Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
MERSEN FUSE 6,9 URD 31 TT F 0160 6,9URD31TTF0160
High-speed aR characteristic fuse designed for semiconductor protection with 690VAC IEC and 700VAC UL ratings at 160A, featuring a striker with flush ends and metric threads for secure installation.
£58.01
Why Choose the Mersen M300299 High Speed Semiconductor Fuse?
The Mersen M300299, catalogue number PC31UD69V160TF, is a premium square body ultra-fast semiconductor fuse engineered to protect sensitive power electronic devices against damaging short circuits. As part of the renowned Mersen Protistor® semiconductor fuse range, it delivers rapid fault interruption for industrial drives, power converters, UPS systems and other demanding applications requiring reliable semiconductor protection.
Designed with a 690 V AC (IEC) / 700 V AC (UL) voltage rating and a 160 A current rating, this aR class fuse provides exceptional protection for IGBTs, thyristors, diodes and similar semiconductor components. Its low let-through energy helps minimise damage to expensive equipment while improving system reliability.
Featuring a Size 31 square body design with flush end metric threaded terminals and an integrated striker indicator, the M300299 enables straightforward installation into compatible fuse holders and monitoring systems used throughout industrial power distribution equipment.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 160 A current rating for industrial power electronics.
- 690 V AC IEC / 700 V AC UL voltage rating.
- Designed to protect IGBTs, thyristors and semiconductor devices.
- Square body construction for dependable industrial installation.
- Integrated striker for remote indication and monitoring.
- High breaking capacity for reliable fault interruption.
Key Features
- Mersen Protistor® semiconductor fuse.
- Manufacturer part number: M300299.
- Catalogue number: PC31UD69V160TF.
- 160 A rated current.
- 690 V AC IEC / 700 V AC UL.
- aR operating class.
- Size 31 square body construction.
- Flush end metric threaded terminals.
- Integrated striker indication.
Reliable Protection for Industrial Power Electronics
Semiconductor fuses are specifically engineered to interrupt fault currents before they can damage costly electronic components. Their ultra-fast response limits energy let-through, helping protect IGBTs, SCRs, diodes and power modules used in modern industrial equipment.
The Mersen M300299 combines rapid fault clearance, robust square body construction and dependable performance, making it an excellent choice for industrial automation, motor control and power conversion systems where equipment protection is critical.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor control systems.
- Power converters and inverters.
- UPS and backup power equipment.
- Renewable energy power conversion systems.
- Industrial automation equipment.
- OEM electrical control panels.
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 | M300299 | |
| Catalogue No | PC31UD69V160TF | |
| Description | Square Body High-Speed Fuse Protistor® Size 31 aR 690VAC IEC 700VAC UL 160A With Striker Flush ends metric threads | |
| EAN/UPC Code | 3605340326437 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 160 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 31 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 7700 A²s | |
| Melting I2t | 1300 A²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Brass | |
| Connection/Terminal Type | Flush ends | |
| Product Width | 51 mm | |
| Product Length | 50.6 mm | |
| Product Height | 56.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.1478 kg | |
| Sell Pack Width | 85 mm | |
| Sell Pack Length | 168 mm | |
| Sell Pack Height | 65 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.3826 kg | |
| Power Dissipation at Rated Current Value | 35 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen M300299 used for?
The M300299 protects sensitive semiconductor devices including IGBTs, thyristors and diodes from damaging short circuit faults in industrial power electronic systems.
What is the current rating of this fuse?
The fuse has a 160 A rated current.
What voltage is the M300299 rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL) applications.
What does the aR fuse classification mean?
The aR operating class is intended for ultra-fast short circuit protection of semiconductor devices while allowing overload protection to be provided elsewhere in the electrical system.
Which industries commonly use this fuse?
The M300299 is widely used in industrial automation, power conversion, renewable energy, UPS systems, motor drives and OEM machinery.
Trusted for High Speed Semiconductor Protection
Mersen Protistor® semiconductor fuses are trusted worldwide by electrical engineers, panel builders and equipment manufacturers to deliver dependable protection for critical industrial power electronics.
