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ezPAC SA300
ezPAC SA300

The Total Solution for Add-On Substation Automation

The SATEC ezPAC™ SA300 Series Power Intelligence Unit is an advanced power analysis and control device unmatched in the utility and industrial environments.

The ezPAC™ SA300 Series is a fusion of many Intelligent Electronic Devices (IED) combined into a single powerful unit. ezPAC™ unites advanced control and automation functions, intelligent fault-recorder, power quality and sequence of events (SOE) with automatic analysis and reports. It also offers revenue metering, back-up protection equipment and control devices to provide a complete solution for substation and industrial automation. The ezPAC™ is suitable for retrofit as well as for new utility projects.

This instrument is an ideal cost-effective means to automating an electrical substation with existing electro-mechanical (EM) relays. The ezPAC™ series extends the life expectancy of EM protection relays for many years by providing the information lacking from these highly reliable devices without interfering with the protection scheme.

  • Fault Recorder
    • Up to 150A fault currents
    • Fault distance calculations
    • Up to 96 fast (1 ms) digital inputs or 16 fast (1 ms) analog inputs
    • Sequence of events with 1 ms accuracy
    • SNTP Time Synchronisation
  • Event/Data Log
    • Up to 57 channel simultaneous recording (8 AC, 1 VDC, and 48 digital input channels)
    • Synchronized waveforms from multiple devices in a single plot
    • Built-in 4 Mb logging memory, up to 128 Mb (option)
  • Multi-Tariff Revenue Meter
    • Class 0.2S Precision according to
    • IEC 62053-22
  • Advanced Power Quality Analysis
    • IEC 61000-4-30 Class A power quality
    • IEEE 1159 or EN50160 power quality analysis, statistics & reports
    • Sags/swells/interruptions detection
    • Pulsed transients detection (pulse width >150 ms)
    • IEC 61000-4-7 harmonics & inter-harmonics
    • Directional power harmonics
    • IEC 61000-4-15 flicker
  • Control & Alarm Functions
    • 32 programmable set points
    • 5 slots for plug-in I/O modules
    • Up to three modules of 32-channel digital inputs
    • Up to four 48 relay outputs
    • Up to four combined 4-channel analog input/output modules (4AI and 4AO per module)
    • Up to two 8-channel fast (1 ms) analog input modules
  • Communication
    • Three independent serial communication ports (RS232 & RS422/485)
    • Infrared port
    • Built-in modem
    • Ethernet
    • USB port
    • Protocols: Modbus RTU & ASCII, DNP 3.0, TCP/IP
    • Optional IEC 61850 protocol


Remote Display Module


Multi-Window Display Module

ezPAC SA300 Modular Design

The unique modular design of the ezPAC™ SA300 ensures its adaptation to the changing needs of today and tomorrow, through a selection of numerous plug-in options for multiple customer applications.

Digital Inputs Relay Outputs Mixed Analog Input/Output Fast Analog Output


Digital Inputs


Relay Outputs


Mixed Analog


Fast Analog

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