Siemens JK3B200 200A 3-Pole 600 V Circuit Breaker

Siemens JK3B200 200A 3-Pole 600 V Circuit Breaker is engineered for reliable three-phase protection in demanding industrial and commercial environments. With a 200-amp current rating, a 3-pole configuration, and a maximum system voltage of 600 V, this protective device is built to interrupt fault currents swiftly, safeguarding wiring, motors, and downstream equipment while minimizing downtime.

Key specifications

• Part Number: JK3B200
• Current rating: 200 A
• Poles: 3
• Voltage rating: 600 V

Why it matters

In three-phase electrical systems, balanced protection across all lines is essential. The JK3B200 provides coordinated protection for multi-phase loads, ensuring a safe shutoff when overloads or faults occur. Its design emphasizes consistent trip performance and durable construction, reducing nuisance trips and extending the life of protected equipment.

Ideal applications

• Protection for industrial motors, conveyors, and other three-phase equipment in 600 V systems
• Main or feeder protection in commercial electrical panels that serve large multi-phase loads
• Spare-part inventory for technicians maintaining Siemens panel systems

What to expect in the field

With the JK3B200, you gain a dependable, space-conscious protective device that aligns with Siemens electrical distribution ecosystems. It’s a practical choice for upgrades, panel refurbishment projects, or ensuring you have the right replacement part on hand for critical infrastructure that relies on steady, controlled power distribution.