Product Overview

In modern low-voltage power distribution systems, reliable protection devices are essential for preventing equipment damage, improving electrical safety, and ensuring continuous operation. The ABB PR122/P-LSIG E1-E6 1SDA058198R1 Overcurrent Release is an advanced electronic protection unit designed for ABB SACE Emax air circuit breakers, providing accurate monitoring and protection against electrical faults.

The PR122/P-LSIG E1-E6 combines multiple protection functions, including overload protection, short-circuit protection, instantaneous fault protection, and earth fault protection. It is designed to continuously monitor electrical parameters and quickly initiate circuit breaker operation when abnormal conditions occur.

This overcurrent release is suitable for industrial power distribution systems, energy facilities, manufacturing plants, and large electrical installations requiring reliable protection and precise fault management.

The ABB PR122/P-LSIG E1-E6 is compatible with ABB SACE Emax circuit breaker systems, including E1, E2, E3, E4, and E6 frame sizes. It provides a flexible protection solution for different low-voltage power applications.

With dimensions of 155 × 95 × 70 mm and a weight of 1 kg, the ABB PR122/P-LSIG E1-E6 offers a compact design for integration into industrial circuit breaker assemblies.

Technical Specifications

Function and Working Principle

The ABB PR122/P-LSIG E1-E6 operates as an intelligent protection module installed within an air circuit breaker system.

During normal operation, the overcurrent release continuously measures electrical parameters such as current values and system conditions. When abnormal current levels are detected, the internal electronic protection logic evaluates the fault type and sends a trip command to the circuit breaker mechanism.

The basic working process includes:

• Monitoring electrical current conditions
• Detecting overload situations
• Identifying short-circuit faults
• Detecting earth fault conditions
• Processing protection algorithms
• Sending trip commands to the breaker

Main protection functions include:

• L – Long-time protection: Protects against overload conditions caused by excessive current over time.
• S – Short-time protection: Provides delayed short-circuit protection.
• I – Instantaneous protection: Provides rapid response to severe short-circuit faults.
• G – Ground fault protection: Detects abnormal current leakage to ground.

Role in Industrial Power Systems

The ABB PR122/P-LSIG E1-E6 plays an important role in industrial electrical protection systems.

It is commonly integrated with:

By providing fast and accurate fault detection, the module helps reduce equipment damage, improve electrical safety, and maintain system reliability.

Industrial Applications

The ABB PR122/P-LSIG E1-E6 Overcurrent Release is widely used in industrial power distribution applications.

The module is suitable for installations where accurate fault detection and dependable circuit protection are required.

Installation and System Integration

Proper installation and configuration are important for achieving reliable protection performance.

Recommended installation procedures:

• Install the release unit into the compatible ABB Emax circuit breaker
• Connect required electrical interfaces
• Verify current sensing connections
• Configure protection parameters
• Test trip functions
• Perform system commissioning

During commissioning, engineers should verify:

• Correct installation position
• Protection setting values
• Current measurement accuracy
• Trip response performance
• Alarm indications
• Communication functions

Correct configuration ensures effective protection and minimizes unnecessary circuit interruptions.

Protection Functions and Settings

The ABB PR122/P-LSIG E1-E6 provides multiple adjustable protection functions.

These protection features allow engineers to optimize electrical safety according to different application requirements.

Compatible Automation and Electrical Systems

The ABB PR122/P-LSIG E1-E6 can be integrated into various electrical distribution architectures.

Recommended Alternative Models

Key Advantages

• Advanced electronic overcurrent protection
• Supports overload and short-circuit protection
• Provides ground fault protection
• Compatible with ABB SACE Emax breakers
• Fast fault response capability
• Improves electrical system safety
• Compact industrial design
• Reliable operation in demanding environments
• Easy integration into low-voltage switchgear systems

Technical FAQs

What is the ABB PR122/P-LSIG E1-E6 used for?

The ABB PR122/P-LSIG E1-E6 is an electronic overcurrent release used for protecting ABB SACE Emax circuit breakers against overloads, short circuits, and ground faults.

What is the article number of ABB PR122/P-LSIG E1-E6?

The article number is 1SDA058198R1.

Which circuit breakers are compatible with the PR122/P-LSIG E1-E6?

The module is compatible with ABB SACE Emax circuit breakers including E1, E2, E3, E4, and E6 frame sizes.

What are the dimensions of the ABB PR122/P-LSIG E1-E6?

The dimensions are 155 × 95 × 70 mm.

What is the weight of the ABB PR122/P-LSIG E1-E6?

The total weight is 1 kg.

Conclusion

The ABB PR122/P-LSIG E1-E6 1SDA058198R1 Overcurrent Release is a reliable electronic protection solution designed for ABB SACE Emax low-voltage circuit breaker systems.

With advanced LSI and ground fault protection functions, accurate fault detection capability, and compact industrial design, the PR122/P-LSIG E1-E6 helps improve electrical safety, reduce equipment risks, and maintain stable power distribution performance.

For electrical engineers, automation professionals, and maintenance teams, the ABB PR122/P-LSIG E1-E6 provides an effective protection solution for modern industrial power systems.