229-4-1REC4-37091-6 is a four-pole hydraulic magnetic supplementary protector from the AIRPAX 209/219/229 series, UL 1077 recognized for branch circuit protection applications. This circuit protector features common-trip construction with an internal trip bar that opens all poles in the event of an overload in any pole, and includes an auxiliary switch with .110 quick connect terminals. The unit offers multiple terminal style options and is designed with ganged handles for simultaneous actuation across all poles. With a maximum width of 4.144 inches (105.26 mm) for the four-pole configuration, it is suitable for applications such as EDP equipment, air conditioners, panel boards, and lighting controls where accurate and reliable circuit protection is required.