Siemens KM3T225 225A 3-Pole 600 V Circuit Breaker

Meet the Siemens KM3T225, a purpose-built 3-pole circuit breaker designed to safeguard your 3-phase power infrastructure with precision. With a 225 A current rating and a 600 V maximum voltage, this unit is ready to handle the demands of commercial and light industrial environments where reliability matters.

• Part Number: KM3T225
• Current rating: 225 A
• Poles: 3
• Voltage rating: 600 V
• Brand: Siemens

Why this matters: the three-pole design provides coordinated protection across all three phases, helping prevent unbalanced loads and reducing the risk of fault propagation. The KM3T225 is purpose-built to interrupt fault currents quickly and reliably, preserving downstream equipment such as motors, transformers, and control circuits.

Ideal applications include protecting 3-phase feeders in electrical panels, distribution boards, and switchgear where a robust 225 A limit is appropriate. Whether you’re upgrading an existing Siemens setup or stocking a spare for maintenance programs, the KM3T225 offers a straightforward, compatible choice that aligns with Siemens components and assemblies.

Key benefits at a glance:

• Cause-focused protection for three-phase systems up to 225 A
• Clear, consistent performance at voltages up to 600 V
• Part Number KM3T225 ensures exact compatibility with Siemens panels and related gear
• Compact, reliable build designed for steady operation in demanding environments

Practical guidance for use and installation (based on the product data): verify that the application matches a 3-pole, 225 A, 600 V rating; ensure correct electrical enclosure compatibility and follow standard electrical practices for mounting and bus connection. This KM3T225 unit is positioned as a dependable choice when you need a Siemens-branded solution that delivers consistent protection for three-phase circuits.