ABB JL3-B125 Circuit Breaker, 125A, 3-Pole, 600V

The ABB JL3-B125 Circuit Breaker delivers reliable protection for demanding industrial power systems. Designed specifically for industrial electrical service, maintenance, and replacement projects, this 125 A, 3-pole device helps keep three-phase equipment safe and available when it matters most. Use the part number JL3-B125 to confirm compatibility with your application and system configuration.

• Amperage: 125 A continuous rating for solid load protection
• Poles: 3-pole design for three-phase applications
• Voltage rating: Up to 600 V for standard industrial power distribution
• Part number for compatibility: JL3-B125 ensures a precise fit when matched to the right panel or switchgear
• Application focus: Ideal for industrial service, maintenance, and replacement projects where reliable overcurrent protection is required

Why choose this model: ABB builds on decades of electrical protection expertise to deliver a circuit breaker that integrates with compatible industrial panels and equipment, offering dependable trip performance and clear identification—crucial for maintenance schedules and safety compliance in busy facilities.

Ideal for: maintenance teams, plant engineers, and electricians working with three-phase systems in manufacturing, processing, and distribution environments where 600 V class protection is needed.

Compatibility and support: verify fit by part number and application requirements. If you’re unsure about compatibility, send us your panel or equipment details and we’ll help confirm the right match for your installation.

Practical tips: ensure power is fully de-energized before any replacement or installation, and follow all relevant safety procedures. Confirm that your circuit’s continuous current and fault-current characteristics align with the JL3-B125’s specifications and that your enclosure and wiring are rated for 600 V.