html{display:none} SEL-7201 Feeder Protection Panel | Schweitzer Engineering Laboratories


Feeder Protection Panel

SEL-7201 configure-to-order (CTO) feeder protection panels provide advanced protection, control and communications for up to four feeders using either SEL-351S or SEL-751 Feeder Protection Modules with the following features:

  • Overcurrent, voltage, frequency, breaker failure, and power elements
  • Reclosing
  • Sync-check
  • Hot-line tagging
  • Remote breaker control via communications
  • Integration with zone-interlocked bus protection for the source bus (IEEE C37.234)
  • Battery and breaker wear monitoring
  • Sequential Events Recorder (SER)
  • Load profile reporting
  • Integration with advanced SEL-FT50 and SEL-FR12 Fault Transmitter and Receiver System distribution protection schemes
  • Dimensions of 92" high × 28" wide × 28" deep 
  • Customizable wire labels to match your existing nomenclature
  • Customizable nameplates to meet your nomenclature needs
  • Drawing package
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Starting At

$13,000 USD

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Available Application Modules

351 Feeder Protection module

SEL-351S Feeder Protection Module

In addition to the previously listed functions, this module provides advanced feeder protection for one feeder and offers breaker control functions via independent direct-acting pushbuttons on the relay. You can add up to four of these modules per panel.

751 Feeder Protection Module

SEL-751 Feeder Protection Module

In addition to the previously listed functions, this module provides the following:

  • Arc-flash detection
  • Breaker control via independent direct-acting pushbuttons on the SEL-9510 Control Switch Module

You can add up to two of these modules per panel to accommodate up to four feeders.

9510 Breaker Module

SEL-9510 Control Switch Module

This module provides breaker control and indication for one to four breakers. You can add up to two of these modules per panel.

3530 Automation Module

SEL System Automation Module

This module uses the SEL-3530 Real-Time Automation Controller (RTAC) to provide the following:

  • Automatic event collection and processing
  • Data concentration
  • System database
  • SCADA communications via multiple protocols, including DNP3 and IEC 61850
  • Engineering access
  • Substation control
3610  Module

SEL Port Server Module

This module provides 16 serial ports for IED integration and communications using the SEL-3610 Port Server.

2740S Module

SEL SDN Ethernet Switch Module

This module provides 24 Ethernet ports for IED integration and communications as well as software-defined networking (SDN) using the SEL-2740S Software-Defined Network Switch.

Time-Comms-Cyber Module

SEL Time, Cyber, and Communications Module

This module provides the following:

  • Precise time synchronization via multiple protocols, including the Network Time Protocol (NTP), IRIG-B, and the Precision Time Protocol (PTP), using the SEL-2488 Satellite-Synchronized Network Clock
  • Firewall, routing, VPN management, user-based authentication and authorization, IED password management, and Syslog using the SEL-3620 Ethernet Security Gateway
  • Inherently cyber-secure, reliable, and high-performance Ethernet communication using the SEL-2740S 


SEL CTO panels embody SEL best-known engineering methods and field-tested expertise in mechanical design, cable management, protection, precise time, automation, communications, and metering.

Application modules support common protection and automation practices while universal wiring to terminal blocks allows customization flexibility to adapt to any common primary equipment configuration and operation practice.

The SEL Difference

SEL uses the same world-class manufacturing principles for our panels that we use for all our industry-leading products. This allows us to design, manufacture, test, and deliver top-quality and comprehensive panel systems.

Complete vertical integration and standardized application designs help us maintain competitive prices and high quality while still meeting the highest functionality requirements and delivery within weeks, not months.

Design Principles

SEL CTO panels provide the following:

  • Fully redundant protection and breaker failure protection at all voltage levels.
  • Preconfiguration for cybersecurity framework integration.
  • Advanced SEL technology, such as arc-flash protection, zone-interlocked bus protection logic, and negative-sequence overcurrent protection, that is ready to deploy.
  • Simple integration to SCADA and HMI.
  • Continuous monitoring to reduce the possibility of hidden failures and facilitate extended testing intervals.
  • An industrial design for improved human performance.

Design Validation That Guarantees Expected Performance

We build a prototype and test each application module design to ensure it meets functional specifications. This process allows our manufacturing facility to properly document processes and test manufacturing equipment for production.

Drawing Package

SEL CTO panels come with comprehensive information using best practices for documenting protection and control circuitry. With standardization, the level of error-free detail is unmatched compared to what is practical with custom panels. SEL drawing packages are personalized to your substation project and nomenclature and include:

  • Application-specific circuit information.
  • One-line diagram customized with your primary equipment information.
  • AC schematics diagrams documenting relay sensing circuits, protection functions, and space to incorporate customer primary equipment information.
  • DC schematic diagrams with panel control circuits and space to include external connection points from marshalling cabinets and primary equipment.
  • Comprehensive logic diagrams documenting logic settings for the application, including local/remote control and indication, target LEDs, fault protection, alarms, event report triggers, open, close, reclose, and trip.
  • Panel layout drawing containing device locations, dimensions, and anchoring details.
  • Wiring diagram with wiring label nomenclature.
  • Nameplate drawing that includes all labels created and installed in the panel.


We engineer, manufacture, and test our panels to ensure adequate operation before delivery. When a panel arrives at your site, it is already verified as fully functional.

Warranty and Support

SEL panels are supported by an unmatched ten-year warranty and the industry’s best customer service.

The Firmware IDs for older versions of the firmware can typically be found in Appendix A of the instruction manual.