Siemens | JD22B300H | Circuit Breaker | 2-Pole | 240V

Siemens JD22B300H is a 2-pole, 240V circuit breaker engineered for precise compatibility within Siemens panels. Designed for maintenance, retrofit, and replacement projects, this unit helps ensure your electrical system remains protected with a part that matches exact specifications.

Key specifications

• Poles: 2-Pole
• Voltage: 240V

Compatibility note: Confirm fit and ratings before ordering. The JD22B300H part number is the most reliable reference for ensuring compatibility with your panel or enclosure.

Why this Siemens breaker stands out

• Exact part-number alignment: Using the JD22B300H guarantees the closest match to OEM specifications, reducing the risk of mismatches that can complicate installation or void warranties.
• Two-pole design for true simultaneous disconnect: Ensures both conductors in a 240V circuit trip together, enhancing safety and code compliance in shared neutral or multi-wire branch circuits.
• Maintenance, retrofit, and replacement ready: A practical choice when upgrading aging panels or replacing worn breakers without sacrificing reliability.

Ideal use cases

• Upgrading or repairing Siemens panels that require JD22B300H for 240V circuits
• Retrofits where maintaining exact electrical specifications is essential for panel labeling and code compliance
• Replacement of worn or failed breakers in residential, commercial, or light-industrial installations that use Siemens components

Practical tips for installation and compatibility

• Always verify panel model and labeling to ensure JD22B300H is the correct match before replacement.
• Keep the part number handy during service calls to avoid cross-referencing errors with non-Siemens breakers.
• Follow local electrical codes and, if unsure, consult a licensed electrician to confirm proper installation and ratings.