ioThinx 4500 Series (45MR) Modules

I/O and power modules for the ioThinx 4500 Series

Features and Benefits

I/O modules include DI/Os, AI/Os, relays, and other I/O types
Power modules for system power inputs and field power inputs
Easy tool-free installation and removal
Built-in LED indicators for IO channels
Wide operating temperature range: -40 to 75°C (-40 to 167°F)
Class I Division 2 and ATEX Zone 2 certifications

Certifications

Introduction

Moxa’s ioThinx 4500 Series (45MR) Modules are available with DI/Os, AIs, relays, RTDs, and other I/O types, giving users a wide variety of options to choose from and allowing them to select the I/O combination that best fits their target application. With its unique mechanical design, hardware installation and removal can be done easily without tools, greatly reducing the amount of time required to set up and replace the modules.

Easy Tool-Free Installation and Removal

The ioThinx 4500 Series has a unique mechanical design that reduces the amount of time required for installation and removal. In fact, screwdrivers and other tools are not required for any part of the hardware installation, including mounting the device on a DIN-rail, as well as connecting the wiring for both communication and I/O signal acquisition. Furthermore, no tools are required to remove the ioThinx from a DIN-rail. Removing all of the modules from a DIN-rail is also easy using the latch and release tab.

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Digital Input Channels

45MR-1600: 16
45MR-1601: 16
45MR-2606: 8
Digital Output Channels

45MR-2600: 16
45MR-2601: 16
45MR-2606: 8
Analog Input Channels

45MR-3800: 8
45MR-3810: 8
Relay Channels

45MR-2404: 4
Analog Output Channels

45MR-4420: 4
RTD Channels

45MR-6600: 6
Thermocouple Channels

45MR-6810: 8
System Power Input Channels

45MR-7210: 1
Field Power Input Channels

45MR-7210: 1
Field Potential Output Channels

45MR-7820: 8
Isolation

3k VDC or 2k Vrms

Connector

Spring-type Euroblock terminal
Sensor Type

Dry contact
Wet contact (NPN or PNP)
I/O Mode

45MR-1600/1601: DI or event counter (only supports the first 4 channels)
45MR-2606: DI or event counter (only supports the first 2 channels)
Dry Contact

On: short to FP+/FP-
Off: open
Wet Contact (DI to FP-)

On: 10 to 30 VDC
Off: 0 to 3 VDC
Wet Contact (DI to FP+)

On: 10 to 30 VDC
Off: 0 to 3 VDC
Counter Frequency

1 kHz
Digital Filtering Time Interval

Software configurable

Connector

Spring-type Euroblock terminal
I/O Type

45MR-2600: Sink
45MR-2601/2606: Source
I/O Mode

45MR-2600/2601: DO or pulse output (only supports the first 4 channels)
45MR-2606: DO or pulse output (only supports the first 2 channels)
External Power

12/24 VDC
Pulse Output Frequency

1 kHz
Over-voltage Protection

45 VDC
Over-temperature Shutdown

175°C (typical), 150°C (min.)
Current Rating

500 mA per channel

Connector

Spring-type Euroblock terminal
Type

Form A (N.O.) power relay
I/O Mode

DO
Contact Current Rating

Resistive load: 2 A @ 30 VDC
Resistive load: 2 A @ 250 VAC
Relay On/Off Time

10 ms (max.)
Initial Insulation Resistance

1000 mega-ohms (min.) @ 500 VDC
Mechanical Endurance

5,000,000 operations
Electrical Endurance

45MR-2404 Models: 50,000 operations @ 2 A resistive load
Contact Resistance

100 milli-ohms (max.)

Connector

Spring-type Euroblock terminal
I/O Mode

Voltage/Current
I/O Type

Differential
Converter Resolution

16 bits
Input Range

45MR-3800: 0 to 20 mA, 4 to 20 mA, 4 to 20 mA (burnout detection)
45MR-3810: 0 to 10 VDC or -10 to 10 VDC
Over-Voltage Protection

-25 to +30 VDC (power on)
-35 to +35 VDC (power off)
Accuracy

±0.1% FSR @ 25°C
±0.3% FSR @ -40 and 75°C
Sampling Rate

All channels: 100 samples/sec
Per channel: 12.5 samples/sec
Single channel: 100 samples/sec
Input Impedance

45MR-3800: 120 ohms
45MR-3810: 10 mega-ohms (min.)

