Siemens MBKFD3A Breaker Mounting Kit – Sentron Series – P1 Panel – 3 Phase – 600V – 250A Max

The Siemens MBKFD3A is a breaker mounting kit designed for use with revised Siemens P1 panel interiors, providing secure installation support for main or subfeed circuit breakers in industrial and commercial electrical distribution systems. Rated up to 250A, this kit is compatible with Siemens FD6, FXD6, HFD6, and HFXD6 circuit breaker types in 3-phase applications.

Engineered for reliability and ease of installation, the MBKFD3A includes all necessary mounting hardware required to properly secure breaker assemblies within compatible P1 panelboard systems. It is intended for use in updated P1 interiors and is not compatible with original P1 panels manufactured before January 2015.

Constructed with durable aluminum components, this mounting kit ensures long-term stability and secure mechanical support for high-performance electrical distribution systems operating up to 600V.

Specifications

• Brand: Siemens
• Part Number: MBKFD3A
• Series: Sentron Series
• Category: Breaker Mounting Kit / Hardware
• Panel Type: P1 Interior (Revised Design)
• Configuration: Main or Subfeed Breaker Mounting
• Amperage Rating: 250A Maximum
• Voltage Rating: 600V
• Phase: 3 Phase
• Material: Aluminum

Compatibility

• Breaker Types Supported:
  • FD6
  • FXD6
  • HFD6
  • HFXD6
• Panel Compatibility: Revised P1 interiors only (post-January 2015)

Construction

• Heavy-duty aluminum mounting structure
• Complete hardware assembly included
• Designed for secure breaker alignment
• Industrial-grade durability for long service life
• Precision-fit components for Siemens P1 systems

Functions

• Circuit breaker mounting support
• Main and subfeed breaker installation
• Mechanical alignment and stabilization
• Safe integration of FD/FXD/HFD/HFXD breakers
• Panelboard structural support

Applications

• Industrial power distribution systems
• Commercial electrical panelboards
• Main service entrance panels
• Subfeed breaker installations
• Siemens P1 panel interior upgrades

Returns are easy

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

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