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MERSEN FUSE 6,9 URD 32 D08 A 0800 6,9URD32D08A0800
High-speed Protistor® fuse providing rapid and reliable protection for semiconductor devices up to 690VAC IEC and 700VAC UL with 800A rating and integrated striker indication.
£125.25
Why Choose the Mersen L300183 Protistor® High-Speed Fuse?
The Mersen L300183, catalogue number PC32UD69V800A, is a high-performance Protistor® square body semiconductor protection fuse designed to safeguard sensitive power electronic devices against short circuits and fault currents. Engineered for demanding industrial applications, this ultra-fast aR characteristic fuse delivers exceptional protection for IGBTs, thyristors, diodes and other semiconductor devices operating in power conversion systems.
As part of the renowned Mersen Protistor® Size 32 series, the L300183 combines high interrupting capacity with low let-through energy, helping to minimise equipment damage and reduce costly downtime. Its integrated striker indicator enables remote indication and optional microswitch operation for enhanced maintenance and safety monitoring.
With an 800 A current rating, 690 V AC IEC and 700 V AC UL voltage ratings, this fuse is ideally suited for heavy-duty industrial drives, UPS systems, converters, renewable energy equipment and other semiconductor-based power electronics requiring reliable overcurrent protection.
Key Advantages
- Ultra-fast aR semiconductor protection fuse.
- 800 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL voltage capability.
- Protects IGBTs, thyristors, diodes and power semiconductors.
- Integrated striker indicator for remote fault indication.
- Low I²t values help minimise semiconductor damage during faults.
Key Features
- Mersen Protistor® Size 32 series.
- Catalogue number: PC32UD69V800A.
- 800 A rated current.
- 690 V AC IEC / 700 V AC UL rated voltage.
- aR ultra-fast operating characteristic.
- DIN 80 silver-plated blade terminals.
- Integrated striker indication system.
- Square body bolted fuse construction.
Reliable Protection for Power Electronics
Semiconductor fuses are specifically engineered to interrupt extremely high fault currents before sensitive electronic components suffer catastrophic damage. The Mersen Protistor® range provides exceptionally low energy let-through characteristics, extending the operational life of converters, inverters and industrial drive systems.
The L300183 is designed for modern industrial power electronics where fast fault clearance, dependable operation and high interrupting capacity are essential. Its robust square body construction and silver-plated terminals ensure long service life even in demanding industrial environments.
Typical Applications
- Variable speed motor drives.
- Industrial power converters.
- IGBT and thyristor protection.
- UPS and backup power systems.
- Renewable energy inverters.
- Industrial power electronics and automation equipment.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | D / D0 (Neozed/Diazed), Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | L300183 | |
| Catalogue No | PC32UD69V800A | |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 800A With Striker DIN 80 Blades | |
| EAN/UPC Code | 3605340324440 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 800 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 32 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 660 kA²s | |
| Melting I2t | 115 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | DIN 80 Blades | |
| Product Width | 59 mm | |
| Product Length | 110 mm | |
| Product Height | 65 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.5879 kg | |
| Sell Pack Width | 140 mm | |
| Sell Pack Length | 195 mm | |
| Sell Pack Height | 75 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.5293 kg | |
| Power Dissipation at Rated Current Value | 120 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen L300183 used for?
The L300183 is a high-speed semiconductor protection fuse designed to protect IGBTs, thyristors, diodes and other sensitive power electronic devices from short-circuit faults.
What is the current rating of this fuse?
The Mersen L300183 has a rated current of 800 A.
What voltage is the fuse rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
What does the integrated striker do?
The built-in striker provides mechanical indication when the fuse operates and can be used with a microswitch for remote monitoring.
Where is the Mersen L300183 typically installed?
It is commonly installed in industrial motor drives, converters, UPS systems, renewable energy equipment and other semiconductor-based power electronics.
Trusted Protection for Critical Power Electronics
Mersen Protistor® semiconductor fuses are trusted worldwide by machine builders, electrical engineers and power electronics manufacturers to deliver rapid fault protection, dependable performance and long-term equipment reliability.
