UL Class Fuse, aR Class, L50Q Series, Very Fast-Acting, 400A, 500V AC, Non-Indicating MPN:L50QS400.V
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In Stock
Free Shipping
In Stock
SKU
510-G403659567
UL Class Fuse, aR Class, L50Q Series, Very Fast-Acting, 400A, 500V AC, Non-Indicating
Protect your high-voltage electrical systems with the UL Class Fuse, aR Class, L50Q Series from Littelfuse. This very fast-acting fuse is designed to quickly respond to overcurrent conditions, preventing damage to your equipment. With a 400A rating and 500V AC/DC compatibility, it's ideal for use in industrial and commercial applications, including power supplies, motor control circuits, and high-voltage DC systems. Its non-indicating design and high interrupt rating make it a reliable choice for critical systems. With its compact size and bolt-on design, it's easy to integrate into your existing infrastructure.
Top product features:
- Very Fast-Acting
- Non-Indicating
- Interrupt Rating 200k A at 500V AC
Top product applications:
- Overcurrent protection for high-power electrical systems
- Protection of high-voltage DC power supplies
- Protection of high-power AC motor circuits
Semiconductor Fuse, 400 A, 500 V AC, 500 V DC, L50QS Series, Non-Indicating, Very-Fast-Acting, Body Style Bolt-On, Interrupt Rating 200k A at 500V AC, Fuse Size 4.343 in L x 1 1/2 in dia, Length 4 11/32 in, Width 1 1/2 in, Depth 1 1/2 in, Diameter 1 1/2 in, Equivalent Series A50P, A50Q, FWH, L50S, Compatible Fuse Block Series LSCR, Body Material Melamine, Standards REACH, RoHS Compliant
Additional Information
- Country of Origin: MX
- Drop Ship Item: Yes
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 45 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 8.80
- Package Width: 5.50
- Package Height: 1.30
- Package Weight: 2.93
Product info last updated on February 8, 2026 4:07pm UTC
Category: Fuses and Accessories