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1SDA066643R1 ABB MIR-P XT3 Fixed Mechanical Interlock Plate

1SDA066643R1 ABB MIR-P XT3 Fixed Mechanical Interlock Plate

ABB 1SDA066643R1 MIR-P is a mechanical interlock plate designed for fixed SACE Tmax XT3 moulded-case circuit breakers as part of ABB’s rear mechanical interlocking system.

SKU: 1SDA066643R1MPN: 1SDA066643R1
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List Price £78.83 ex VAT
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Why Choose the ABB 1SDA066643R1 MIR-P Mechanical Interlock Plate?

The ABB 1SDA066643R1 is a MIR-P mechanical interlock plate designed specifically for fixed 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 prevent incompatible operating states between paired circuit breakers.

The MIR-P plate is mounted to the compatible breaker and works together with the appropriate mechanical interlock frame assembly. This arrangement enables a mechanical interlocking system to be created between circuit breakers, helping ensure that only the permitted breaker operating combinations are possible.

Designed for the fixed Tmax XT3 configuration, the 1SDA066643R1 provides the dedicated breaker-side plate required when integrating an XT3 into an ABB mechanical interlock arrangement. Its purpose-built design supports reliable mechanical coordination in switchboards, transfer systems and low-voltage distribution assemblies.

Key Advantages

  • Genuine ABB SACE Tmax XT mechanical interlock accessory.
  • Designed specifically for fixed Tmax XT3 circuit breakers.
  • Provides the breaker-mounted plate required for a compatible mechanical interlock system.
  • Helps prevent incompatible simultaneous breaker operating states.
  • Suitable for switchboards, transfer arrangements and power-distribution assemblies.
  • Part of ABB's coordinated Tmax XT mechanical accessory system.

Key Features

  • ABB SACE Tmax XT accessory range.
  • MIR-P mechanical interlock plate.
  • Designed for Tmax XT3 frame size.
  • For fixed circuit-breaker execution.
  • Used with ABB mechanical interlock frame assemblies.
  • Mechanical accessory requiring no electrical control supply.
  • 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 two circuit breakers so that prohibited operating combinations cannot occur. Unlike an electrical interlock, the function is achieved mechanically and therefore does not depend on a control power supply or logic circuit.

The ABB 1SDA066643R1 is the dedicated interlock plate for a fixed SACE Tmax XT3 breaker. When used with the appropriate ABB mechanical interlock frame and the corresponding plate for the second breaker, it forms part of a complete interlocking arrangement for professional low-voltage switchboards and distribution systems.

Typical Applications

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

Technical Specifications

Series SACE Tmax XT
ABB order code 1SDA066643R1
Alternate catalogue number KXT3MIRPLF
Product type Mechanical interlock plate
Accessory type Mechanical interlock
Compatible frame size XT3
Breaker execution Fixed
Application Rear mechanical interlocking system
Standards IEC 60947-2, UL 489
UPC / GTIN 8015644693701
Country of origin Italy
Net weight 0.55 kg

Frequently Asked Questions

What is the ABB 1SDA066643R1 used for?

The ABB 1SDA066643R1 is a MIR-P mechanical interlock plate used as part of a mechanical interlocking system for a fixed ABB SACE Tmax XT3 circuit breaker.

Which circuit breaker is compatible with the ABB 1SDA066643R1?

The 1SDA066643R1 is designed specifically for a fixed ABB SACE Tmax XT3 moulded-case circuit breaker.

Is the ABB 1SDA066643R1 a complete mechanical interlock system?

No. The MIR-P is the breaker-specific interlock plate and is used together with the appropriate ABB mechanical interlock frame assembly and the corresponding plate for the other breaker.

Does the ABB 1SDA066643R1 require electrical power?

No. The MIR-P is a purely mechanical accessory and does not require an electrical control supply to perform its interlocking function.

Where is the ABB 1SDA066643R1 typically used?

It is typically used in switchboards, transfer arrangements and low-voltage distribution systems where mechanical interlocking is required between circuit breakers to prevent incompatible operating states.

Trusted ABB Circuit-Breaker Accessories

ABB SACE Tmax XT mechanical interlocking accessories provide coordinated breaker-control solutions for low-voltage switchboards, helping ensure dependable operating sequences and preventing incompatible simultaneous switching states.