Connector

Spring-type Euroblock terminal
I/O Mode

Voltage/Current
Output Range

0 to 10 VDC
0 to 20 mA
4 to 20 mA
Converter Resolution

12-bit
Accuracy

±0.1% FSR @ 25°C
±0.3% FSR @ -40 to 75°C
Load (Current Mode)

Internal power: 500 ohms (max.)
Load (Voltage Mode)

1000 ohms (min.)

Connector

Spring-type Euroblock terminal
Sensor Type

PT50, PT100, PT200, PT500 (-200 to 850°C)
PT1000 (-200 to 350°C)
JPT100, JPT200, JPT500 (-200 to 640°C)
JPT1000 (-200 to 350°C)
NI100, NI200, NI500 (-60 to 250°C)
NI1000 (-60 to 150°C)
NI120 (-80 to 260°C)
Resistance Type

310, 620, 1250, and 2200 ohms
Input Connection

2- or 3-wire
Sampling Rate

All channels: 12 samples/sec
Per channel: 2 samples/sec
Converter Resolution

0.1°C or 0.1 ohms
Accuracy

±0.1% FSR @ 25°C
±0.3% FSR @ -40 and 75°C
Input Impedance

625 kilo-ohms (min.)

Connector

Spring-type Euroblock terminal
Sensor Type

J, K, T, E, R, S, B, N
Millivolt Type

±19.532 mV
±39.062 mV
±78.126 mV
Converter Resolution

16 bits
Millivolt Accuracy

±0.1% FSR @ 25°C
±0.3% FSR @ -40 and 75°C
Sampling Rate

All channels: 12 samples/sec
Per channel: 1.5 samples/sec
Input Impedance

1 mega-ohms (min.)

Power Connector

Spring-type Euroblock terminal
No. of Power Inputs

1
Input Voltage

12 to 48 VDC
Output Current

1 A (max.)
Power Consumption

800 mA @ 12 VDC
Over-Voltage Protection

55 VDC
Over-Current Protection

1 A @ 25°C

Power Connector

Spring-type Euroblock terminal
No. of Power Inputs

1
Input Voltage

12/24 VDC
Output Current

2 A (max.)
Over-current Protection

2.5 A @ 25°C
Over-voltage Protection

33 VDC
Potential Output Mode

45MR-7820: 0 VDC, 12/24 VDC

System Power

45MR-1600: 59.4 mA @ 3.3 VDC
45MR-1601: 59.4 mA @ 3.3 VDC
45MR-2404: 44 mA @ 3.3 VDC
45MR-2600: 57.2 mA @ 3.3 VDC
45MR-2601: 63.8 mA @ 3.3 VDC
45MR-2606: 62.7 mA @ 3.3 VDC
45MR-3800: 197.3 mA @ 3.3 VDC
45MR-3810: 187 mA @ 3.3 VDC
45MR-4420: 44 mA @ 3.3 VDC
45MR-6600: 131.7 mA @ 3.3 VDC
45MR-6810: 148.1 mA @ 3.3 VDC
45MR-7210: 45m A @ 24 VDC
Field Power

45MR-1600: 19.3 mA @ 12 VDC, 25.3 mA @ 24 VDC
45MR-1601: 19.3 mA @ 12 VDC, 25.3 mA @ 24 VDC
45MR-2404: 31.2 mA @ 12 VDC, 24.7 mA @ 24 VDC
45MR-2600: 10.8 mA @ 12 VDC, 10.8 mA @ 24 VDC
45MR-2601: 10.8 mA @ 12 VDC, 10.8 mA @ 24 VDC
45MR-2606: 15.4 mA @ 12 VDC, 18.7 mA @ 24 VDC
45MR-4420: 220.2 mA @ 12 VDC, 122.3 mA @ 24 VDC

Housing

Plastic
Dimensions

19.5 x 99 x 60.5 mm (0.77 x 3.90 x 2.38 in)
Weight

45MR-1600: 77 g (0.17 lb)
45MR-1601: 77.6 g (0.171 lb)
45MR-2404: 88.4 g (0.195 lb)
45MR-2600: 77.4 g (0.171 lb)
45MR-2601: 77 g (0.17 lb)
45MR-2606: 77.4 g (0.171 lb)
45MR-3800: 79.8 g (0.176 lb)
45MR-3810: 79 g (0.175 lb)
45MR-4420: 79 g (0.175 lb)
45MR-6600: 78.7 g (0.174 lb)
45MR-6810: 78.4 g (0.173 lb)
45MR-7210: 77 g (0.17 lb)
45MR-7820: 73.6 g (0.163 lb)
Installation

