Littelfuse LA70QS300-4 - Powr-Speed Fuse 300A 700V (200kA AIC)

Littelfuse LA70QS300-4 is a low-voltage Powr-Speed fuse designed for high-current circuit protection in industrial power systems. This bolt-in fuse features a 700V AC/DC voltage rating and 300A current rating, with a very fast-acting (VFA) response to short-circuit conditions. Its compact 2-inch diameter construction utilizes durable materials to withstand 200kA interrupting capacity at 700V, meeting stringent industry protection requirements. Compliant with global electrical standards, this fuse is engineered for demanding applications including motor control centers, switchgear, and power distribution equipment where rapid fault clearing is critical.

Key Features & Specifications

• Type: LA70QS bolt-in fuse, very fast-acting (VFA) protection
• Voltage Rating: 700V AC/DC
• Current Rating: 300A
• Dimensions: 2" diameter
• Standards: Industrial electrical protection standards
• Applications: Motor control centers, switchgear, power distribution
• AIC rating: 200kA@700V
• Connection: Bolt-in
• Barrels: 1
• Velocity: VFA (Very Fast Action)
• Weight: 1 lb