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MERSEN FUSE 6,9 URD 32 D11 A 0450 6,9URD32D11A0450
High-speed fuse designed for semiconductor protection with integrated striker indication and DIN 110 blades. Rated at 450A, 690VAC IEC and 700VAC UL.
£93.17
Why Choose the Mersen Q300187 Protistor® High-Speed Fuse?
The Mersen Q300187 is a genuine Protistor® Size 32 square body high-speed semiconductor fuse designed to provide outstanding protection for sensitive power electronic equipment operating in demanding industrial applications. Identified by the catalogue number PC32UD69V450D1A, this ultra-fast aR characteristic fuse-link is engineered specifically to protect semiconductors including IGBTs, thyristors and diodes against damaging short-circuit currents.
As part of the trusted Mersen Protistor® Size 32 range, the Q300187 combines rapid fault clearing, low let-through energy and a high breaking capacity to maximise equipment reliability whilst minimising costly downtime. Its ceramic square body, silver-plated DIN 110 blade terminals and integrated striker indicator make it ideal for industrial power conversion systems.
With a 450 A current rating, 690 V AC IEC and 700 V AC UL voltage ratings, the Mersen Q300187 is ideally suited for protecting variable speed drives, UPS systems, inverters, converters and industrial motor control equipment.
Key Advantages
- Genuine Mersen Protistor® semiconductor protection fuse.
- 450 A current rating for demanding industrial applications.
- 690 V AC IEC / 700 V AC UL rated operation.
- Ultra-fast aR operating characteristic.
- Integrated striker indicator for rapid fuse status identification.
- High breaking capacity helps protect valuable power electronic equipment.
Key Features
- Mersen Protistor® Size 32 series.
- Manufacturer part number: Q300187.
- Catalogue number: PC32UD69V450D1A.
- 450 A rated current.
- 690 V AC IEC / 700 V AC UL voltage rating.
- aR ultra-fast operating characteristic.
- DIN 110 blade terminals.
- Integrated striker indicator.
Advanced Semiconductor Protection
Protistor® semiconductor fuses are specifically engineered to protect modern power electronic devices against destructive short-circuit currents. Their low let-through energy helps minimise equipment damage, reduce maintenance costs and maximise operational uptime.
The Mersen Protistor® range is widely specified for variable frequency drives, UPS systems, converters, renewable energy equipment, industrial motor drives and automation systems 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 systems.
Technical Specifications
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| Fuse Indication | Striker | |
|---|---|---|
| Fuse Type | Semiconductor | |
| Fuse Class | aR | |
| Voltage | 690 V | |
| Item number | Q300187 | |
| Catalogue No | PC32UD69V450D1A | |
| Description | Square Body High-Speed Fuse Protistor® Size 32 aR 690VAC IEC 700VAC UL 450A With Striker DIN 110 Blades | |
| EAN/UPC Code | 3605340324525 | |
| Rated voltage AC UL | 700 V | |
| Rated voltage AC IEC | 690 V | |
| Ampere Rating | 450 A | |
| RoHS Compliant | Yes | |
| AC or DC | AC | |
| Speed/Characteristic | aR | |
| Fuse Size | 32 | |
| Mounting | Bolted | |
| Clearing I2t At Rated Voltage | 130 kA²s | |
| Melting I2t | 22 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 110 Blades | |
| Product Width | 59 mm | |
| Product Length | 134.6 mm | |
| Product Height | 65 mm | |
| Sell Pack Quantity | 3 EA | |
| Sell Pack Weight | 1.6899 kg | |
| Sell Pack Width | 145 mm | |
| Sell Pack Length | 195 mm | |
| Sell Pack Height | 78 mm | |
| Product group | Semiconductor Protection Fuses | |
| Body/Insulating Material | Ceramic | |
| Product Weight | 0.5633 kg | |
| Power Dissipation at Rated Current Value | 80 W | |
| HS Code | 85361090 | |
| Country of Manufacture | France |
Frequently Asked Questions
What is the Mersen Q300187 used for?
The Mersen Q300187 is a high-speed semiconductor fuse designed to protect IGBTs, thyristors, diodes and other power semiconductor devices from damaging short-circuit currents.
What is the current rating of the Q300187?
The Mersen Q300187 has a 450 A rated current.
What voltage is the Q300187 rated for?
The fuse is rated for 690 V AC (IEC) and 700 V AC (UL).
What does the aR characteristic mean?
The aR operating characteristic provides ultra-fast protection specifically for semiconductor devices against short-circuit faults.
Does this fuse include an indicator?
Yes. The Q300187 incorporates an integrated striker indicator to simplify maintenance and fuse monitoring.
Trusted Semiconductor Protection Worldwide
Mersen Protistor® semiconductor fuses are trusted by OEMs, panel builders and industrial engineers worldwide to protect modern power electronic equipment in demanding industrial environments.
