Mercury™ MR52-S3 Controller


** Purchase of CredoID Mini is required if not bundled **

Due to Supply Chain Disruption, Please consider 15-60 days lead time depends on the quantity in your order and our distribution share from the Manufacturer.  Exceptional refund policy: 3% Cancellation Fee applies to all Order or Pre-Order purchases.

The MR52 is a card reader interface panel with on-board flexibility to connect to a wide range of security devices. This economical, high-performance device is easy to install and provides all the necessary I/O for controlling two doors with auxiliary point control and monitoring. Each unit can connect two card readers, eight general purpose input monitor points and six control relays to any Mercury EP series intelligent controller.

Part# MR52-S3

Key Benefits:

  • Added Security with OSDP secure channel readers
  • Provides affordable flexibility
  • Reliably supports a wide variety of sensors and control technologies
  • Offers easy installation


  • 2 Reader Port (supports up to 4 OSDP readers)
  • Card/Keypad Data: OSDP, Clock/Data, Data–1/Data–0, RS-485 or F/2F
  • Control of 2 Doors
  • 10 Inputs: 8 General Purpose, 2 Dedicated Tamper and Power Monitor
  • 6 Relays: NO 5A @ 30VDC or NC 3A @ 30VDC
  • Dimensions: 6.0” W x 8.0” L x 1.0” H (152mm W x 203mm L x 25mm H)
  • Operational Temperature: 0 – 70 deg C

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