Mersen A4BT900 900A 600 V fusible de acción retardada Clase L

At 900A, A4BT900 is one of the rated options available in Mersen’s 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 Mains, Feeders, Motors. For design release, confirm coordination, dimensions and approval details in the official Mersen documentation.