High-speed fuse with 630A rating, ceramic body, striker indication, and DIN 110 blades for bolted mounting. Suitable for semiconductor protection in industrial applications.
£276.57
The Mersen G300570 (PC73UD13C630D1A) is a premium square body high-speed semiconductor fuse engineered to deliver rapid fault protection for sensitive power electronic equipment. As part of the proven Mersen Protistor® Size 73 aR series, it is specifically designed to protect IGBTs, thyristors, diodes and other semiconductor devices used in demanding industrial power conversion applications.
Manufactured for reliable performance in high-power electrical systems, this ultra-fast acting fuse quickly interrupts short-circuit currents before they can damage valuable semiconductor components. Its robust square body construction, silver-plated DIN 110 blade terminals and solidified sand arc-quenching technology provide excellent current limitation and dependable long-term operation.
With a 630 A current rating, 1250 V AC IEC / 1300 V AC UL voltage rating and an integrated striker indicator, the G300570 is ideally suited for industrial drives, UPS systems, renewable energy equipment, converters and high-power inverter installations.
High-speed semiconductor fuses are designed to minimise fault energy by interrupting high short-circuit currents extremely quickly. This helps prevent costly damage to semiconductor devices while improving the reliability and availability of industrial electrical systems.
The Mersen Protistor® range is trusted by equipment manufacturers and maintenance engineers worldwide for protecting drives, converters, UPS systems and renewable energy installations where dependable semiconductor protection is essential.
| Current | 11 A |
|---|---|
| Item number | G300570 |
| Catalogue No | PC73UD13C630D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 73 aR 1250VAC IEC 1300VAC UL 630A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340330441 |
| Rated voltage AC UL | 1300 V |
| Rated voltage AC IEC | 1250 V |
| Ampere Rating | 630 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 73 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 680 kA²s |
| Melting I2t | 84 kA²s |
| AC Max I.R./Breaking Capacity | I1: 126 kA |
| Indication System | Yes |
| Indication System Type | Striker |
| Connection/Terminal Material | Silver-Plated Copper |
| Connection/Terminal Type | DIN 110 Blades |
| Product Width | 73 mm |
| Product Length | 133.4 mm |
| Product Height | 78.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 3.36 kg |
| Sell Pack Width | 150 mm |
| Sell Pack Length | 250 mm |
| Sell Pack Height | 90 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 1.12 kg |
| Power Dissipation at Rated Current Value | 132 W |
| HS Code | 85351000 |
The G300570 is a high-speed semiconductor fuse designed to protect sensitive power electronic devices such as IGBTs, thyristors and rectifiers against damaging short-circuit currents.
This fuse has a 630 A rated current.
The fuse is rated for 1250 V AC (IEC) and 1300 V AC (UL).
The integrated striker provides a mechanical indication when the fuse has operated and can be used with compatible microswitch accessories for remote signalling.
It is commonly installed in industrial drives, converters, UPS systems, renewable energy equipment and other high-power semiconductor protection applications.
Mersen Protistor® semiconductor fuses are trusted worldwide for delivering fast fault interruption, dependable protection and long service life in demanding industrial power electronic applications.
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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...