ABB P4LR 1KHL015107R0001 Circuit Breaker Release Module

Product Overview

The ABB P4LR 1KHL015107R0001 is a protective release and control module designed for ABB’s low-voltage circuit breaker systems. This intelligent unit plays a critical role in monitoring, protecting, and managing electrical circuits by providing precise trip functions and coordination with protective relays.

Engineered with ABB’s latest digital protection technology, the P4LR 1KHL015107R0001 ensures safe, efficient, and reliable operation of distribution and motor control systems. It offers superior fault detection, adjustable protection parameters, and seamless integration into industrial automation environments.

Key Features

Comprehensive Protection Functions: Overload, short-circuit, ground fault, and phase imbalance protection.

Digital Adjustable Settings: Allows precise configuration of trip thresholds and delay times.

High Accuracy Sensing: Monitors current, voltage, and thermal parameters in real time.

Compact Modular Design: Fits perfectly within ABB circuit breaker frames.

Strong Environmental Endurance: Designed to perform under vibration, temperature fluctuation, and electrical noise.

Communication-Ready: Supports integration with ABB control and monitoring systems.

Maintenance-Free Operation: Durable components minimize downtime and servicing needs.

Structure and Design

The ABB P4LR 1KHL015107R0001 consists of several key internal sections:

Sensing Module: Measures circuit parameters with high precision current and voltage sensors.

Microprocessor Unit: Processes incoming data and executes protection logic.

Trip Actuator Circuit: Sends accurate trip commands to disconnect faulty circuits.

Communication Interface: Enables data exchange with remote monitoring systems.

Front Display and Indicators: Provide local status, fault indication, and parameter adjustment options.

This modular architecture ensures excellent reliability and simplifies both installation and field replacement.

Applications

The P4LR 1KHL015107R0001 is suitable for a wide range of low-voltage power systems and industrial applications, including:

Power distribution networks and switchboards

Motor control centers (MCCs)

Industrial automation and manufacturing systems

Commercial and infrastructure electrical installations

Renewable energy distribution panels

Its versatility makes it a vital component in ensuring power system safety and operational continuity.

Technical Specifications

(Provided in descriptive format for variety and readability.)

The ABB P4LR 1KHL015107R0001 operates within a rated voltage range of 100–690 V AC and supports rated currents up to 1600 A, depending on configuration. The module provides adjustable time-current characteristics, allowing users to fine-tune trip curves for system coordination.

Its response time to fault conditions is less than 20 milliseconds, ensuring immediate isolation during overcurrent or short-circuit events. The module functions efficiently in an ambient temperature range from –25°C to +70°C, and it is built using flame-retardant materials with excellent dielectric strength.

Communication options include Modbus RTU and ABB’s proprietary fieldbus protocols, enabling real-time monitoring of breaker status and event logging.

Installation and Setup

Mounting: Attach the P4LR module to the designated circuit breaker compartment.

Connection: Link the module to current transformers (CTs) and voltage inputs following ABB’s wiring guide.

Configuration: Set parameters such as long-time, short-time, and instantaneous trip values via the front interface or control software.

Testing: Conduct trip tests to ensure correct configuration and coordination with upstream/downstream protection devices.

Safety Recommendations:

Ensure all circuits are de-energized before installation.

Verify correct polarity and grounding.

Maintain clearance for cooling and accessibility.

Maintenance and Reliability

The ABB P4LR 1KHL015107R0001 is built for long-term reliability with minimal servicing. Recommended practices include:

Annual functional checks and recalibration if necessary.

Cleaning of terminals and connectors to prevent oxidation.

Firmware updates through ABB diagnostic tools for optimal performance.

The module’s solid-state construction minimizes moving parts, ensuring exceptional durability and reduced maintenance cycles.

Advantages

Rapid fault detection and tripping for equipment safety.

Flexible configuration for diverse applications.

Easy integration with ABB’s intelligent protection systems.

High immunity to electrical disturbances.

Compact footprint reduces panel space requirements.

Proven ABB quality for stable, long-term operation.

Conclusion

The ABB P4LR 1KHL015107R0001 Circuit Breaker Release Module embodies ABB’s commitment to advanced electrical protection and automation. Combining precision sensing, smart protection logic, and robust construction, it ensures dependable system performance across industrial and commercial power networks.

This module not only enhances safety and reliability but also supports predictive maintenance and data-driven energy management, making it an indispensable component in modern low-voltage protection systems.