Siemens | BG320 | Circuit Breaker | 20A | 3-Pole | 240V | 10kA | Bolt-On

Siemens BG320 is a precise 20A, 3-pole circuit breaker engineered for 240V systems with bolt-on mounting. Designed for reliability in maintenance, retrofit, and replacement projects, this unit delivers exact protection where compatibility matters most.

Why the BG320 stands out

When your installation requires a three-pole protection device at 240V with a robust 10kA interrupting capacity, the BG320 matches your system’s demands without compromise. Its bolt-on construction enables a secure, straightforward attachment to compatible Siemens panels, helping technicians minimize install time and reduce wiring missteps compared with non-bolt-on alternatives.

Key specifications

• Amperage: 20A
• Poles: 3-Pole
• Voltage: 240V
• Interrupting Capacity: 10kA
• Mounting: Bolt-On
• Part number: BG320

Ideal use cases

Siemens BG320 is an excellent choice for:

• Replacing a failing breaker in existing Siemens panels where the BG320 match is required.
• Retrofits that convert circuits to a 3-pole, 240V protection scheme with a precise 20A rating.
• Maintenance cycles in commercial or industrial environments where exact spec alignment minimizes downtime and ensures consistent protection coordination.

Compatibility and installation tips

Before ordering, verify fit and ratings to ensure seamless compatibility with your panel. The BG320 is the best reference when matching part numbers for replacement or retrofit projects. Note that bolt-on mounting requires a compatible panel design and correct alignment with the circuit’s voltage and amperage requirements.

Why choose Siemens for this protection task

Choosing the Siemens BG320 means relying on a genuine part that’s built to align with your existing protective scheme. Its precise specs, durable construction, and straightforward bolt-on installation help reduce service interruptions and maintain consistent electrical protection across your system.