Square D JJA36200 - 200A, 3-Pole, Circuit Breaker

The Square D JJA36200 is a rugged 200A, 3-pole circuit breaker designed to deliver reliable overcurrent protection where it matters most. Built for industrial, commercial, and OEM environments, this breaker fits seamlessly into panelboards, switchboards, and control panels, providing robust protection for three-phase systems.

Key capabilities that matter in the field

• 200A current rating supports substantial distribution loads and motor circuits without sacrificing protection accuracy.
• 3-pole configuration delivers unified protection across all phases of a three-phase system, simplifying wiring and coordination for motors and equipment.
• Versatile installation—designed for use in panelboards, switchboards, and control panels, enabling flexible layouts in new builds or upgrades.
• Dependable overcurrent protection and safe operation, helping minimize equipment downtime and enhance personnel safety in demanding environments.

Ideal applications

• Industrial facilities with three-phase motors and machinery requiring reliable phase protection
• Commercial distribution panels where space and wiring simplicity are priorities
• OEM equipment where a compact, three-pole breaker can be integrated into custom control solutions
• Motor control centers (MCCs) and distribution panels that demand consistent performance under heavy workloads

Why choose the Square D JJA36200

This breaker is purpose-built for applications where dependable protection and safe operation are non-negotiable. By offering a 200A rating in a 3-pole format, it provides synchronized protection for all phases, reducing the risk of unbalanced faults and unnecessary downtime. Its compatibility with standard panelboard, switchboard, and control panel configurations makes it a practical upgrade or retrofit option in existing electrical distributions.

Practical tips and considerations

• Assess motor and feeder load profiles to ensure the 200A rating aligns with your startup and sustained operating currents.
• Plan for coordinated protection across all three phases to prevent phase imbalances and improve system reliability.
• When integrating into OEM equipment, ensure the footprint and mounting provisions match your enclosure and rail standards for a clean, secure installation.
• Pair with compatible enclosures and accessories to maximize ease of maintenance and future upgrades in MCCs and distribution panels.