1SDA054951R1 ABB MIR-P Type D T5-T5 Mechanical Interlock Plate

1SDA054951R1 ABB MIR-P Type D T5-T5 Mechanical Interlock Plate

ABB 1SDA054951R1 is a MIR-P Type D mechanical interlock plate for compatible SACE Tmax T5 400 fixed, plug-in or withdrawable and T5 630 fixed circuit breaker combinations.

SKU: 1SDA054951R1Alt SKU: T4-T5MPN: 1SDA054951R1
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Why Choose the ABB 1SDA054951R1 MIR-P Type D Mechanical Interlock Plate?

The ABB 1SDA054951R1 is a MIR-P Type D mechanical interlock plate designed for mechanical interlocking between two compatible ABB SACE Tmax T5 moulded case circuit breakers. As part of the ABB Tmax T accessory range, it provides the dedicated plate required to integrate selected T5 circuit breakers into a coordinated mechanical interlocking system.

The Type D configuration supports combinations using Tmax T5 400 fixed, plug-in or withdrawable circuit breakers and Tmax T5 630 fixed circuit breakers. Either interlocked breaker can therefore be a T5 400 in F/P/W execution or a T5 630 in fixed execution, providing flexibility when configuring compatible T5-to-T5 installations.

When used with the appropriate ABB MIR interlocking mechanism, the 1SDA054951R1 supports mechanical coordination between two circuit breakers so that incompatible simultaneous operation can be prevented. This makes it particularly suitable for transfer, alternative-source and power-distribution systems where two supply paths must be mechanically interlocked.

Key Advantages

  • Dedicated Type D plate for T5-to-T5 mechanical interlocking.
  • Supports Tmax T5 400 fixed, plug-in and withdrawable circuit breakers.
  • Also supports Tmax T5 630 fixed circuit breakers.
  • Designed for mechanical interlocking between two compatible circuit breakers.
  • Suitable for transfer, source-selection and changeover applications.
  • Genuine ABB accessory engineered for coordinated use with SACE Tmax T circuit breakers.

Key Features

  • ABB SACE Tmax T accessory.
  • MIR-P Type D mechanical interlock plate.
  • Designed for T5-to-T5 circuit breaker combinations.
  • Compatible with T5 400 fixed, plug-in or withdrawable execution.
  • Compatible with T5 630 fixed execution.
  • Used as part of an ABB MIR mechanical interlocking arrangement.
  • Mechanical interlocking function does not depend on electrical control logic.
  • Suitable for industrial and commercial electrical distribution assemblies.

Mechanical Interlocking for Coordinated T5 Switching

A mechanical interlock physically coordinates two circuit breakers so that the permitted operating state of one breaker depends on the position of the other. This provides a mechanical layer of protection against incompatible simultaneous closing and is particularly valuable in systems where two electrical sources or supply paths must remain separated.

The ABB 1SDA054951R1 provides the MIR-P Type D plate for compatible T5-to-T5 arrangements. It accommodates combinations of T5 400 F/P/W and T5 630 fixed circuit breakers and is used with the appropriate ABB MIR interlocking mechanism to create a coordinated mechanical interlock assembly.

Typical Applications

  • Mechanical interlocking between two compatible ABB Tmax T5 circuit breakers.
  • Mains and standby generator transfer systems.
  • Alternative power-source selection assemblies.
  • Transformer and incomer switching arrangements.
  • Industrial switchboards and power distribution panels.
  • Commercial and infrastructure electrical distribution systems.

Technical Specifications

Series SACE Tmax T
Model / order code 1SDA054951R1
Product designation MIR-P tipo D (T5-T5)
Product type Mechanical interlock plate
Interlock family MIR-P
Interlock plate type Type D
Interlocking arrangement T5-T5
Number of circuit breakers 2
First breaker compatibility T5 400 fixed / plug-in / withdrawable or T5 630 fixed
Second breaker compatibility T5 400 fixed / plug-in / withdrawable or T5 630 fixed
Configuration type Loose or configurable
Standards IEC
Product net weight 1.9 kg
EAN 8015644560904
Minimum order quantity 1 piece
ABB product group 310511-T-Max T4 - T8

Frequently Asked Questions

What is the ABB 1SDA054951R1?

The ABB 1SDA054951R1 is a MIR-P Type D mechanical interlock plate designed for mechanical interlocking between two compatible ABB SACE Tmax T5 circuit breakers.

Which Tmax T5 circuit breakers are compatible with the ABB 1SDA054951R1?

The Type D plate supports T5 400 fixed, plug-in or withdrawable circuit breakers and T5 630 fixed circuit breakers.

Can the ABB 1SDA054951R1 interlock two T5 400 circuit breakers?

Yes. The Type D arrangement supports two compatible T5 400 circuit breakers in fixed, plug-in or withdrawable executions, subject to the complete ABB MIR interlock configuration.

Can the ABB 1SDA054951R1 be used with a T5 630 circuit breaker?

Yes. The Type D plate supports a T5 630 in fixed execution, including compatible combinations with another T5 630 fixed breaker or a T5 400 fixed, plug-in or withdrawable breaker.

Is the ABB 1SDA054951R1 a complete mechanical interlock?

No. The 1SDA054951R1 is the MIR-P Type D interlock plate and is used with the appropriate ABB MIR mechanical interlocking mechanism to form the complete two-breaker interlock arrangement.

Trusted by Electrical Professionals Worldwide

ABB SACE Tmax circuit breaker accessories provide coordinated switching, interlocking and control solutions for industrial and commercial electrical distribution systems, helping panel builders, engineers and system integrators implement dependable source-selection and power-management arrangements.