700VAC UL 1600A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340339444 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 1600 A | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 73 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 5740 kA²s | |
| Melting I2t | 1430 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 150 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 73 mm | |
| Product Length | 74 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 1.22 kg | |
| Sell Pack Width | 110 mm | |
| Sell Pack Length | 125 mm | |
| Sell Pack Height | 75 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 1.22 kg | |
| Power Dissipation at Rated Current Value | 203 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen B301301 used for?
The Mersen B301301 is intended to protect sensitive semiconductor devices in industrial power electronic equipment against damaging short-circuit currents.
Which components can the B301301 protect?
High-speed semiconductor fuses are commonly used to protect IGBTs, thyristors, power diodes, rectifiers and related solid-state power components.
Can the B301301 be replaced with a standard fuse?
A standard fuse should not be used unless its electrical ratings, operating speed, breaking capacity, dimensions and approvals fully comply with the equipment manufacturer's requirements.
Where is the Mersen B301301 commonly installed?
It may be installed in industrial drives, converters, inverters, UPS systems, renewable energy equipment and other semiconductor-based power conversion systems.
What should be checked before ordering the B301301?
Confirm the complete part number, rated current, rated voltage, fuse characteristic, breaking capacity, physical dimensions and terminal arrangement against the existing fuse or official equipment documentation.
Trusted for Industrial Circuit Protection
Mersen high-speed semiconductor fuses are used by equipment manufacturers, panel builders and maintenance engineers to protect valuable power electronic systems in demanding industrial environments.
