Mersen A070UD73TTI1600 High Speed Fuse, 1600A, 690 VAC
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Mersen A070UD73TTI1600 is a Protistor size 73 aR square body high-speed semiconductor protection fuse with item number Q300877. It is rated 1600 A with a 690 VAC IEC voltage rating and 700 VAC UL voltage rating, using TTI 1/2 in - 13 unified coarse threaded terminals for industrial power conversion protection applications.
| Product ID / MPN | A070UD73TTI1600 |
| Secondary ID | Q300877 |
| Brand / Series / Category | Mersen Protistor size 73 aR high-speed fuse |
| Rated Current | 1600 A |
| Rated Voltage AC | 690 VAC IEC; 700 VAC UL |
| Fuse Characteristic | aR ultra-fast acting |
| Product Size | 73 |
| Terminal Type | TTI 1/2 in - 13 unified coarse threaded terminals |
| Pre-arcing I²t | 1430 kA²s |
| Clearing I²t at Rated Voltage | 5740 kA²s |
| Rated Breaking Capacity AC | 200 kA |
| Power Dissipation at In | 203 W |
| Standards / Certifications | IEC 60269-4; UL/CSA Recognized E76491; CCC GB 13539.4; CE marking for voltages less than or equal to 1000 VAC |
Typical applications include semiconductor protection in inverters, motor drives, UPS systems, power conversion equipment, and similar 690 V or lower equipment using diodes, thyristors, or IGBT devices.
Apexon Supply supports B2B sourcing and replacement review for Mersen A070UD73TTI1600 high-speed fuses, helping procurement teams compare ratings, terminal style, fuse class, and technical alignment before sourcing.
Send the MPN, item number, required quantity, and application requirements for RFQ support. Most qualified RFQs receive a response or quote within 12 hours.
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