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Products for Protection, Monitoring, Control, Automation, and Metering


SEL-2506

Rack-Mount Remote I/O Module

Expand available device inputs and outputs, add MIRRORED BITS® communications to non-MIRRORED BITS devices. Implement inexpensive pilot protection.

SEL-2505 Remote I/O Module
UL CSA CE

  • Protection and Monitoring
    Add simple bus protection using contact inputs and outputs from existing relays. Add secure pilot communications to existing two- and three-terminal line applications. Add local or remote trip and close coil monitoring capability.
  • User-Configurable Labels
    Allow clear indication of system function and status.
  • Integration
    Expand the I/O of SEL relays that are MIRRORED BITS compatible.
  • Flexible Fiber-Optic Communications
    Built-in bidirectional fiber-optic port. Ordering options provide operating ranges from 500 meters to 110 kilometers, and compatibility with a variety of SEL fiber-optic transceivers and fiber types (see table 1).
  • Safety
    Replace control wiring to outside cabinets with fiber-optic cable to eliminate paths for dangerous voltages. All I/O terminals are behind the panel.
  • Dependability
    Use the communication monitoring feature to alarm when fiber-optic control cabling has been damaged, disturbed, or altered. Fiber-optic links are far less susceptible to electrical interference.
  • Easy Installation and Service
    Install rack-mount, compact two rack-unit chassis. Screw-terminal connectorized (STC) blocks for easy replacement of unit.

 

  • Inexpensively extend contact I/O on SEL relays that are MIRRORED BITS communications compatible
  • Add MIRRORED BITS communications to any protective relay (numeric or electromechanical) or other IED.
  • Connect two SEL-2506s together to share digital contact I/O information between any two IEDs.
  • Monitor data channel integrity to increase protection scheme or I/O security above that of traditional systems.
  • Create simple bus protection using existing line relay contact I/O and the SEL-2506.

 

Connector Optical Fiber Compatible Transceiver Maximum Recommended Distance (km)
V-System 200 µm multi-mode SEL-2800 1/2
ST 50, 62.5, or 200 µm multi-mode SEL-2815 15
ST 9, 10 µm single-mode SEL-2829 23
ST 9, 10 µm single-mode SEL-2830 80
ST 9, 10 µm single-mode SEL-2831 110

Table 1 - Flexible Fiber-Optic Options

 

 

Budgetary Retail, Quantity 1: $990
(Prices displayed are for planning purposes and are subject to change. Contact your SEL sales representative today for a quote on configurations and quantities to meet your needs.)

 

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Model Option Tables

 

 

 

Instruction Manual

 

drawings

Front View - Rack-Mount
Rear View
Dimensions

Making Electric Power Safer, More Reliable, and More Economical
Schweitzer Engineering Labs
2350 NE Hopkins Court - Pullman, WA 99163 – USA
Phone: +1.509.332.1890 - Fax: +1.509.332.7990