Siemens HMXD63B800H Molded Case Circuit Breaker – Sentron Series – MD Frame – 800A – 3 Pole – 600V – Bolt-On – Thermal Magnetic – High Interrupting Capacity

The Siemens HMXD63B800H is a Sentron Series molded case circuit breaker designed for high-capacity industrial and commercial power distribution systems. Rated at 800A and 600V AC, this 3-pole MD frame breaker provides reliable protection using a thermal-magnetic trip unit with long-time overload and instantaneous short-circuit protection for critical electrical infrastructure.

Engineered for demanding applications, this breaker delivers high interrupting capacity performance and complies with UL 489 and IEC 60947-2 standards. It features a bolt-on mounting design and a non-interchangeable trip unit, ensuring secure installation and dependable operation in high fault current environments.

Specifications

• Brand: Siemens Breakers
• Part Number: HMXD63B800H
• Series: Sentron Series
• Type: MD Frame Molded Case Circuit Breaker
• Category: Molded Case Circuit Breaker / 3-Pole
• Connection Type: Bolt-On
• Trip Technology: Thermal Magnetic
• Trip Function: LI (Long-Time and Instantaneous)
• Duty Rating: 100% Rated Breaker
• Frame Type: MD Frame

Electrical Ratings

• Current Rating: 800A
• Voltage Rating: 600V AC
• Number of Poles: 3 Pole
• Phase: 3 Phase

Interrupting Capacity

• 50kA @ 600V
• 65kA @ 480V

Construction

• Sentron MD frame design
• Non-interchangeable trip unit
• Bolt-on mounting configuration
• No lugs installed (field termination required)
• Heavy-duty industrial molded case construction
• Rated for 40°C operation

Standards and Compliance

• UL 489 compliant
• IEC 60947-2 compliant
• CSA Approved

Physical Specifications

• Dimensions (H × W × D): 9" × 16" × 6"
• Weight: 54 lbs

Functions

• LI – Long-Time and Instantaneous Protection
• Thermal-magnetic fixed trip system
• High interrupting capacity design
• 100% continuous duty rating

Applications

• Industrial power distribution systems
• Commercial main distribution panels
• Heavy-duty feeder protection
• Data centers and critical infrastructure
• High fault current electrical systems
• Large-scale electrical distribution networks

Returns are easy

You may return items within 30 days of delivery for a refund.

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