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Mersen PC73UD90V10CD1A / L300574 Protistor Size 73 aR High-Speed Fuse, 1000A, 900VAC (IEC), DIN 110 Blade Terminals
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$200.00 USD
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Mersen Protistor size 73 aR square-body high-speed fuse-link for semiconductor protection in inverters, motor drives, UPS systems, and related power conversion equipment. This DIN 110 blade variant delivers ultra-fast, current-limiting performance with very low I²t to protect diodes, thyristors, and IGBT devices. Contact surfaces are silver plated and hardware is non-magnetic; an optional low-voltage trip-indicator can operate a field-mountable microswitch.
- aR Class per IEC 60269-4 and VDE 636-23
- Rated current 1000 A
- Rated voltage 900 VAC (IEC) / 1000 VAC (UL)
- Rated breaking capacity 150 kA AC
- Very low I²t: 370 kA²s pre-arcing; 1920 kA²s clearing at rated voltage
- Power dissipation at In: 174 W
- DIN 110 blade terminals; optional trip-indicator to drive microswitch
- Silver-plated contacts; non-magnetic hardware
- UL/CSA Recognized (E76491); CCC GB 13539.4; CE marking applicable ≤1000 VAC
- Package: 1; weight: 1.12 kg
| Catalog Number | PC73UD90V10CD1A |
| Item Number | L300574 |
| Brand | Mersen |
| Product Series / Family | Protistor size 73 |
| Product Category | Square body high-speed fuse-link (Semiconductor Protection Fuse) |
| Speed / Characteristic | aR (ultra-fast acting) |
| Product Size | 73 |
| Rated Current (In) | 1000 A |
| Rated Voltage AC (IEC) | 900 V |
| Rated Voltage AC (UL) | 1000 V |
| Pre-arcing I²t | 370 kA²s |
| Clearing I²t at Rated Voltage | 1920 kA²s |
| Rated Breaking Capacity AC | 150 kA |
| Power Dissipation at In | 174 W |
| Voltage Range AC (Family) | 600 ... 1250 VAC |
| Ampere Range (Family) | 315 ... 1800 A |
| Interrupting Rating AC (Family) | 100 ... 185 kA |
| Body Style | Square body |
| Terminal Type | DIN 110 blades |
| Contact Surface Finish | Silver plated |
| Hardware | Non-magnetic |
| Body Width | 73 ± 1.4 mm |
| Reference Dimension | 78.5 mm (see drawing) |
| Drawing Reference | size 73 aR type DIN 110 (105714), dimensions in mm |
| Weight | 1.12 kg |
| Package Quantity | 1 |
| Trip-Indicator / Microswitch Compatibility | Low-voltage trip-indicator optional; can operate a field-mountable microswitch |
| Operating Temperature Range | [Not Found in Source] |
| Storage Temperature | [Not Found in Source] |
| Ingress Protection (IP) | [Not Found in Source] |
| IEC Compliance | IEC 60269-4 |
| VDE Standard | VDE 636-23 (aR class) |
| UL / CSA Recognition | UL/CSA Recognized E76491; UL certified status: ✓ |
| CCC (China) | GB 13539.4 (Asian market only) |
| CE Marking | Only for voltages ≤ 1000 VAC |
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