Square D | MA368001021 | Circuit Breaker | 800A | 600V

Engineered by Square D for demanding electrical environments, the MA368001021 circuit breaker delivers dependable overcurrent protection for high‑load applications. With an 800A rating and a 600V maximum, this unit is built for maintenance, retrofit, and replacement projects where exact specifications matter and downtime is minimized.

Key advantages

• Exact-fit compatibility—the MA368001021 part number is your best reference for matching panels and configurations within Square D ecosystems.
• High-capacity protection—800A rated interrupting capability protects feeders and large circuits from overloads and faults.
• Versatile voltage handling—suitable for distribution in systems up to 600V, making it a solid choice for medium‑to‑high‑voltage applications.
• Reliable brand assurance—Square D is known for durable, consistent performance in industrial and commercial environments.
• Clear procurement path—by referencing a single part number, you reduce the risk of ordering the wrong device and streamline the retrofit or replacement workflow.

Specifications at a glance

• Amperage: 800A
• Voltage: 600V
• Part number: MA368001021
• Brand: Square D
• Type: Circuit Breaker

Ideal use cases

This high‑current breaker is well suited for industrial and commercial installations where large feeders require robust protection. Use it for:

• Maintenance and retrofits on legacy Square D panels that demand an 800A, 600V protective device
• Replacement of aging breakers in high‑demand service entrances and main feeders
• Upgrading protection in equipment rooms, production lines, or data‑center infrastructure that operates at elevated current levels

Compatibility and ordering guidance

To ensure seamless replacement, confirm fit and ratings before ordering. The MA368001021 reference is the most reliable way to verify compatibility with your Square D panel family and associated components. If you’re replacing an older device, matching the exact part number helps maintain the intended protection characteristics and system behavior without the need for panel redesign.