Siemens FXD63B070 - 70 A, 600 V, 3-Pole Bolt-On Circuit Breaker | AmpState

Siemens FXD63B070 is a 70A, 600V, 3‑pole bolt‑on molded case circuit breaker engineered to deliver dependable branch‑circuit protection in panelboards and load centers. Built for consistent performance in real‑world electrical environments, this unit helps keep your 3‑phase systems safe and running smoothly.

• Secure bolt‑on mounting provides a rigid, vibration‑resistant bus connection, reducing loosening over time and ensuring reliable operation in panels subjected to movement or vibration.
• Thermal‑magnetic trip unit combines overload protection with fast, predictable short‑circuit protection, delivering stable trip characteristics across varying temperatures and load conditions.
• 3‑pole design protects all three phases simultaneously, ensuring safe shutdown of 3‑phase circuits when protection is required.
• 600V, 70A rating makes it suitable for a wide range of residential, commercial, and light industrial applications, from service panels to distribution boards.
• OEM panel compatibility is designed to fit Siemens‑based load centers and panelboards, enabling straightforward replacement, upgrades, and maintenance without compatibility concerns.
• Versatile protection for panelboards and load centers ideal for both new installations and retrofit projects where dependable branch‑circuit protection is critical to safety and uptime.

Who benefits from the FXD63B070? electricians and maintenance teams working in commercial spaces, light industrial environments, or residential settings that rely on robust 3‑phase protection and streamlined serviceability. If you need a reliable, easy‑to‑install breaker that keeps your distribution system safe from overloads and short circuits, this Siemens model delivers.

Key specifications at a glance

• Manufacturer: Siemens
• Part Number: FXD63B070
• Type: Thermal‑magnetic molded case circuit breaker
• Amperage Rating: 70 A
• Voltage Rating: 600 V
• Number of Poles: 3
• Mounting Style: Bolt‑on
• Application: Branch circuit overcurrent and short‑circuit protection

Investing in the FXD63B070 means prioritizing equipment protection, ease of maintenance, and long‑term reliability. Its rugged bolt‑on design and precise thermal‑magnetic protection help minimize nuisance trips and downtime, while its compatibility with Siemens OEM panelboards simplifies inventory and service workflows. For professional electrical installations where safety, performance, and installer confidence matter, this 3‑pole, 70A breaker is a practical, durable choice.