Square D JLL36150 - 150 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D JLL36150, a rugged 3-pole molded case circuit breaker engineered to shield your electrical panel from overcurrent and short circuits. With a 150 amp rating and 600V capacity, it delivers dependable protection for residential expansions, commercial panels, and light industrial installations with confidence.

Precision protection in a compact package

• 150A, 600V, 3-pole design provides multi-phase circuit protection and reliable disconnection across all three conductors.
• Thermal-magnetic trip unit delivers stable, repeatable protection, responding to sustained overloads with a thermal element and fast short-circuit response with magnetic action.
• Compact molded case minimizes space usage in crowded panelboards and loadcenters, making it easier to fit additional circuits.
• OEM load center compatibility designed to pair with matching Square D OEM load centers and panelboards for seamless replacement or expansion.
• Versatile application suitable for residential, commercial, and light industrial environments, supporting diverse electrical layouts.

Why this matters

Choosing a 3-pole MCCB like the JLL36150 helps ensure all phases trip together, enhancing safety for multi-wire branch circuits. The thermal-magnetic trip curve provides predictable performance under varying loads, reducing nuisance trips and protecting equipment, motors, and lighting circuits alike. Its robust construction withstands the rigors of daily use in demanding settings.

Practical use cases

• Expanding a panel in a small office or retail space where 3-phase protection is necessary.
• Upgrading service panels in light industrial environments to support higher-demand circuits with reliable protection.
• Replacing aging circuit breakers in compatible Square D panelboards to maintain consistent trip characteristics.

Specifications at a glance

• Manufacturer: Square D
• Part Number: JLL36150
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150A
• Voltage Rating: 600V
• Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Equip your panel with the proven protection of Square D JLL36150 and enjoy dependable, coordinated performance across your electrical system.