1SDA067127R1 ABB RC Inst 85–690 V AC Residual Current Release XT3 3P Fixed

1SDA067127R1 ABB RC Inst 85–690 V AC Residual Current Release XT3 3P Fixed

ABB 1SDA067127R1 is an instantaneous 85–690 V AC residual current release designed for compatible fixed three-pole ABB SACE Tmax XT3 moulded-case circuit breakers.

SKU: 1SDA067127R1MPN: 1SDA067127R1
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Why Choose the ABB 1SDA067127R1 Instantaneous Residual Current Release?

The ABB 1SDA067127R1 is a genuine instantaneous residual current release designed for use with fixed three-pole ABB SACE Tmax XT3 moulded-case circuit breakers. Identified by ABB as RC Inst HV 85–690 V AC XT3 3P F, it provides residual current protection for compatible low-voltage electrical distribution systems.

As part of the ABB SACE Tmax XT accessory range, the 1SDA067127R1 is specifically engineered for the XT3 frame in a fixed, three-pole configuration. Its instantaneous residual current functionality is designed to detect earth leakage or residual current conditions and initiate operation of the associated circuit breaker without an intentional selectivity delay.

Designed for systems operating across 85–690 V AC, the RC Inst provides a purpose-designed ABB solution for adding residual current protection to compatible fixed XT3 circuit breakers. Its integration with the Tmax XT platform makes it suitable for industrial switchboards, commercial distribution panels and other professionally engineered low-voltage installations.

Key Advantages

  • Genuine ABB instantaneous residual current release for Tmax XT3.
  • Designed specifically for fixed three-pole XT3 circuit breakers.
  • Suitable for systems operating across 85–690 V AC.
  • Provides residual current detection and protection.
  • Instantaneous characteristic provides operation without an intentional selectivity delay.
  • Purpose-designed for integration with compatible ABB SACE Tmax XT3 equipment.

Key Features

  • ABB SACE Tmax XT residual current device.
  • RC Inst instantaneous residual current release.
  • 85–690 V AC operating range.
  • XT3 frame compatibility.
  • Designed for 3-pole circuit breakers.
  • Suitable for fixed (F) installations.
  • Residual current protection accessory for moulded-case circuit breakers.
  • Designed to IEC 60947-2 requirements.

Instantaneous Residual Current Protection for ABB Tmax XT

Residual current protection monitors the balance of current flowing through the conductors of an electrical circuit. An imbalance can indicate current flowing through an unintended path to earth, and a compatible residual current release enables the circuit breaker to respond to such conditions as part of the designed protection system.

The ABB 1SDA067127R1 uses an instantaneous operating characteristic rather than the intentional time delay associated with selective residual current devices. Designed for fixed three-pole XT3 circuit breakers and an operating range of 85–690 V AC, it provides a dedicated ABB solution for residual current protection in compatible low-voltage distribution assemblies.

Typical Applications

  • ABB SACE Tmax XT3 three-pole circuit breaker installations.
  • Fixed moulded-case circuit breaker assemblies.
  • Low-voltage residual current protection systems.
  • Industrial electrical distribution panels.
  • Commercial switchboards and distribution boards.
  • Electrical systems requiring instantaneous residual current protection.

Technical Specifications

Series SACE Tmax XT
Product group T-Max XT 250 Range
Model / order code 1SDA067127R1
Extended product type RC Inst HV 85...690Vac XT3 3p F
Product type Instantaneous residual current release
Accessory type Residual current device
Compatible frame size XT3
Number of poles 3
Installation version Fixed (F)
Operating voltage 85–690 V AC
Protection function Residual current protection
Operating characteristic Instantaneous
Compatible circuit breaker type Moulded-case circuit breaker
Standard IEC 60947-2
Net weight 1.419 kg
UPC / EAN 8015644010348
Alternate catalogue number KXT3ERCINST-3
RoHS status Compliant with EU Directive 2011/65/EU and amendment 2015/863

Frequently Asked Questions

What is the ABB 1SDA067127R1 used for?

The ABB 1SDA067127R1 is an instantaneous residual current release used with compatible fixed three-pole ABB SACE Tmax XT3 moulded-case circuit breakers to provide residual current protection.

Which ABB circuit breaker is the 1SDA067127R1 compatible with?

The residual current release is designed for compatible fixed three-pole ABB SACE Tmax XT3 moulded-case circuit breakers.

What voltage range does the ABB 1SDA067127R1 support?

The ABB 1SDA067127R1 is specified for an operating voltage range of 85–690 V AC.

What does RC Inst mean on the ABB 1SDA067127R1?

RC Inst identifies the accessory as an instantaneous residual current release, providing residual current protection without the intentional selectivity delay associated with selective versions.

How many poles is the ABB 1SDA067127R1 designed for?

The ABB 1SDA067127R1 is designed for 3-pole XT3 circuit breakers in a fixed installation configuration.

Trusted ABB Circuit Breaker Protection

ABB SACE Tmax XT residual current accessories are designed to integrate with compatible Tmax XT moulded-case circuit breakers, helping electrical engineers and panel builders implement dependable residual current protection within modern low-voltage distribution systems.