1SDA101989R1 ABB MIR-P XT5 W/P 400A FP x MIR-H/V XT6 Mechanical Interlock Plate

Why Choose the ABB MIR-P XT5 W/P 400A FP x MIR-H/V XT6 Mechanical Interlock Plate?

The ABB MIR-P XT5 W/P 400A FP x MIR-H/V XT6, order code 1SDA101989R1, is a genuine SACE Tmax XT rear mechanical interlock plate designed for installations combining compatible XT5 and XT6 moulded-case circuit breakers. It forms part of ABB’s MIR rear mechanical interlocking system, providing the XT5 mounting interface required for horizontal or vertical mechanical interlocking between two circuit breakers.

This version is specifically designed for an XT5 400 A plug-in or withdrawable circuit breaker used with the MIR-H or MIR-V rear mechanical interlock arrangement and an XT6 circuit breaker. Mechanical interlocking prevents the associated breakers from being closed simultaneously, supporting controlled changeover and mutually exclusive switching arrangements in low-voltage distribution systems.

The 1SDA101989R1 is supplied as an accessory plate for the ABB SACE Tmax XT platform and is manufactured for direct compatibility with the corresponding interlocking components. With compact dimensions of 160 × 120 × 190 mm and a net weight of 1.6 kg, it provides a purpose-designed solution for integrating rear mechanical interlocking into compatible switchboard assemblies.

Key Advantages

• Genuine ABB SACE Tmax XT mechanical interlock accessory.
• Designed for XT5 plug-in or withdrawable 400 A frame configurations.
• Supports rear horizontal or vertical mechanical interlocking with XT6 circuit breakers.
• Helps prevent two mechanically interlocked circuit breakers from being closed simultaneously.
• Purpose-designed ABB plate simplifies integration with the compatible MIR interlocking system.
• Suitable for professional low-voltage switchboards and controlled changeover arrangements.

Key Features

• ABB MIR-P rear mechanical interlock plate.
• ABB order code 1SDA101989R1.
• Designed for SACE Tmax XT5 and XT6 applications.
• XT5 compatibility: plug-in / withdrawable 400 A frame.
• Supports MIR-H horizontal and MIR-V vertical rear mechanical interlock arrangements.
• Designed for mechanical interlocking between two circuit breakers.
• Loose/configurable Tmax XT accessory.
• Manufactured in accordance with IEC 60947-2.

Reliable Mechanical Interlocking for Power Distribution

Mechanical interlocking is used in electrical distribution systems where two circuit breakers must not be closed at the same time. A mechanical linkage physically coordinates the operating states of the associated breakers, making this arrangement particularly useful for source-transfer, changeover and other mutually exclusive switching applications.

The ABB 1SDA101989R1 provides the dedicated XT5 plug-in/withdrawable 400 A plate required when integrating an XT5 with an XT6 through ABB’s rear horizontal or vertical mechanical interlock system. Using the correct ABB interlock components ensures mechanical compatibility with the intended SACE Tmax XT switchgear arrangement.

Typical Applications

• ABB SACE Tmax XT5 and XT6 circuit-breaker assemblies.
• Automatic and manual source-transfer systems.
• Main and standby supply changeover arrangements.
• Generator and mains interlocking applications.
• Industrial low-voltage switchboards and distribution panels.
• Systems requiring mutually exclusive operation of two circuit breakers.