Siemens HLMXD63B700L - 700 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens HLMXD63B700L delivers robust, high‑current protection for critical electrical networks. At 700A and 600V, this 3‑pole molded case circuit breaker is designed for dependable branch circuit overcurrent and short‑circuit protection in panelboards and load centers.

Key reasons to choose HLMXD63B700L:

• Secure bolt‑on mounting: provides a rigid, vibration‑resistant bus connection that maintains consistent electrical performance even in dynamic environments.
• Thermal‑magnetic trip unit: combines thermal and magnetic protection for stable, repeatable trip characteristics against overloads and sudden surges.
• OEM‑grade compatibility: engineered to be compatible with Siemens‑matched OEM load centers and panelboards, ensuring reliable integration and serviceability.
• Versatility across sectors: suitable for residential, commercial, and light industrial applications where high current protection is essential.

Technical snapshot

• Manufacturer: Siemens
• Part Number: HLMXD63B700L
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 700 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

What problems does it solve? When distributing power in a panelboard or load center, you need a high‑current, reliable protective device. The HLMXD63B700L is built to withstand the demands of busy equipment racks, reduce nuisance trips from minor surges, and protect downstream equipment from damaging faults. Its bolt‑on design ensures a solid bus connection that stays put even in environments with vibration or heavy electrical activity.

Ideal use cases include main feeders in commercial buildings, large lighting and power circuits in office spaces, and light industrial panels where a 700 A protection device is appropriate. It’s also a practical upgrade option when replacing older molded‑case breakers to restore stable, OEM‑grade protection in Siemens‑compatible panelboards.

Installation considerations: ensure the panelboard is compatible with Siemens HLMXD63B700L, use the bolt‑on mounting as designed, and verify that downstream conductors and load centers are sized for 700A and 600V service. With its robust thermal‑magnetic trip and rigid mounting, you gain predictable protection and easier serviceability over the life of the installation.