Square D LAL26400MB – 400A 2 Pole Molded Case Circuit Breaker Get Yours

Featuring a specialized short handle, the Square D LAL26400MB is a 2-pole, 400-amp molded case circuit breaker. The “MB” suffix designates a modified handle design that ensures proper clearance so panel doors can close securely in space-constrained applications. This unit-mount breaker installs into compatible panelboards, switchboards, and enclosures. It serves as a replacement for legacy L-Frame installations. The breaker provides thermal-magnetic protection with a 42 kAIC rating at 240V.