Square D PGL36120 - 1200 A, 600 V, 3-Pole Circuit Breaker | AmpState

Square D PGL36120 — 1200A, 600V, 3-Pole molded case circuit breaker. A rugged protection solution engineered for dependable branch-circuit overcurrent and short-circuit protection in panelboards and load centers, designed to keep demanding electrical distributions safe and reliable.

• High-capacity protection: 1200A amperage and a 600V rating, making it suitable for main or feeder services in large residential feeders, commercial setups, and light industrial applications.
• Three-pole, three-phase protection: Ensures synchronized tripping across all phases for balanced fault clearance and minimized equipment stress.
• Thermal-magnetic trip unit: Combines thermal overload protection with instantaneous magnetic trip for fast, repeatable responses to both sustained faults and short-circuits, reducing nuisance trips in variable environments.
• Compact molded-case design: Efficiently uses panel space while delivering robust mechanical integrity and reliable heat management in crowded panelboards and load centers.
• OEM-panel compatibility: Precisely engineered to work with matching Square D load centers and panelboards, ensuring proper fit, electrical continuity, and straightforward replacement.
• Versatile applicability: An ideal choice for large residential feeders, commercial distribution panels, and light industrial electrical rooms where high-current protection is essential.

Typical use scenarios:

• Upgrading or provisioning a large-capacity service panel to protect oversized feeders without compromising space or layout.
• Feeding three-phase equipment in commercial or light industrial settings that require coordinated, reliable protection across all phases.
• Retrofitting older panels where high-current protection and panelboard compatibility are critical for safe, compliant operation.

Why this 3-Pole MCCB stands out: its combination of a high current rating, precise thermal-magnetic trip performance, and compact form factor translates into fewer interruptions, predictable protection, and easier installation in demanding environments. Unlike smaller or single-pole devices, the PGL36120 provides true three-phase protection for balanced fault handling, helping protect motors, drives, and other high-load equipment.

Practical tips for optimal use: ensure the panelboard or load center is rated for 600V and 1200A, verify conductor sizing and lug compatibility for high-current connections, and follow the OEM installation guidelines to maintain proper clearance, ventilation, and trip reliability.

When reliability and capacity matter, the Square D PGL36120 (3-Pole, 1200A, 600V) delivers coordinated protection for your distribution system. Add this robust MCCB to your AmpState cart to safeguard your panelboard investments and keep critical circuits energized when it matters most.