Mersen A070UD32LI400 / J300204 High-Speed Fuse, 400A, 690/700V AC
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The Mersen A070UD32LI400 Protistor® is a Size 32 aR square-body high-speed fuse with LI long slotted blades. Rated current is 400 A, with a rated voltage of 690 V AC under IEC and 700 V AC under UL. The official Item number is J300204.
| Catalog number | A070UD32LI400 |
| Item number | J300204 |
| Rated current In | 400 A |
| Rated voltage AC (IEC) | 690 V |
| Rated voltage AC (UL) | 700 V |
| Fuse class | aR |
| Product size | 32 |
| Terminal type | LI long slotted blades |
| Pre-arcing I²t | 15 kA²s |
| Clearing I²t at Rated Voltage | 90 kA²s |
| Rated breaking capacity AC | 200 kA |
| Power dissipation at In | 75 W |
Typical applications include semiconductor protection in inverters, motor drives, UPS systems, and similar equipment rated 690 V or less.
Apexon Supply provides B2B procurement support, technical alignment, and replacement sourcing for this Mersen high-speed fuse and related circuit protection components.
For RFQ support, submit either Catalog number A070UD32LI400 or Item number J300204, along with the required quantity and application requirements. Most qualified RFQs receive a response or quote within 12 hours.
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