Square D JRA36225 - 225 A, 3-Pole Plug-In Circuit Breaker | AmpState

The Square D JRA36225 is a 225 A, 3-pole plug-in molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to handle the demands of commercial and light industrial environments, it delivers confident, consistent performance when it matters most.

Designed for quick service and minimal downtime, the fast plug-in connection simplifies installation and replacement. This means fewer hours spent on panel maintenance and faster restoration of service when a breaker needs upgrading or swapping out.

Key advantages you’ll notice

• Fast plug-in connection: streamlined installation and painless replacements reduce on-site labor and downtime.
• Thermal-magnetic trip unit: provides stable, repeatable protection by accurately responding to both overloads and short circuits, helping to safeguard equipment and wiring.
• High-capacity protection: 225 A rating ensures robust protection for heavy feeders and high-load circuits common in panelboards and load centers.
• Three-pole design: ideal for three-phase systems and multi-wire branch circuits, with reliable coordination in commercial and light industrial layouts.
• OEM-compatible: specifically designed to be compatible with matching Square D OEM load centers and panelboards for seamless integration.
• Versatile application: suitable for residential, commercial, and light industrial installations where dependable overcurrent protection is required.

Specifications at a glance

• Manufacturer: Square D
• Part Number: JRA36225
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 225 A
• Poles: 3
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

Use the JRA36225 when upgrading or expanding panelboards and load centers in warehouses, retail spaces, office buildings, or light manufacturing facilities. It’s particularly effective for feeders and critical distribution circuits that require reliable protection with straightforward maintenance. If you’re replacing an older plug-in breaker or integrating a new three-phase service, this unit offers a direct, compatible solution with Square D ecosystems.

Practical tips for installation and care

• Verify that the panelboard’s rating and bus compatibility match the JRA36225 to ensure optimal performance and safe operation.
• During replacement, power down the system and follow lockout/tagout procedures to protect personnel and equipment.
• Inspect the surrounding enclosure and bus connections for signs of wear or corrosion before installation to preserve long-term reliability.
• Document the change with the part number and rating to simplify future maintenance and inspections.