Product Catalog   (435) 750-5999
X-19s 16 Relay, 16 Digital and 4 Analog Input Expansion Module

The X-19s expansion module has 16 relays, 16 digital inputs, and 4 analog inputs which can be controlled and monitored using an X-400 or X-600M controller.


Power Requirements

  • Voltage: 9-28 VDC (24V recommended)*
  • Max Current: See table below for typical values at 25°C.
Power Supply All Relays OFF All Relays ON
9 VDC 20 mA 650 mA
12 VDC 16 mA 490 mA
24 VDC 12 mA 250 mA

Relay Contacts

  • Number of Relays: 16
  • Max Voltage: 30VDC, 30VAC
  • Max Current: 2A
  • Contact Type: SPST
  • Load Type: General Purpose
  • Contact Resistance: < 100 milliohms initial
  • Contact Material: AgNi
  • Electrical Life: 100K operations (Min)
  • Mechanical Life: 5M cycles (Min)
  • Environmental Rating: Over voltage Category II, Pollution Degree 2
  • Relay Modes: ON/OFF or Pulsed
  • Pulse Timer Duration: 0.1 to 86,400 Seconds (1-day)

Digital Inputs

  • Number of Inputs: 16
  • Type: Optically-Isolated
  • Voltage Range: 4-28VDC
  • Vin Hi (Min): 4V
  • Vin LO (Max): 1.5V
  • Current: 950uA @ 4V, 8.5mA @ 26V
  • Minimum Hold Time: 5ms
  • Input Isolation: 1500V
  • Input Functions: Asynchronous status of the digital inputs
  • Number of Counter Inputs: 16
  • Maximum Count: 32-bit
  • Max Count Rate: 100 Hz
  • Edge Trigger: Rising, Falling or Both

Analog Inputs

  • Number of Inputs: 4
  • Type: Single-ended channels
  • Input Range: 0-5VDC
  • Resolution: 12-bit
  • Reference: 5.000V ±.04%, 3ppm, 30mA MAX


  • Expansion Connector: Ribbon cable, 2x5-position, polarized 0.100" pitch
  • Relays & Inputs: PCB terminal block, screw connection, 3.81 mm terminal spacing, Removable. For 16-28 AWG wire.

LED Indicators

  • Number of LEDs: 33
    • Power on
    • Relays 1-16
    • Digital Inputs 1-16


  • Size:
    • 8.60in (218.44mm) wide
    • 4.95in (125.73mm) tall
    • 1.96in (49.78mm) deep
  • Weight: 12 oz (342 g)
  • Enclosure Material: PVC
  • Enclosure Flame Rating: UL94 V1


  • Operating Temperature: -40°F to 150°F (-40°C to 65.5°C)
  • Storage Temperature: -40°F to 185°F (-40°C to 85°C)
  • Humidity: 5-95%, non-condensing
  • Altitude: Up to 2,000m
  • Indoor use or NEMA-4 protected location

Electromagnetic Compliance

  • IEC CISPR 22, CISPR 24
  • FCC 47CFR15 (Class B)
  • EN55024 ITE Immunity (2010)
  • EN55022 Emissions (2010)

Product Safety Compliance

  • IEC 61010-1
CE listed RoHS compliant Made in the USA

* This device is sold as a component and does not include a power supply. The X-18s, X-19s, and X-20s expansion modules are not powered through the expansion bus cable and require separate wiring to the power supply. They may share the same power supply that is used to power the X-400 or X-600M controller or they may use separate power supplies. Please use the same power supply voltage for all devices on the expansion bus (24V recommended).

More Information:


Where to Buy

Click "Buy Online" to view part numbers and pricing. X-19s is available in the USA and internationally, and can be purchased either from us or an Authorized Distributor.



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