PD63B140 - 1400 Amp Circuit Breaker

PD63B140 - 1400 Amp Circuit Breaker

Get dependable performance and superior protection with the Siemens PD63B140 circuit breaker. This heavy-duty, low-voltage molded-case breaker is built to handle demanding power distribution tasks in industrial and commercial settings. Thanks to its thermal-magnetic trip unit, it delivers dependable defense against overloads and short circuits, helping you keep critical systems running smoothly and safely. With a 1400 Amp rating and high interrupting capacity, the PD63B140 is engineered to support large-scale electrical installations while still fitting into standard panel arrangements.

Key Features and Benefits

• Dual-action thermal‑magnetic protection: safeguards your system from both prolonged overloads and sudden short circuits, ensuring consistent、and safety operation.
• High current capacity (1400 Amp): ideal for heavy-duty systems, making it a go-to breaker for substantial load demands.
• High interrupting power: interrupts up to 25 kA at 600 V and 50 kA at 480 V to help prevent damage from major electrical faults.
• Space-efficient design: compact form factor (9" × 16" × 6.19") allows flexible installation even in tighter electrical enclosures.
• Flexible wiring options: line and load side lugs accommodate 300–600 KCM copper or aluminum conductors, offering installation versatility.

Technical Specifications

• Product Type: Molded-case circuit breaker
• Frame Type: PD-Frame
• Current Rating: 1400 Amp
• Breaking/Interrupting Capacity:
  • 25 kA @ 600 V
  • 50 kA @ 480 V
• Poles: 3-pole
• Overall Dimensions:
  • Width: 9 inches
  • Height: 16 inches
  • Depth: 6.19 inches
• Standard Temperature Rating: 40 °C
• Wire Range: 300–600 KCM, copper or aluminum

Material Compliance and Certifications

• Industry Standards: The PD63B140 is built to meet rigorous international safety and performance standards.
• Certifications: It is compliant with UL 489 and IEC 60947‑2, ensuring that this circuit breaker meets accepted benchmarks for safety, reliability, and electrical performance.

Where It Works Best

• The PD63B140 shines when used in demanding environments such as manufacturing plants, large commercial buildings, data centers, and infrastructure installations. It’s particularly well-suited for main power distribution panels, heavy equipment circuits, and any application where dependable, long-term protection for large electrical loads is critical. If you’re installing or upgrading major electrical systems where failure is not an option, this breaker delivers the protection and performance you need.