1SDA067122R1 ABB RC Inst HV 85–690V AC XT1 3P F Residual Current Release

Why Choose the ABB 1SDA067122R1 RC Inst x XT1 3p F?

The ABB 1SDA067122R1 is a genuine instantaneous residual current release designed for ABB SACE Tmax XT1 moulded case circuit breakers. Identified as RC Inst x XT1 3p F, it provides residual current protection for compatible fixed three-pole XT1 circuit breakers in low-voltage electrical distribution systems.

The ABB extended product designation is RC Inst HV 85–690 V AC XT1 3p F. Designed for operation across an 85–690 V AC voltage range, the device combines with the XT1 circuit breaker to provide instantaneous residual current protection where rapid disconnection in response to earth leakage or residual current is required.

As part of the ABB SACE Tmax XT accessory range, the 1SDA067122R1 is specifically engineered for fixed, three-pole Tmax XT1 circuit breakers. It is an IEC residual current device manufactured for coordinated integration with the XT1 platform and is suitable for industrial, commercial and infrastructure power distribution applications.

Key Advantages

• Genuine ABB instantaneous residual current release for Tmax XT1.
• Provides dedicated residual current protection for compatible circuit breaker installations.
• Wide operating voltage range of 85–690 V AC.
• Designed specifically for fixed three-pole ABB Tmax XT1 circuit breakers.
• Instantaneous RC design supports rapid response to residual current conditions.
• Part of the coordinated ABB SACE Tmax XT protection system.

Key Features

• RC Inst instantaneous residual current release.
• Operating voltage range: 85–690 V AC.
• Compatible with the ABB SACE Tmax XT1 frame.
• Designed for 3-pole circuit breakers.
• Suitable for fixed (F) circuit breaker execution.
• ABB order code 1SDA067122R1.
• Alternate catalogue number KXT1ERCINST-3.
• Designed to IEC 60947-2.

Instantaneous Residual Current Protection for Tmax XT1

Residual current devices detect an imbalance between the current flowing through the active conductors of an electrical circuit. Such an imbalance can indicate current flowing through an unintended path to earth. When used with a compatible circuit breaker, a residual current release provides an additional protection function by initiating circuit interruption when its operating conditions are reached.

The ABB 1SDA067122R1 is the RC Inst version for fixed three-pole Tmax XT1 circuit breakers. Its instantaneous operating characteristic is intended for applications where residual current protection without an intentional selective time delay is required, while its 85–690 V AC operating range supports a broad range of low-voltage distribution systems.

Typical Applications

• ABB Tmax XT1 fixed moulded case circuit breaker installations.
• Three-pole low-voltage distribution circuits.
• Industrial electrical distribution panels.
• Commercial switchboards and distribution boards.
• Applications requiring instantaneous residual current protection.
• OEM electrical equipment and power distribution assemblies.