Trip Unit

All the electrical industry buzzwords—system coordination, selectivity, reliability, arc flash protection—are addressed with GE’s trip unit.


Now offered in GE Spectra SG600 and SK1200 circuit breakers, and backwards compatible with existing Spectra MicroVersa Trip breakers, GE’s microEntelliGuard trip unit delivers: 

  • Flexible time-current curve shaping in the industry for system coordination
  • Instantaneous ZSI (Zone Selective Interlocking) for selectivity
  • Waveform capture and event log for reliability
  • Reduced energy let-through (RELT) for arc flash protection.

The trip unit also features:

  • An HMI (human machine interface) based on the same platform as the trip units that provides a backlit LCD display with five-button tactile keypad and LED status to show the “health” of trip unit
  • Fully adjustable time-current curves with multiple curve shapes, slopes, and delay bands
  • Ground Fault Trip or Alarm with multiple slopes for system coordination
  • Current metering is a standard feature, with options for power, energy and reactive power metering and waveform capture
  • Event Log with date/time stamp to record the last 10 events
  • Test set jack for GTUTK20 test kit
  • Modbus communications system with user-selectable address assignment for communication directly with building-power management systems.

Specification engineers are available to assist end-users and consulting engineers with system design to fully optimize the capabilities of the microEntelliGuard trip unit.

No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
Variable speed drives: Smooth, efficient, electrically quite motion control; Process control upgrades; Mobile intelligence; Product finalists: Vote now; Product Exclusives
Machine design tips: Pneumatic or electric; Software upgrades; Ethernet advantages; Additive manufacturing; Engineering Leaders; Product exclusives: PLC, HMI, IO
This article collection contains the 5 most referenced articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again
Pipeline vulnerabilities? Securing hydrocarbon transit; Predictive analytics hit the mainstream; Dirty pipelines decrease flow, production—pig your line; Ensuring pipeline physical and cyber security