• Large, intuitive, customizable, touchscreen HMI (Human-Machine Interface)
• Multi-breaker automation and control with Trip Circuit Monitoring and Breaker Monitoring
• High analog and digital input/output counts: Up to 28 CT, 16 VT, 72 contact sense, 48 outputs or 3 Ethernet ports (pending configuration, counts not cumulative)
• Auxiliary analog inputs- 4 to 20 mA, 0 to 10 V, 50 to 100 mV, and RTD
• Field upgradable hardware and software
• Advanced cybersecurity features
• IRIG-B, NTP, and DNP synchronized clock with battery backup
• USB-C, RS-485, copper Ethernet and fiber Ethernet ports, HSR and PRP redundancy
• Protocol Support: Modbus®, DNP, IEC 61850 Edition 2, Synchrophasor, BESTnet™Plus remote HMI, and email alerts.
• Advanced recording
• Targets and alarms
• 30+ million data point Oscillography log (COMTRADE format) with Fault Summary
• 8,000-record Sequence of Events log
• Load profile recording
• Transformer Damage (51TF)
• Diagnostic log
• Demand
• Power quality
• Energy

* Optional

• Entering protection settings with confidence is easy with BESTCOMSPlus® software that provides intuitive settings with graphs, built-in error checking, and summary screens.
• Complex protection is easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the expensive need for physical hardware.
• Adaptable coordination for difficult applications is made possible by 24 industry-standard timing curves and five user-defined curves.
• Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus®.
• Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
• Get the information you need for system analysis with distance-to-fault, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
• Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
• Customize displayed information to meet different application needs with user-definable indicators and labels.
• Direct control of internal logic using Select-and-Operate buttons available on the front panel.
• Fully configurable analog outputs can be used to drive analog meters. Easily assigned trip points can be scaled by the user to reflect measured parameters.
• Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
• Reduce installation costs and improve reliability by mounting an optional RTD module near the point of measurement to minimize cable lengths.
• UL Class 1, Div 2 rating allows the optional RTD module to be installed in harsh environments.

* Optional

• Entering protection settings with confidence is easy with BESTCOMSPlus® software that provides intuitive settings with graphs, built-in error checking, and summary screens.
• Complex protection is easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the expensive need for physical hardware.
• Adaptable coordination for difficult applications is made possible by 24 industry-standard timing curves and five user-defined curves.
• Backup and cogeneration applications benefit from frequency tracking capabilities.
• Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus®.
• Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
• Get the information you need for system analysis with distance-to-fault, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
• Increased security and selectivity provided with optional differential protection.
• Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
• Customize displayed information to meet different application needs with user-defined indicators and labels.
• Direct control of internal logic using Select and Operate buttons available on the front panel.
• Reliable protection even during abnormal operation events such as high ambient temperature, blocked cooling, or worn bearings, with optional RTD module.
• Optional RTD module with fully configurable analog outputs can be used to drive analog meters. Easily assigned trip points can be scaled by the user to reflect measured parameters.
• Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
• Reduce installation costs and improve reliability by mounting an optional RTD module near the point of measurement to minimize cable lengths.

* Optional

• Intertie protection provided at the point of common coupling (PCC) between non-utillty distributed generation (DG) and the electric utility/area power system (Area EPS).
• Entering protection settings with confidence is easy with BESTCOMSPlus® software that provides intuitive settings with graphs, built-in error checking, and summary screens.
• Complex protection is easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the expensive need for physical hardware.
• Adaptable coordination for the most difficult applications made possible by 24 industry-standard timing curves and five user-defined curves.
• Dual primary zone application protection with optional second set of CTs.
• Islanding-detection protection and automatic load-shed schemes possible with the use of frequency elements.
• Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus®.
• Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
• Get the information you need for system analysis with distance-to-fault, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
• Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
• Customize displayed information to meet different application needs with user-definable indicators and labels.
• Direct control of internal logic using Select and Operate buttons available on the front panel.
• Optional RTD module with fully configurable analog outputs can be used to drive analog meters. Easily assigned trip points can be scaled by the user to reflect measured parameters.
• Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
• Reduce installation costs and improve reliability by mounting an optional RTD module near the point of measurement to minimize cable lengths.

