Siemens | A03HP0R0 | Circuit Breaker | 3-Pole | 480V

Siemens A03HP0R0 is a purpose-built 3-pole circuit breaker designed for robust protection in industrial electrical setups. Built for maintenance, retrofit, and replacement projects, this unit delivers reliable three‑phase safety without requiring a full panel redesign.

The A03HP0R0 designation is your best reference for compatibility. Before ordering, verify that this exact part fits your panel and matches the required ratings for your system to ensure seamless operation and continued protection.

Why this Siemens circuit breaker stands out

• Three-pole protection ensures complete coverage for three‑phase systems, stopping faults from cascading across phases.
• 480V voltage rating matches common industrial feeders and equipment, making it suitable for demanding manufacturing, processing, and HVAC applications.
• Part number reliability using A03HP0R0 as the reference helps you avoid mismatches and accelerates sourcing for maintenance or replacement.
• Retrofit-friendly design minimizes downtime by plugging into compatible panels without extensive rewiring.
• Quality you can trust backed by Siemens engineering, providing consistent trip performance and long-term reliability in harsh plant environments.

Ideal use cases

• Maintenance and replacement for legacy 3‑phase equipment running on 480V.
• Retrofits to upgrade protection in manufacturing lines, packaging systems, or processing equipment.
• New installations where a proven Siemens circuit breaker with a 3‑pole, 480V spec is required.

Practical considerations: confirm panel compatibility and ensure the device’s current and trip characteristics align with your system requirements. For best results, rely on a qualified electrician to verify fitment and install the unit according to your enclosure’s specifications and safety standards.

Key details

• Poles: 3‑Pole
• Voltage: 480V
• Part number: A03HP0R0