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MERSEN FUSE A 070 URD 33 LI 0900 A070URD33LI0900
High-speed Protistor® fuse with striker indication, rated 900A at 690VAC IEC and 700VAC UL, featuring a robust ceramic square body and slotted blade terminals for industrial power electronics protection.
£146.36
Why Choose the Mersen Q300233 Protistor® High-Speed Fuse?
The Mersen Q300233 is a genuine Protistor® Size 33 square body high-speed semiconductor fuse engineered to provide maximum protection for sensitive power electronic equipment operating in demanding industrial environments. Identified by the catalogue number A070UD33LI900, this ultra-fast aR characteristic fuse-link is specifically designed to protect IGBTs, thyristors, diodes and other semiconductor devices against damaging short-circuit currents.
As part of the trusted Mersen Protistor® Size 33 series, the Q300233 combines rapid fault interruption, low let-through energy and a high breaking capacity to maximise equipment reliability whilst minimising costly downtime. Its robust ceramic square body, silver-plated contact surfaces and long slotted blade terminals with an integrated striker indicator make it ideal for modern power conversion equipment.
With a 900 A current rating, 690 V AC IEC and 700 V AC UL voltage ratings, the Mersen Q300233 is ideally suited to protecting industrial drives, UPS systems, converters, inverters, rectifiers and renewable energy power conversion equipment.
Key Advantages
- Genuine Mersen Protistor® semiconductor protection fuse.
- 900 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL rated operation.
- Ultra-fast aR operating characteristic for semiconductor protection.
- Long slotted blade terminals with integrated striker indicator.
- High interrupting capacity of 200 kA for superior fault protection.
Key Features
- Mersen Protistor® Size 33 series.
- Manufacturer part number: Q300233.
- Catalogue number: A070UD33LI900.
- 900 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- Ceramic square body construction.
- Long slotted blade terminals with striker indicator.
Advanced Semiconductor Protection
Protistor® semiconductor fuses are specifically developed to protect modern power electronic devices from destructive short-circuit currents before permanent damage can occur. Their exceptionally low let-through energy helps extend equipment life, reduce maintenance costs and improve overall system reliability.
The Mersen Protistor® range is trusted worldwide for protecting variable frequency drives, UPS systems, industrial motor drives, renewable energy converters, soft starters and power conversion equipment where dependable semiconductor protection is essential.
Typical Applications
- Variable frequency drives (VFDs).
- Industrial motor drives.
- Power converters and inverters.
- UPS systems.
- Renewable energy power conversion equipment.
- Industrial automation and process control systems.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | Q300233 | |
| Catalogue No | A070UD33LI900 | |
| Description | Square Body High-Speed Fuse Protistor® Size 33 aR 690VAC IEC 700VAC UL 900A With Striker Slotted Blades long | |
| EAN/UPC Code | 3605340325393 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 900 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 33 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 770 kA²s | |
| Melting I2t | 130 kA²s | |
| AC Max I.R./Breaking Capacity | I1: 200 kA | |
| Design Details | Standard Terminal | |
| Indication System | Yes | |
| Indication System Type | Striker | |
| Connection/Terminal Material | Silver-Plated Copper | |
| Connection/Terminal Type | Slotted Blades | |
| Product Width | 73 mm | |
| Product Length | 153 mm | |
| Product Height | 78.5 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 2.6298 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 250 mm | |
| Sell Pack Height | 90 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.8766 kg | |
| Power Dissipation at Rated Current Value | 135 W | |
| HS Code | 85361090 |
Frequently Asked Questions
What is the Mersen Q300233 used for?
The Mersen Q300233 is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other semiconductor devices from damaging short-circuit currents.
What is the current rating of the Q300233?
The Mersen Q300233 has a 900 A rated current.
What voltage is the Q300233 rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
What type of terminals does this fuse use?
The Q300233 features long slotted blade terminals with an integrated striker indicator for reliable installation and status indication.
What industries commonly use this fuse?
The Q300233 is widely used in industrial motor drives, converters, UPS systems, renewable energy installations and other semiconductor-based power conversion equipment.
Trusted Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted globally by OEMs, panel builders and industrial engineers to provide dependable protection for today's advanced power electronic equipment.
