KS121 Expansion Modules

KS121-16DX is an Expansion Module for KS series CPUs, or the MK series HMI/PLC combo units. The KS121-16DX expands the I/O beyond the CPU's native onboard inputs and outputs. The KS series CPUs can accept a maximum of 14 expansion modules while the MK can accept 8 modules. Available modules include Digital Inputs Only with Sinking or Sourcing Input Types. Each expansion module allows for a distributed installation using a standard Ethernet cable from unit to unit.




  • Sinking or Sourcing Configuration
  • 16 Input Points
  • 24VDC
  • I/O is Isolated

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KS121-16DX Expansion Module,
Discrete Inputs
16 N/A Sinking or Sourcing N/A Click here for PDF Spec Sheet Click here to request a Quote. $66.00 view here
Quantity Discounts
1pc. $66.00
10pc. $62.38
25pc. $59.54
50pc. $57.79
100pc. $55.33
Contact Us for Quantities over 100
10 in Stock Add to Cart

IMPORTANT NOTE: When stock status reads "contact us," the lead time could range from 6 to 16 weeks, model dependent. Please contact the factory for more details.

  • Dimensions
  • Wiring
  • Specifications