Mersen A4BT500 500A 600V Class L Time-Delay Fuse

Mersen A4BT500 is a 500A Class L fuse from the A4BT Series. For coordination, the key ratings are 600V AC / 500V DC and 200kA AC / 100kA DC interrupting performance. The protection profile emphasizes 10-second time delay at 500% rating for large motors and high-inrush loads. Mechanically, it follows the Class L form factor and blade terminal style for clip-mounted fuse installations. Typical selection contexts include Motor Controllers, Transformers, Mains. For design release, confirm coordination, dimensions and approval details in the official Mersen documentation.