Siemens | HGB1K020B | Circuit Breaker | 20A | 1-Pole | 347V

Introducing the Siemens HGB1K020B Circuit Breaker—a focused solution for 347V, 20A circuits in residential-like or commercial environments where reliability and exact fit matter. Identified by part number HGB1K020B, this 1‑pole breaker is designed for maintenance, retrofit, and replacement projects where precise specifications are essential.

• Amperage: 20A
• Poles: 1‑Pole
• Voltage rating: 347V
• Part number: HGB1K020B
• Recommended use: maintenance, retrofit, and replacement in Siemens-compatible panels

Why choose this Siemens breaker? It’s purpose-built for panels and systems that require a 1-pole, 20A protection device on a 347V circuit. The compatibility is anchored by the exact part number, reducing guesswork and ensuring the device drops into place with the correct mechanical fit and trip characteristics.

Who is this for? Facilities managers, electricians, and maintenance teams working on panel upgrades, circuit protection upgrades, or straightforward replacements within Siemens installations. If your project specifies a 347V, 1-pole breaker at 20A, this model delivers the reliable protection you need without compromisess in form or function.

Practical guidance for use

• Always confirm fit and ratings before ordering; the part number (HGB1K020B) is the most reliable reference for compatibility.
• Ensure the panel is designed for 347V circuits and supports Siemens HGB-series breakers for a seamless installation.
• Power down the circuit and discharge any stored energy before replacement to maintain safe handling.
• Keep a small inventory of common values (like 20A, 1-pole) for quicker service and reduced downtime.

In short, the Siemens HGB1K020B provides precise, dependable protection for 347V circuits with a 20A, single-pole configuration. It’s tailored for maintenance, retrofit, and replacement workflows where accuracy, compatibility, and minimal downtime truly matter—empowering safer, more reliable electrical systems.