1SDA066639R1 ABB Tmax XT MIR-P Mechanical Interlock Plate for XT1 Fixed

1SDA066639R1 ABB Tmax XT MIR-P Mechanical Interlock Plate for XT1 Fixed

ABB 1SDA066639R1 is a MIR-P mechanical interlock mounting plate designed for compatible Tmax XT1 fixed moulded-case circuit breakers used in horizontal or vertical rear interlocking arrangements.

SKU: 1SDA066639R1MPN: 1SDA066639R1
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Why Choose the ABB 1SDA066639R1 MIR-P Mechanical Interlock Plate?

The ABB 1SDA066639R1 is a MIR-P mounting plate for mechanical interlocking, specifically designed for ABB Tmax XT1 fixed moulded-case circuit breakers. As part of the ABB Tmax XT mechanical accessory range, it provides the breaker-specific mounting interface required when incorporating a fixed XT1 circuit breaker into a compatible rear mechanical interlocking system.

Mechanical interlocking is used where the operating states of two circuit breakers must be mechanically coordinated. The 1SDA066639R1 is the XT1 fixed-breaker plate used with ABB's compatible MIR-HR horizontal or MIR-VR vertical interlock frame assemblies, helping create an interlocking arrangement that prevents prohibited simultaneous breaker states.

Designed specifically for the ABB Tmax XT1 fixed (F) configuration, the MIR-P plate provides purpose-designed compatibility with the breaker and ABB interlocking hardware. For a two-breaker mechanical interlock, the appropriate interlock frame and a suitable MIR-P plate for each circuit breaker are required.

Key Advantages

  • Genuine ABB Tmax XT mechanical interlock accessory.
  • Purpose-designed MIR-P mounting plate for the XT1 frame size.
  • Specifically intended for fixed ABB Tmax XT1 circuit breakers.
  • Supports compatible horizontal and vertical rear mechanical interlocking arrangements.
  • Provides the breaker-specific interface between an XT1 and compatible MIR interlock hardware.
  • Supports mechanically coordinated switching in power distribution and changeover applications.
  • Designed as part of ABB's integrated Tmax XT accessory system.

Key Features

  • ABB Tmax XT MIR-P accessory.
  • Plate for mechanical interlock.
  • Compatible with XT1 circuit breakers.
  • Designed for the fixed (F) circuit-breaker configuration.
  • Suitable for compatible MIR-HR horizontal interlock arrangements.
  • Suitable for compatible MIR-VR vertical interlock arrangements.
  • Accessory classification: mechanical interlock.
  • Suitable for switchboards, changeover systems and controlled power distribution installations.

Reliable Mechanical Interlocking for Tmax XT1

Mechanical interlocking provides a physical method of coordinating the operating states of circuit breakers without relying solely on electrical control logic. In a compatible ABB Tmax XT arrangement, the interlock mechanism mechanically restricts breaker operation according to the configured switching sequence, making it useful in applications where two power sources or circuits must not be connected simultaneously.

The ABB 1SDA066639R1 provides the dedicated mounting plate required for a fixed XT1 circuit breaker within the compatible rear interlock system. A complete two-breaker installation requires an appropriate MIR-HR or MIR-VR frame assembly together with the correct MIR-P plate for each circuit breaker being interlocked.

Typical Applications

  • ABB Tmax XT1 fixed circuit-breaker installations.
  • Horizontal mechanical interlocking systems.
  • Vertical mechanical interlocking systems.
  • Two-breaker mechanical interlock arrangements.
  • Power source changeover installations.
  • Low-voltage switchboards and distribution panels.
  • Industrial power distribution systems.
  • Applications requiring mechanically coordinated circuit-breaker operation.

Technical Specifications

Series Tmax XT
Model / order code 1SDA066639R1
Product designation MIR-P x XT1 F
Product type Mechanical interlock mounting plate
Accessory type Mechanical interlock
Compatible frame size XT1
Circuit-breaker configuration Fixed (F)
Compatible interlock arrangements Horizontal / vertical
Product main type Mechanical accessory for Tmax XT
Standards IEC 60947-2, UL 489
GTIN / EAN 8015644693688
Net weight 0.578 kg
Package dimensions (W × H × D) 200 × 15 × 230 mm
Package gross weight 0.608 kg

Frequently Asked Questions

What is the ABB 1SDA066639R1 used for?

The ABB 1SDA066639R1 is a MIR-P mounting plate for mechanical interlocking of an ABB Tmax XT1 fixed moulded-case circuit breaker.

Which ABB circuit breaker is compatible with 1SDA066639R1?

The 1SDA066639R1 is specifically designed for the ABB Tmax XT1 fixed circuit-breaker configuration.

Is the ABB 1SDA066639R1 a complete mechanical interlock?

No. The 1SDA066639R1 is the breaker-specific MIR-P mounting plate. A complete two-breaker interlock requires the appropriate ABB MIR-HR horizontal or MIR-VR vertical frame assembly and a suitable MIR-P plate for each circuit breaker.

Can the ABB 1SDA066639R1 be used for horizontal and vertical interlocking?

Yes. The XT1 fixed MIR-P plate can form part of compatible ABB horizontal or vertical rear mechanical interlocking arrangements when combined with the appropriate interlock frame.

Why use a mechanical interlock between circuit breakers?

A mechanical interlock physically coordinates circuit-breaker operation and can prevent prohibited simultaneous breaker states, making it particularly useful in changeover, source-selection and controlled power distribution systems.

Trusted ABB Mechanical Interlocking

ABB Tmax XT mechanical interlocking accessories provide purpose-designed coordination between compatible moulded-case circuit breakers, supporting dependable source changeover and controlled switching in low-voltage power distribution systems.