1SDA101979R1 ABB XT2-XT4 24 V Internal Bus Connection Kit

1SDA101979R1 ABB XT2-XT4 24 V Internal Bus Connection Kit

ABB 1SDA101979R1 is a SACE Tmax XT2 and XT4 connection kit for fixed and plug-in circuit breakers, providing 24 V DC auxiliary supply and internal bus connections with support for external-neutral and selectivity functions.

SKU: 1SDA101979R1MPN: 1SDA101979R1
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Why Choose the ABB 1SDA101979R1 XT2-XT4 Connection Kit?

The ABB 1SDA101979R1, catalogued as Side con+24V/IntBus cablXT2-XT4 F/P(old), is a dedicated SACE Tmax XT connection kit for compatible XT2 and XT4 moulded-case circuit breakers. It provides the connections required for the 24 V DC auxiliary supply and internal communication bus, supporting the integration of electronic trip-unit functions and accessories within low-voltage distribution systems.

Designed specifically for fixed and plug-in XT2 and XT4 circuit breakers, the kit provides a purpose-designed side connection arrangement rather than requiring individually assembled wiring components. ABB identifies the product as a connection kit for auxiliary supply, internal bus, external neutral and selectivity functions, supplied with the 24 V/internal-bus cable.

As a genuine ABB SACE Tmax XT accessory, the 1SDA101979R1 is engineered for compatibility with the associated circuit-breaker platform and is specified to IEC 60947-2. ABB also identifies this particular version as an older spare-part configuration, making the exact order code important when maintaining or replacing components in existing XT2 and XT4 installations.

Key Advantages

  • Genuine ABB SACE Tmax XT connection accessory.
  • Provides connection for a 24 V DC auxiliary supply.
  • Supports the internal bus connection within compatible Tmax XT systems.
  • Designed specifically for XT2 and XT4 circuit breakers.
  • Suitable for both fixed and plug-in configurations.
  • Purpose-designed connection kit simplifies integration of compatible electronic functions and accessories.

Key Features

  • ABB SACE Tmax XT connection kit.
  • ABB order code 1SDA101979R1.
  • 24 V DC auxiliary supply connection.
  • Internal bus cable connection.
  • Supports external neutral and selectivity connection functions within the applicable arrangement.
  • Compatible with SACE Tmax XT2 and XT4.
  • Suitable for fixed and plug-in circuit breakers.
  • Identified by ABB as an older spare-part version.
  • Designed in accordance with IEC 60947-2.

Reliable Auxiliary Power and Communication Integration

Electronic circuit-breaker functions can require auxiliary power and communication connections to support advanced monitoring, signalling and system-integration capabilities. A dedicated connection kit provides an organised interface between these functions and the compatible circuit breaker, helping maintain the intended electrical architecture of the SACE Tmax XT platform.

The ABB 1SDA101979R1 provides the 24 V DC auxiliary supply and internal bus cable connection for compatible fixed and plug-in XT2 and XT4 installations. Its purpose-designed construction makes it particularly useful when configuring or maintaining Tmax XT switchboards that use compatible electronic trip units and associated connectivity functions.

Typical Applications

  • ABB SACE Tmax XT2 circuit-breaker installations.
  • ABB SACE Tmax XT4 circuit-breaker installations.
  • 24 V DC auxiliary supply connections.
  • Internal bus connections for compatible electronic functions.
  • Industrial low-voltage switchboards and distribution panels.
  • Maintenance and replacement within existing fixed or plug-in Tmax XT assemblies.

Technical Specifications

Series SACE Tmax XT
ABB order code 1SDA101979R1
Alternate catalogue number KXTCTRIPCON
Product type Circuit breaker connection kit / accessory
Primary function Auxiliary supply and internal bus connection
Auxiliary supply 24 V DC
Bus connection Internal bus
Additional supported connections External neutral and selectivity
Suitable for XT2 and XT4
Circuit breaker configurations Fixed and plug-in
Configuration type Loose / configurable accessory
Standard IEC 60947-2
Product net weight 1.3 kg
EAN 8056221020237

Frequently Asked Questions

What is the ABB 1SDA101979R1 used for?

The ABB 1SDA101979R1 is a connection kit for compatible SACE Tmax XT2 and XT4 circuit breakers, providing connections for the 24 V DC auxiliary supply and internal bus and supporting associated external-neutral and selectivity functions.

Which ABB circuit breakers are compatible with the 1SDA101979R1?

The connection kit is designed for compatible ABB SACE Tmax XT2 and XT4 circuit breakers.

Can the ABB 1SDA101979R1 be used with fixed and plug-in breakers?

Yes. ABB specifies the 1SDA101979R1 for both fixed and plug-in XT2 and XT4 circuit-breaker configurations.

What auxiliary supply does the 1SDA101979R1 support?

The connection kit provides the cable connection for a 24 V DC auxiliary supply together with the internal bus connection.

Is the ABB 1SDA101979R1 a current Tmax XT connection kit?

ABB identifies this specific version as an older spare-part configuration, so the exact 1SDA101979R1 order code should be checked when maintaining an existing XT2 or XT4 assembly.

Trusted by Industrial Electrical Professionals Worldwide

ABB SACE Tmax XT accessories are engineered for coordinated integration with compatible ABB circuit breakers, supporting dependable auxiliary power, communication and advanced protection-system functionality in professional low-voltage installations.