Mersen A110UD73TTI1000 / L301057 Semiconductor Protection Fuse, 1000 A, 1000 VAC IEC
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Mersen A110UD73TTI1000 is a Protistor size 73 aR square body high-speed semiconductor protection fuse-link with 1/2 in-13 unified coarse threaded terminals. It is rated 1000 A with 1000 VAC IEC and 1100 VAC UL voltage ratings for protection of power conversion equipment and semiconductor devices.
| Product ID / MPN | A110UD73TTI1000 |
| Secondary ID | K301056 |
| Brand / Series / Category | Mersen Protistor size 73 aR semiconductor protection fuse |
| Rated Voltage | 1000 VAC IEC; 1100 VAC UL |
| Rated Current | 1000 A |
| Fuse Characteristic | aR ultra-fast acting |
| Pre-Arcing I²t | 370 kA²s |
| Clearing I²t at Rated Voltage | 2130 kA²s |
| Rated Breaking Capacity AC | 167 kA |
| Power Dissipation at In | 152 W |
| Mounting / Terminal / Connection | TTI 1/2 in-13 unified coarse threaded terminals |
| Standards / Certifications | IEC 60269-4; UL/CSA Recognized E76491; UL certified product range status |
Typical applications include protection of inverters, motor drives, UPS systems, and similar power conversion equipment where aR high-speed fuse protection is required for semiconductor devices such as diodes, thyristors, and IGBT devices.
Apexon Supply provides B2B sourcing and replacement support for Mersen A110UD73TTI1000 fuse-links, helping procurement teams review verified electrical ratings, terminal configuration, and technical alignment before sourcing.
Send the MPN, secondary ID K301056, required quantity, and application requirements to request a B2B quote for sourcing support.
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