Square D LC36450 - 450 A, 600 V, 3-Pole Plug-In Circuit Breaker | AmpState

Introducing the Square D LC36450 — a high-capacity, plug-in molded case circuit breaker engineered to guard large branch circuits against overloads and short circuits. Rated at 450 A and 600 V, this 3-pole unit fits directly into compatible load centers and panelboards for fast, dependable protection.

Key advantages this breaker delivers:

• Fast plug-in connection for rapid installation and straightforward replacement in existing panel infrastructure
• Thermal-magnetic trip unit combines thermal overload protection with instantaneous magnetic tripping for severe faults
• Designed to be paired with matching OEM load centers and panelboards, ensuring proper fit and reliable electrical performance
• Versatile for residential, commercial, and light industrial applications where high-current branch circuits demand robust protection

Specifications at a glance

• Manufacturer: Square D
• Part Number: LC36450
• Type: Thermal-magnetic molded case circuit breaker (MCCB)
• Amperage Rating: 450 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Why choose the LC36450 for your electrical panel

In environments with large feed wires and heavy loads, you need reliable protection that responds precisely when it matters. This plug-in MCCB delivers a repeatable, dependable trip profile: the thermal element guards against nuisance trips during normal temperature variation, while the magnetic element delivers immediate clearing of dangerous faults. The quick plug-in installation minimizes downtime during panel upgrades or routine maintenance. By choosing a breaker designed to work with your OEM load centers and panelboards, you reduce compatibility risk and installation guesswork.

Ideal use scenarios

• New installations in commercial spaces such as offices, retail environments, and data rooms with sizable branch circuits
• Panelboard upgrades or refurbishments in light industrial settings
• Residential subpanels or service distribution where high-current branch circuits require reliable protection

Whether you’re upgrading an aging panel or stocking spare breakers for a busy facility, the Square D LC36450 provides the robust protection and straightforward service you need in a single, plug-in solution.