* Optional

• Entering protection settings with confidence is easy with BESTCOMSPlus®. Software provides intuitive settings with graphs, built-in error checking, and summary screens.
• Complex protection is easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the expensive need for physical hardware.
• Adaptable coordination for difficult applications is made possible by 24 industry-standard timing curves and five user-defined curves.
• Protect synchronous motors with loss of synchronization pullout protection.
• Accurate protection for high inertia starts, unbalanced voltages, and conditions of inadequate cooling.
• Complete and flexible protection for motors and motor-driven processes.
• Captured data from previous motor starts improves motor-protection settings.
• More efficient maintenance scheduling is possible from motor usage-based data.
• Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus™.
• Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
• Get the information you need for system analysis with motor start records, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
• Increased security and selectivity provided with optional differential protection.
• Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
• Customize displayed information to meet different application needs with user-definable indicators and labels.
• Direct control of internal logic using Select-and-Operate buttons available on the front panel.
• Optional RTD module with fully configurable analog outputs can be used to drive analog meters. Easily assigned trip points can be scaled by the user to reflect measured parameters.
• Reliable protection even during abnormal operation events such as high ambient temperature, blocked cooling, or worn bearings, with optional RTD module.
• Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
• Reduce installation costs and improve reliability by mounting an optional RTD module at the motor to minimize cable lengths.

* Optional

• Entering protection settings with confidence is easy with BESTCOMSPlus® software that provides intuitive settings with graphs, built-in error checking, and summary screens.
• Complex protection is easy to configure and understand with preprogrammed schemes, drag-and-drop logic, user labels, and notes provided by BESTlogic™Plus.
• The Offline Simulator in BESTlogic™Plus helps identify and troubleshoot the logic without the need for expensive physical hardware.
• Adaptable coordination for difficult applications is made possible by 24 industry-standard timing curves and five user-defined curves.
• More efficient maintenance scheduling is possible by using through-fault counter data.
• Meet your modern communications needs with 10/100Mbit copper or 100Mbit fiber-optic Ethernet with IEC 61850, DNP, or Modbus®.
• Connection is easy, even when using multiple large wires, with large screw terminals for all terminations.
• Get the information you need for system analysis with distance-to-fault, oscillography, demand metering, power quality, breaker monitoring, and other data provided by the BE1-11.
• Increased security and selectivity provided with differential protection.
• Provides more accurate detection of inrush current on modern transformers by using shared harmonic blocking.
• Easily navigate settings and metering with the intuitive Human Machine Interface (HMI) menu and large LCD display.
• Customize displayed information to meet different application needs with user-definable indicators and labels.
• Direct control of internal logic using Select and Operate buttons available on the front panel.
• Reliable protection even during abnormal operation events such as high ambient temperature, or blocked cooling with the optional RTD module.
• Optional RTD module with fully configurable analog outputs can be used to drive analog meters. Easily assigned trip points can be scaled by the user to reflect measured parameters.
• Up to 14 combined alarm and trip temperature monitoring points are possible using an optional RTD module.
• Reduce installation costs and improve reliability by mounting an optional RTD module near the point of measurement to minimize cable lengths.

• Simplify protection by covering a wide range of applications using ES relays.
• Sophisticated fundamental sensing technology gives you high-end harmonic protection capabilities that prevent false tripping and allows you to be more selective.
• DIN-rail mounting provides low-cost, fast, easy, and compact installation.
• Relay settings are simple and intuitive, making setup fast with no PC required.
• Red and green LEDs on the front panel provide intuitive, easy-to-understand indication of system status.
• Digital microprocessor design is extremely accurate to ensure a high level of dependability and security, giving you confidence in your settings.
• The ES relay self-monitors to detect internal component failure and, in the unlikely event of an internal failure, flashes the Power LED.
• Models are available in six standard input voltages.
• Many ES relay models are self-powered, eliminating the need for additional power sources.
• Conformal coating improves protection against dust and corrosion.
• Accurate, repeatable, and reliable operation.