Siemens | HLMXD63B800L | Circuit Breaker | 800A | 3-Pole | 600V

Siemens HLMXD63B800L Circuit Breaker is a purpose-built, high-current protection solution designed for demanding electrical systems. Rated at 800A and 600V, this 3-pole device delivers robust protection for feeders, distribution panels, and critical loads in industrial, commercial, and data-center environments. Built to meet Siemens’ reliability standards, it’s the go-to choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 800A
• Poles: 3-Pole
• Voltage rating: 600V
• Part reference: HLMXD63B800L

This breaker is specifically intended for scenarios where you need a reliable, OEM-aligned replacement that matches the original equipment specification. The part number is the most reliable reference for compatibility, so verify this exact model (HLMXD63B800L) against your panel or switchgear before purchasing.

Why this Siemens breaker matters

• With an 800A capacity, it supports sizable feeder protection in industrial lines, large commercial electrical rooms, and distribution bays without unnecessary upgrades.
• Designed to slot into existing Siemens installations where a matching 3-pole, 600V device is required, reducing downtime and compatibility risk.
• Stays aligned with Siemens standards so you can source spare parts and accessories that consistently pair with your existing gear.
• Using the exact part number HLMXD63B800L minimizes guesswork and ensures you’re getting the intended electrical characteristics.

Who should consider this model? electrical engineers, facility managers, and maintenance technicians planning panel retrofits, equipment upgrades, or replacements in environments requiring high-current protection at 600V. It’s particularly well-suited for facilities with Siemens-based switchgear that demands a precise 800A, 3-pole solution to maintain protection coordination and system uptime.

Practical considerations and use cases

• Maintenance and retrofit projects where the original equipment used a Siemens 800A, 3-pole, 600V breaker.
• Replacement of aging protection devices in large feeders or main distribution panels that require exact ratings for safe operation.
• New installations within Siemens-compatible electrical architectures that necessitate a high-current, 3-pole protection strategy.

Important purchasing note: Confirm fit and ratings before ordering. The part number HLMXD63B800L is your best reference for compatibility with your current Siemens equipment. If the exact match isn’t evident in your documentation, consult your panel labeling and cross-reference the model to avoid mismatch and ensure proper protection coordination.

When you’re ready to proceed, this Siemens circuit breaker offers a dependable balance of high-current capacity, clear compatibility cues, and the confidence that comes from choosing an OEM solution designed to perform in demanding environments.