Siemens MBKQR3A Mounting Kit – Sentron Series – P1 Panel – 3 Phase – 225A Max – QR Series Compatible

The Siemens MBKQR3A is a breaker mounting hardware kit designed for revised Siemens P1 panel interiors, providing secure installation support for main or subfeed circuit breakers in commercial and industrial electrical distribution systems. Rated up to 225A, this kit is compatible with Siemens QR2, QRH2, HQR2, and HQR2H circuit breakers in 3-phase applications.

Engineered for reliability and ease of installation, the MBKQR3A includes all required mounting hardware necessary to properly secure breaker assemblies within compatible revised P1 panelboard systems. It is designed specifically for updated P1 interiors and is not suitable for use with original P1 panels manufactured before January 2015.

Built for durability and precision fit, this mounting kit ensures proper breaker alignment, mechanical stability, and safe integration into Siemens power distribution systems.

Specifications

• Brand: Siemens / ITE
• Part Number: MBKQR3A
• Type: MBKQR Mounting Hardware Kit
• Category: Motor Controls / Breaker Mounting Hardware
• Panel Type: Revised P1 Interior Systems
• Configuration: Main or Subfeed Breaker Mounting
• Amperage Rating: 225A Maximum
• Phase: 3 Phase
• Voltage System: Low Voltage Distribution

Compatibility

• Breaker Types Supported:
  • QR2
  • QRH2
  • HQR2
  • HQR2H
• Panel Compatibility: Revised P1 panels (post-January 2015 only)

Construction

• Heavy-duty industrial mounting hardware
• Precision-engineered alignment components
• Complete installation hardware included
• Durable metal construction for long service life
• Designed for Siemens P1 panel integration

Functions

• Circuit breaker mounting support
• Mechanical alignment and stabilization
• Main and subfeed breaker installation
• Safe integration of QR/HQR series breakers
• Panelboard structural support

Applications

• Industrial power distribution systems
• Commercial electrical panelboards
• Main service entrance panels
• Subfeed breaker installations
• Revised Siemens P1 panelboard system

Returns are easy

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

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