1SDA066644R1 ABB MIR-P XT3 Plug-In Mechanical Interlock Mounting Plate

Why Choose the ABB 1SDA066644R1 MIR-P Mechanical Interlock Plate?

The ABB 1SDA066644R1 is a MIR-P mechanical interlock mounting plate designed specifically for plug-in ABB SACE Tmax XT3 moulded-case circuit breakers. As part of the ABB SACE Tmax XT accessory range, it forms part of the rear mechanical interlocking system used to coordinate the operation of circuit breakers within low-voltage switchboards.

The MIR-P plate provides the breaker-specific mechanical interface required when integrating a plug-in Tmax XT3 into a compatible ABB rear mechanical interlock arrangement. When combined with the appropriate MIR interlock chassis and corresponding mounting plate for the second breaker, the system mechanically restricts incompatible breaker operating combinations.

Designed specifically for the plug-in XT3 execution, the 1SDA066644R1 provides a purpose-built ABB solution for transfer, changeover and distribution applications requiring dependable mechanical coordination between circuit breakers. The interlocking function is mechanical and therefore does not depend on an electrical control supply.

Key Advantages

• Genuine ABB SACE Tmax XT mechanical interlock accessory.
• Designed specifically for plug-in Tmax XT3 circuit breakers.
• Provides the breaker mounting plate required for a compatible rear mechanical interlock system.
• Helps prevent incompatible simultaneous circuit-breaker operating states.
• Mechanical operation does not depend on an electrical control supply.
• Suitable for transfer, changeover and professional low-voltage distribution assemblies.

Key Features

• ABB SACE Tmax XT accessory range.
• MIR-P mechanical interlock mounting plate.
• Designed for Tmax XT3 frame size.
• Specifically intended for plug-in circuit-breaker execution.
• Forms part of ABB's rear mechanical interlock system.
• Used with the appropriate ABB MIR interlock chassis and mating breaker plate.
• Purely mechanical accessory requiring no control voltage.
• Suitable for coordinated interlocking of compatible Tmax XT circuit breakers.
• Designed in accordance with IEC 60947-2 and UL 489.
• RoHS compliant in accordance with applicable EU requirements.

Reliable Mechanical Circuit-Breaker Interlocking

Mechanical interlocking provides a physical means of coordinating circuit breakers so that prohibited operating combinations cannot occur. This is particularly useful in source-transfer and changeover systems where two supply breakers must not be closed simultaneously. Because the interlocking action is mechanical, its fundamental operating function does not rely on auxiliary control power or electrical logic.

The ABB 1SDA066644R1 is the dedicated MIR-P mounting plate for a plug-in SACE Tmax XT3. When combined with the appropriate ABB MIR-H or MIR-V interlock chassis and the required plate for the other circuit breaker, it forms part of a coordinated rear mechanical interlocking solution for professional low-voltage switchboards.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Mechanical interlocking of plug-in SACE Tmax XT3 circuit breakers.
• Main and standby power-supply arrangements.
• Source-transfer and changeover systems.
• Distribution systems requiring mechanically enforced breaker sequencing.
• Commercial, industrial and infrastructure electrical installations.