High-speed aR fuse with 80A rating, 1250VAC IEC and 1300VAC UL voltage ratings, featuring striker indication and DIN 110 blade terminals for industrial semiconductor protection.
£104.27
The Mersen W300537 (PC70UD13C80D1A) is a Protistor® Size 70 high-speed square body semiconductor fuse engineered to protect modern power electronic equipment against destructive short-circuit currents. Designed for demanding industrial applications, it provides ultra-fast fault interruption and excellent current limitation to safeguard expensive semiconductor devices.
Designed specifically for protecting diodes, thyristors, GTOs and IGBT devices, the W300537 features pure silver fuse elements embedded in solidified sand to deliver low let-through energy (I²t) and high interrupting performance. Silver-plated contact surfaces and non-magnetic hardware ensure dependable long-term operation in critical industrial environments.
The W300537 is ideal for OEM equipment, maintenance and replacement applications where identical electrical ratings and mounting arrangements are required. Always verify the complete part number and electrical characteristics before installation.
The Mersen W300537 has been specifically engineered for modern power conversion equipment requiring rapid fault clearance. Its ultra-fast operating characteristic limits thermal and electrical stress before semiconductor devices reach damaging temperatures, helping maximise equipment reliability and minimise costly downtime.
Its robust ceramic square body construction, silver-plated terminals, non-magnetic hardware and high interrupting capability make it an excellent choice for demanding industrial installations.
| Current | 11 A |
|---|---|
| Item number | W300537 |
| Catalogue No | PC70UD13C80D1A |
| Description | Square Body High-Speed Fuse Protistor® Size 70 aR 1250VAC IEC 1300VAC UL 80A With Striker DIN 110 Blades |
| EAN/UPC Code | 3605340329957 |
| Rated voltage AC UL | 1300 V |
| Rated voltage AC IEC | 1250 V |
| Ampere Rating | 80 A |
| AC or DC | AC |
| Speed/Characteristic | aR |
| Fuse Size | 70 |
| Mounting | Bolted |
| Clearing I2t At Rated Voltage | 3780 A²s |
| Melting I2t | 470 A²s |
| 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 | 39.8 mm |
| Product Length | 133.4 mm |
| Product Height | 49.5 mm |
| Sell Pack Quantity | 3 EA |
| Sell Pack Weight | 1.0899 kg |
| Sell Pack Width | 130 mm |
| Sell Pack Length | 140 mm |
| Sell Pack Height | 50 mm |
| Product group | Semiconductor Protection Fuses |
| Body/Insulating Material | Ceramic |
| Product Weight | 0.3633 kg |
| Power Dissipation at Rated Current Value | 27 W |
| HS Code | 85351000 |
The W300537 is a Protistor® high-speed semiconductor fuse designed to protect IGBTs, thyristors, GTOs and diodes against high-energy short-circuit faults.
The fuse is rated at 80 A with a rated voltage of 1250 VAC (IEC) and 1300 VAC (UL), featuring an ultra-fast aR operating characteristic and a 126 kA AC breaking capacity.
The W300537 features DIN 110 blade terminals together with an integrated striker indicator for local indication or optional microswitch operation.
Typical applications include industrial drives, converters, rectifiers, inverters, UPS systems and other high-power semiconductor equipment.
Only a fuse with identical electrical ratings, body size, mounting arrangement and semiconductor protection characteristics should be used as a replacement.
Mersen Protistor® high-speed semiconductor fuses are trusted worldwide for protecting critical power electronic equipment with rapid fault interruption, low let-through energy and high interrupting capacity.
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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...