Airpax MJ-1650 LR26229 209-4-21937-2 Circuit Breaker

Airpax MJ-1650 LR26229 209-4-21937-2 Circuit Breaker is a four-pole magnetic circuit protector from Airpax's 209-series, designed for branch-circuit protection and built around an E-frame design for robust mounting and reliable interruption of all four conductors when overcurrent occurs. This unit includes an auxiliary contact for trip signaling and control interlocks, enabling status feedback to monitoring equipment or safety interlocks. The 209-series family is described as magnetic circuit protectors optimized for branch-circuit applications, with four-pole configurations available and various current ratings, including the 20 A rating indicated by this model number. The LR26229 and 209-4-21937-2 identifiers specify the exact family and pole-count, ensuring compatibility with matching accessories and panel-mount arrangements designed for four-pole protection. As part of Airpax’s legacy magnet protection devices, this breaker delivers fast response to overloads and offers the reliability associated with Airpax magnetic protection, making it suitable for installations where four conductors must be simultaneously disconnected and signaling is required for safety or automation systems.