This product page details the advanced electronic trip unit, a sophisticated protection module designed for modern circuit breakers in high-current applications. This 3-pole unit features an adjustable long-delay protection range of 320-800A with a standard overload setting of 1.25x In, providing precise, customizable circuit protection for commercial and industrial power distribution systems.
Overview of the Electronic Trip Unit
The electronic trip unit represents the intelligent core of modern circuit protection systems. Because it utilizes microprocessor technology instead of traditional thermal-magnetic mechanisms, it offers significantly improved accuracy, adjustable settings, and advanced protection features that can be tailored to specific application requirements.
Key Features and Technical Specifications
This advanced trip unit is engineered for precision and flexibility. Therefore, here are its essential characteristics:
- Poles: 3-pole configuration for three-phase systems
- Current Range: Adjustable long-delay protection: 320-800A
- Overload Setting: Standard 1.25x In (125% of nominal current)
- Protection Functions: Long-delay, short-delay, instantaneous, ground fault
- Technology: Microprocessor-based electronic design
- Display: Digital readout for status and fault indication
- Communication: Optional communication capabilities for system integration
- Compatibility: Designed for specific circuit breaker models

Typical Applications and Use Cases
The advanced capabilities of this electronic trip unit make it suitable for demanding power distribution applications. For example, it is commonly used in:
- Main power distribution boards in industrial facilities
- Large commercial building electrical systems
- Data center power distribution units (PDUs)
- Manufacturing plant power distribution
- Hospital and healthcare facility electrical systems
- Water treatment and utility power systems
- Large motor control centers and feeder circuits
For complete circuit protection solutions, explore our range of compatible circuit breakers and accessories designed to work with electronic trip units.
Why Choose Electronic Trip Units?
Selecting this advanced electronic trip unit provides significant advantages over traditional protection methods. Firstly, the adjustable 320-800A range allows precise matching to actual circuit requirements, eliminating the need for breaker replacement when load conditions change. Secondly, the 1.25x In overload setting provides optimal protection for cables and equipment while allowing for normal operational current variations. Consequently, you achieve superior protection coordination, reduced nuisance tripping, and enhanced system reliability through precise, customizable protection settings.
Configuration and Setting Guidelines
Proper configuration of this electronic trip unit is essential for optimal system protection. Set the long-delay protection within the 320-800A range based on the actual circuit load requirements, considering both normal operating currents and allowable overload conditions. The standard 1.25x In setting typically provides appropriate overload protection for most applications while allowing for temporary current excursions. Furthermore, always coordinate protection settings with upstream and downstream devices to ensure selective tripping during fault conditions.
For detailed configuration guidelines and technical specifications, consult the comprehensive Schneider Electric Micrologic trip unit documentation.
Upgrade to Precision Circuit Protection Today
In summary, this advanced electronic trip unit represents the state-of-the-art in circuit protection technology. Finally, by incorporating this intelligent protection module into your power distribution systems, you ensure precise fault protection, enhanced system coordination, and improved operational reliability for your critical electrical infrastructure.