Siemens JKL3400F Circuit Breaker, 400A, 3-Pole, 600V

Siemens JKL3400F Circuit Breaker delivers robust, reliable protection for demanding industrial electrical service, maintenance, and replacement projects. Built for 3‑phase, 600V systems, it handles up to 400A with precise trip behavior designed to safeguard motors, drives, feeders, and panel infrastructure in harsh industrial environments.

• Amperage: 400 A
• Poles: 3
• Voltage: 600 V
• Manufacturer: Siemens
• Part Number: JKL3400F
• Applications: Industrial service, maintenance, and replacement projects

What sets the JKL3400F apart

• Designed specifically for 3‑phase 600V electrical networks, ensuring balanced protection across all phases.
• Siemens engineering delivers dependable interrupting performance and predictable trip characteristics critical for uptime in manufacturing and process environments.
• Part-number based compatibility helps you avoid mismatches—verify fit by the exact JKL3400F designation and your application requirements.
• Compact, robust construction suited for integration into service panels, motor control centers (MCCs), and feeder circuits where space and reliability matter.

Ideal use scenarios

• Upgrading or replacing breakers in industrial panels and service equipment where 400 A, 3‑pole protection is required.
• Protection for three‑phase motors, pumps, conveyors, and other heavy loads in manufacturing, processing, and material handling facilities.
• Retrofit projects in existing electrical rooms that demand a durable, code‑compliant 600V solution.

Compatibility and support

To ensure a seamless installation, confirm fit by the part number—JKL3400F corresponds to a 400 A, 3‑pole, 600V circuit breaker. If you’re unsure about compatibility with your panel or application, send us a message and we’ll help verify the fit and suggest the best implementation plan.

Notes: This product is intended for industrial use and should be installed by qualified electrical professionals in accordance with local codes and Siemens installation guidelines. Have your panel model, bus rating, and wiring method ready when evaluating compatibility to minimize downtime and ensure proper protection for your equipment.

Ready to secure reliable protection for your critical operations? The Siemens JKL3400F circuit breaker is the precise, capable choice for 400 A, 3‑pole, 600V needs—order with confidence and check compatibility to keep your systems running smoothly.