1SDA105119R1 ABB MIR-V XT5 Rear Vertical Mechanical Interlock

Why Choose the ABB 1SDA105119R1 MIR-V XT5 Mechanical Interlock?

The ABB 1SDA105119R1 is an MIR-V rear vertical mechanical interlock designed for two ABB SACE Tmax XT5 moulded-case circuit breakers. Identified by ABB as MIR-V XT5 MECH,LOCK REAR VE. 2 C.BREAKER, this accessory provides mechanical coordination between two circuit breakers arranged vertically within a low-voltage distribution assembly.

As part of the ABB SACE Tmax XT mechanical accessory range, the MIR-V interlock is intended for installations where the operating states of two circuit breakers must be mechanically controlled. The interlocking mechanism helps prevent incompatible simultaneous operation, providing a physical layer of operating control independent of electrical command or control circuits.

The MIR-V configuration is intended for a vertical arrangement of two Tmax XT5 circuit breakers and operates from the rear of the breaker assembly. This makes it particularly suitable for switchboards, alternative-supply arrangements and transfer applications where available panel space or system design requires vertically positioned breakers.

Key Advantages

• Dedicated mechanical interlock for two ABB Tmax XT5 circuit breakers.
• Rear vertical configuration for vertically arranged breakers.
• Mechanically coordinates the operating states of two circuit breakers.
• Helps prevent incompatible simultaneous breaker operation.
• Suitable for alternative-supply and transfer arrangements.
• Provides mechanical interlocking independently of electrical control logic.
• Part of the coordinated ABB SACE Tmax XT accessory system.

Key Features

• ABB SACE Tmax XT mechanical accessory.
• MIR-V rear mechanical interlock.
• Designed for two Tmax XT5 circuit breakers.
• Vertical circuit-breaker arrangement.
• Rear-mounted mechanical interlocking configuration.
• Dedicated to coordinated operation of a dual-breaker installation.
• ABB designation: MIR-V XT5 MECH,LOCK REAR VE. 2 C.BREAKER.
• Suitable for low-voltage switchboard and power-distribution applications.

Reliable Mechanical Interlocking for Vertical Breaker Arrangements

Mechanical interlocking provides a physical means of coordinating two circuit breakers so that their permissible operating states are controlled by the mechanism itself. This is useful in power-distribution systems where two supply paths must not be connected simultaneously or where a defined switching sequence is required.

The ABB 1SDA105119R1 is specifically configured for two vertically positioned Tmax XT5 circuit breakers. Its rear-mounted MIR-V arrangement allows the interlocking mechanism to operate behind the breakers, providing a coordinated ABB solution for compact switchboards, transfer systems and industrial low-voltage distribution assemblies.

Typical Applications

• ABB SACE Tmax XT5 dual-breaker installations.
• Main and alternative supply arrangements.
• Utility and generator transfer systems.
• Vertically arranged switchboard circuit breakers.
• Low-voltage distribution boards and switchgear.
• Industrial power-distribution assemblies.
• Systems requiring mechanical prevention of incompatible breaker operating states.