Analog 4-20 mA Module

Analog I/O 4-20 mA Module


Discontinued: No new product for sale. More Info

The analog 4-20mA I/O module provides two 24-bit inputs and two 16-bit outputs. The I/O modules offer 2500 V r.m.s. isolation, with a wide operating temperature range and Class I Division 2 hazardous location rating, making them ideal for demanding industrial installations.

Connect them to the wireless I/O radios for point-to-point wire replacement applications, or to the RS485 I/O Extension module to add I/O to a Modbus network.


Used With:

Wireless I/O Radio Kit

Multi-Point Wireless I/O Radio Kit

Modbus RS485 I/O System

Features and Benefits

  • Easy to use: No software configuration needed
  • Easy to install: Mounts onto a 35 mm DIN rail without any tools
  • Failsafe: User can defines how outputs are failed over when RF or I/O communication is ever lost
  • Number of Inputs: 2 (24-bit Resolution)
  • Number of Outputs: 2 (16-bit Resolution)
  • Isolation Voltage: 2500 V r.m.s.
  • Accuracy: < 0.28 % of Full Scale
  • FailSafe Modes: Last known value (Default) or Any value on scale


Hardware & System



DIN Rail Mounting Compatibility

35 mm x 7.5 mm DIN Rail

I/O Module Slave ID Selection

16-Position rotary switch

Built-In Mounting Hardware

Spring-loaded clip-on system

Wire Gauge

Solid / Stranded (AWG) 28-12 gauge

Wire Rating

UL: 300 V RMS, 80 °C and 300 V, 105 °C

CSA: 300 V RMS, 105 °C


2-Year limited

²When using more than a 5-Module Combination per Radio, use the Power Budget Calculator to determine maximum I/O Module capacity.

Analog 4-20 mA



Number of Inputs

2 (24-bit Resolution)

Number of Outputs

2 (16-bit Resolution)

Isolation Voltage

2500 V r.m.s.

Signal Range

4 to 20 mA


< 0.28 % of Full Scale

Internal Loop Power

+13.5 VDC

FailSafe Modes

Last known value (Default) or Any value on scale³

AI Input Impedance (loop)

128 Ohm

AO Terminal Voltage Range

10 VDC Min. / 31.5 VDC Max.

³Requires Advanced User Interface to set a specific value on Analog I/O Module.




Power Consumption

Typical: 50 mA / Max: 75 mA @12 VDC

Packaging Dimensions (WxHxD)

4.8 x 5.1 x 2.8 in / 123 x 129 x 72 mm

Net Dimensions

0.7 x 3.9 x 4.5 in / 17.5 x 99 x 114 mm

Packaging Weight

Single: 0.5 lbs / 227 g

Double: 0.8 lbs / 363 g

Net Weight (Single)

0.3 lbs / 136 g

Safety & Compliance



Operational Temperature

-40 °C to 85 °C / -40 °F to 185 °F

Storage Temperature

-20 °C to 85 °C / -4 °F to 185 °F


0 to 99 %, Non-condensing

Degree of Protection / Housing Type

IP20 / Plastic

Hazardous Locations Classifications

UL Class I; Division 2 (Zone 2), Pending


Declaration of Conformity (RoHS/CE) 108.25 kB Last Modified 07/24/2018