Product Insight
The ABB PR122/P-LSIG E1-E6 1SDA058198R1 is an advanced electronic overcurrent release unit engineered for the SACE Emax air circuit breaker platform. Designed to deliver precise protection and system stability, it integrates LSIG (Long-time, Short-time, Instantaneous, and Ground fault) protection functions, making it a reliable core component for modern low-voltage power distribution systems.
With its intelligent protection logic and flexible configuration, this unit supports critical infrastructure where operational continuity and electrical safety are non-negotiable. It is particularly valued for its adaptability across E1 to E6 breaker frames, ensuring seamless integration into diverse industrial environments.
Technical Specifications
| Parameter | Details |
|---|
| Model | PR122/P-LSIG E1-E6 |
| Part Number | 1SDA058198R1 |
| Protection Functions | L, S, I, G (LSIG) |
| Compatible Breakers | SACE Emax E1, E2, E3, E4, E6 |
| Rated Control Voltage | 24 V DC |
| Mounting Type | Integrated trip unit |
| Configuration Type | Configurable / Modular |
| Standards | IEC |
| Dimensions | Compact design (< 50 cm overall size class) |
| Net Weight | Approx. 1.0 kg |
| Package Weight | Approx. 1.5 kg |
Typical Use Cases
This overcurrent release is widely deployed in power distribution systems where protection accuracy and system coordination are essential. It is commonly used in industrial plants, utility substations, commercial buildings, and energy-intensive facilities.
Its LSIG protection capabilities make it particularly suitable for applications requiring selective coordination, such as motor control centers, data centers, and large-scale manufacturing lines. It ensures rapid fault detection while minimizing unnecessary interruptions.
Performance Advantages
The PR122/P-LSIG unit stands out for its precision and operational intelligence. Its multi-level protection ensures that electrical faults are handled efficiently without compromising system uptime. The modular design allows easy configuration and adaptation to evolving system requirements.
Another key strength lies in its seamless compatibility with ABB Emax breakers, reducing engineering complexity and installation time. The unit also supports enhanced diagnostics, enabling maintenance teams to quickly identify and address potential issues before they impact operations.
Its robust build quality and adherence to international standards further reinforce long-term reliability, making it a trusted solution for demanding environments.
Technical FAQs
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What does LSIG stand for?
Long-time, Short-time, Instantaneous, and Ground fault protection.
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Which breakers are compatible with this unit?
It is designed for Emax E1 to E6 series breakers.
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Is this unit configurable?
Yes, it supports flexible configuration depending on protection requirements.
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What is the operating voltage?
The control voltage is 24 V DC.
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Does it support ground fault protection?
Yes, ground fault (G) protection is included.
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What is the weight of the unit?
Approximately 1.0 kg.
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Is it suitable for industrial environments?
Yes, it is designed for industrial and commercial power systems.
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Can it be used in retrofit projects?
Yes, provided compatibility with Emax breakers is ensured.
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What standards does it comply with?
It complies with IEC standards.
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Is it a standalone device?
No, it functions as a trip unit integrated within a circuit breaker.
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