ComAp MainsPro Solar Protection Relay

ComAp MainsPro Solar Protection Relay


ComAp MainsPro Solar Protection Relay

The ComAp MainsPro solar protection relay is used for grid-tie applications, and provides anti-islanding protection as required by Distribution Network Service Providers for solar over 30 kW. It can be used with any embedded generator systems such as gen sets, co-generation, or renewable energy sources including photovoltaic plants or wind turbines. The ComAp MainsPro grants adjustable voltage, frequency, and loss of mains functions to safeguard the distribution network and the generators.
With ComAp MainsPro, no special knowledge is needed for the installation process and no additional units are required. This makes it an optimal solution for both untrained personnel and professionals. The unit is designed to comply completely with Utilities’ connection requirements and statutory codes, offering a high level of protection and safety when working in parallel to the mains.

This item can be used within our secondary protection units which come as a switchboard ready to connect inverter cabling to. Have a look here for more info.

The ComAp MainsPro complies with IEC 60255, G83, G59/3, UL508, CEI 0-21, IEn NR 005/2012, VDE V 0126-1-1 and VDE-AR-N 4105

ComAp MainsPro Product Features:

  • Flexible supply voltage and measurement range
  • Suited for standard DIN rail installation or door-mount
  • User friendly interface with easy setting (no software tools needed)
  • Simple wiring with removable connectors
  • Remote binary communication
  • Compact design for installation in restricted spaces
  • Lost of Mains function and history track function (Last 5 events history log)
  • Integrated mechanical lock to secure your settings
  • Breaker failure protection
  • Watchdog relay output
  • Increased resolution of frequency protection settings
  • Resistance to frequency jumping

ComAp MainsPro Technical Information:

  • True RMS measurements for more accurate, reliable evaluation of failures
  • Vector Shift and Rate of change of frequency protections are available in a single unit to allow for the best fit for each site
  • Symmetrical components allow for better detection of voltage asymmetry failures
  • Two stage settings of voltage and frequency safeguards cover short and long term disturbances with fitting priority
  • Free assignment of five relay outputs allows for a large range of signaling and trip methods
  • Four binary switches to remotely alter unit operation
  • Adjustable time delay of Automatic fault reset to avoid need for personnel on-site
  • Universal power supply of 8 – 40 VDC, 85 – 265 VAC, and 110 – 370 VDC
  • Unit is independent on application due to the optional voltage range of 120/230/400 VAC with over-range to 156/290/520 VAC
  • Supports three-phase and one-phase applications
  • Last trip is recorded to provide evidence of trip cause


More solar protection relay options can be seen here.