Siemens FXD63H150L - 150 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Meet the Siemens FXD63H150L, a 150 A, 600 V, 3-pole bolt-on molded case circuit breaker designed to protect your electrical system with precision and reliability. Built for dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, it delivers robust protection where it matters most.

Why this breaker stands out — a secure bolt-on mounting creates a rigid, vibration-resistant bus connection, reducing the risk of loose connections in environments with equipment movement. The thermal-magnetic trip unit provides stable, repeatable protection performance, delivering fast, predictable responses to overloads and short circuits while minimizing nuisance trips during normal load fluctuations.

Designed for seamless compatibility — engineered to work with matching OEM Siemens load centers and panelboards, ensuring smooth integration and reliable coordination with other protection devices in your electrical distribution.

Key specifications at a glance:

• Amperage Rating: 150 A
• Voltage Rating: 600 V
• Poles: 3
• Mounting Style: Bolt-on
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use cases — the FXD63H150L is well-suited for electricians and facilities teams deploying or upgrading three-phase electrical distributions in residential, commercial, and light industrial settings. Use it to protect feeders to motors, lighting, and equipment within Siemens-compatible panels, or as a reliable replacement in existing installations that require a 150 A, 3-pole, 600 V bolt-on breaker. Its rugged construction handles routine switching and fault events without compromising protection quality.

How it benefits your system — pairing a secure mechanical mount with a precise thermal-magnetic trip yields dependable fault protection with reduced maintenance and fewer false trips. This helps maintain panelboard coordination and contributes to minimal downtime in critical operations.

Whether you’re upgrading a panelboard, replacing a failed breaker, or equipping a new Siemens-based installation, the FXD63H150L from AmpState delivers trusted protection and compatibility in a compact, robust package.