Square D QJP32100TM Molded Case Circuit Breaker

This 100A, 3-pole breaker is rated for 240VAC, 3-phase service at 50/60Hz. Check the circuit voltage, phase, frequency and required current rating when selecting it.

The continuous load rating is 80%, so size sustained loads within 80% of the 100A rated current. Apply that limit when selecting the breaker for continuous-duty circuits.

The UL interrupting rating is 100kA at 240VAC. For that voltage application, select it where the available fault current does not exceed 100kA.

The thermal-magnetic LI trip provides overload and instantaneous short-circuit protection. Both thermal and magnetic settings are fixed, so select it for applications that do not require adjustable trip settings.

The fixed magnetic settings are 1200A hold and 2400A trip. Use these values when evaluating instantaneous protection and coordination with other protective devices.

The conductor range is 4 AWG-300 kcmil. Select conductors within that range while also meeting the circuit's ampacity requirements.

The line side uses a terminal nut connection, and the load side uses a lug connection. Plan the terminations accordingly and tighten the terminals to 247.8 lb-in with a torque tool.

This breaker uses unit mounting. Use its 6.47 in height, 4.50 in width and 3.93 in depth when planning the mounting layout and space allocation.

Choose an installation environment within the breaker's 40 to 70 °C operating temperature range. Check the expected temperature at the breaker location during operation.

The breaker carries UL, CSA and NOM approvals, with NOM-003-SCFI-2000 as its standard. Use these approvals when checking the project's certification requirements.