The PC73UD90V11CPA high-speed fuse offers exceptional protection for power semiconductor devices in demanding industrial applications, with rapid interruption capability up to 1100A and maximum voltage ratings of 900VAC (IEC) and 1000VAC (UL). Equipped with striker and plain blade terminations for straightforward installation and clear status indication.
£322.62
The Mersen Q302717 (PC73UD90V11CPA) is a premium Protistor® Size 73 square body high-speed semiconductor fuse engineered to provide ultra-fast protection for today's high-power conversion equipment. Designed with an aR operating characteristic, it offers outstanding short-circuit protection for diodes, thyristors, IGBTs and other sensitive semiconductor devices used in demanding industrial applications.
Manufactured using precision die-cut silver fuse elements embedded in solidified sand, the Q302717 delivers exceptional current limitation, low let-through energy and high interrupting capacity. Silver-plated contact surfaces, non-magnetic hardware and an integrated striker indicator ensure dependable long-term performance and simplified maintenance.
Rated at 1100 A with a 900 V AC IEC and 1000 V AC UL voltage rating, the Q302717 is ideally suited to protecting industrial drives, power converters, UPS systems, renewable energy equipment and other high-power semiconductor installations.
Protistor® semiconductor fuses are specifically developed to interrupt fault currents before expensive semiconductor devices can be damaged. Their extremely fast operation and low let-through energy provide superior protection compared with conventional industrial fuses, improving equipment reliability and reducing maintenance costs.
The Size 73 range is widely used in industrial automation, renewable energy systems, UPS installations, motor drives and power conversion equipment where dependable semiconductor protection is essential.
| Item number | Q302717 |
|---|---|
| Catalogue No | PC73UD90V11CPA |
| Description | Square Body High-Speed Fuse Protistor® Size 73 aR 900VAC IEC 1000VAC UL 1100A With Striker Plain Blades |
| EAN/UPC Code | 3605340443691 |
| Rated voltage AC UL | 1000 V |
| Rated voltage AC IEC | 900 V |
| Ampere Rating | 1100 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 73 |
| Mounting | Clip |
| Clearing I2t At Rated Voltage | 2280 kA²s |
| Melting I2t | 445 kA²s |
| AC Max I.R./Breaking Capacity | I1: 150 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | Plain Blades |
| Product Width | 73 mm |
| Product Length | 149.4 mm |
| Product Height | 78.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 3.48 kg |
| Sell Pack Width | 160 mm |
| Sell Pack Length | 245 mm |
| Sell Pack Height | 100 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 1.16 kg |
| Power Dissipation at Rated Current Value | 208 W |
| HS Code | 85361090 |
The Mersen Q302717 provides ultra-fast short-circuit protection for high-power semiconductor devices including IGBTs, thyristors and power diodes.
The Q302717 has a rated current of 1100 A.
It is rated at 900 V AC (IEC) and 1000 V AC (UL).
The aR characteristic identifies an ultra-fast semiconductor protection fuse designed to clear short-circuit faults while protecting sensitive semiconductor devices.
Yes. The Q302717 includes an integrated striker indicator which can be used with an optional microswitch for remote indication.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, machine builders and industrial engineers to provide dependable protection for critical power electronic equipment operating in demanding environments.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...