Siemens SHJD6B200LSI Molded Case Circuit Breaker

Use the 200A rated current to evaluate the breaker against the circuit's load requirements and conductor ampacity. Select trip settings that maintain the required conductor and equipment protection.

The breaker has voltage ratings of 240VAC, 480VAC and 600VAC. Select the appropriate rating for the circuit's AC system voltage, and evaluate interrupting capacity separately.

Compare the available fault current at the 480V installation point with the breaker's 65kAIC interrupting rating. The available fault current must be within that rating for the breaker to safely interrupt a fault.

Select this three-pole breaker for a three-phase circuit requiring protection and interruption across three poles. Pole count guides selection for the circuit arrangement, separately from current and voltage ratings.

LSI means long-time, short-time and instantaneous protection. Long-time protection addresses sustained overcurrent, short-time protection introduces a delay for higher overcurrent, and instantaneous protection responds without an intentional delay. These functions support selecting protection for overloads and faults.

Adjustable tripping lets you tailor the protection response to the circuit rather than use a fixed response. Choose settings based on conductor and equipment protection requirements and coordination with other protective devices.

Unit-mount construction requires mechanically securing the breaker as an individual unit. Account for its 21.00 lb weight when planning handling and mechanical support during installation.