DIN-rail mounting
Strip Length

I/O cable, 9 to 10 mm
Wiring

45MR-2404: 18 AWG
45MR-7210: 12 to 18 AWG
45MR-2600/45MR-2601/45MR-2606: 18 to 22 AWG
All Other 45MR Models: 18 to 24 AWG

Operating Temperature

Standard Models: -20 to 60°C (-4 to 140°F)
Wide Temp. Models: -40 to 75°C (-40 to 167°F)
Storage Temperature (package included)

-40 to 85°C (-40 to 185°F)
Ambient Relative Humidity

5 to 95% (non-condensing) The relays of the 45MR-2404 may malfunction when operating in high condensation environments below 0°C.
Altitude

Up to 4000 meters Please contact Moxa if you require products guaranteed to function properly at higher altitudes.

EMC

EN 55032/35
EMI

CISPR 32, FCC Part 15B Class A
EMS

IEC 61000-4-2 ESD: Contact: 4 kV; Air: 8 kV
IEC 61000-4-3 RS: 80 MHz to 1 GHz: 3 V/m
IEC 61000-4-4 EFT: Power: 1 kV; Signal: 0.5 kV
IEC 61000-4-5 Surge: Power: 2 kV; Signal: 1 kV
IEC 61000-4-6 CS: 3 V
IEC 61000-4-8 PFMF
Shock

IEC 60068-2-27
Vibration

IEC 60068-2-6
Safety

UL 61010-2-201
Hazardous Locations

ATEX
Class I Division 2

Green Product

RoHS, CRoHS, WEEE

Time

45MR-1600: 661,247 hrs
45MR-1601: 661,247 hrs
45MR-2404: 1,955,805 hrs
45MR-2600: 647,334 hrs
45MR-2601: 660,179 hrs
45MR-2606: 638,652 hrs
45MR-3800: 2,085,426 hrs
45MR-3810: 2,478,459 hrs
45MR-4420: 1,450,453 hrs
45MR-6600: 2,291,755 hrs
45MR-6810: 1,649,892 hrs
45MR-7210: 2,550,077 hrs
45MR-7820: 256,886,914 hrs
Standards

Telcordia Standard SR-332

Warranty Period

All models except 45MR-2404: 5 years
45MR-2404: 2 years Because of the limited lifetime of power relays, products that use this component are covered by a 2-year warranty.
Details

See www.moxa.com/warranty

Download datasheet

Software, Firmware, and Drivers

Name	Type	Checksum	Version	Operating System	Release Date
IOxpress Configuration Utility Download 5.0 MB	Utility	E2E5976B0190520B80F92273B23192CAFE0F89C7B17F624257A025EB5E73C64E543565AA9D413FCB69ABBDD019C5B0D866CB6B9A2F117E3C858107CAFECAEEFD SHA-512	v2.4.0	Windows 10 Windows 7 Windows 8 Windows Server 2003 Windows Server 2008 Windows Server 2012	Jun 04, 2019 Jun 04, 2019 Release notes

Support Documents

Name	Type	Version	Release Date
Datasheet for ioThinx 4500 Series (45MR) Modules Download 3.5 MB	Datasheet	v5.2	Apr 23, 2026 Apr 23, 2026
FOSS Statement for ioThinx 45MR Series, ioThinx 45ML Series Download 69.7 KB	Declaration	v1.0	Dec 19, 2024 Dec 19, 2024
QIG for ioThinx 4500 Series (45MR) Modules Download 1.8 MB	QIG	v1.7	May 15, 2024 May 15, 2024
Declaration of Conformity for 45MR-7210 Download 293.5 KB	Declaration	v1.0	Jan 08, 2024 Jan 08, 2024
Declaration of Conformity for ioThinx 4510/4533 (with 45MR/45ML Modules) Download 310.5 KB	Declaration	v1.0	Jan 08, 2024 Jan 08, 2024
Manual for ioThinx 4500 Series (45MR) Modules Download 8.3 MB	Manual	v3.1	Sep 22, 2022 Sep 22, 2022
2D CAD for ioThinx 4500 Series (45MR) Modules (45MR_7210) Download 427.0 KB	2D CAD		Apr 08, 2019 Apr 08, 2019
2D CAD for ioThinx 4500 Series (45MR) Modules Download 410.2 KB	2D CAD		Nov 28, 2018 Nov 28, 2018

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Available Models (26)

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	Compare 45MR-1600	Compare 45MR-1600-T	Compare 45MR-1601	Compare 45MR-1601-T
Input/Output Interface	16 x DI	16 x DI	16 x DI	16 x DI
Digital Input	PNP 12/24VDC	PNP 12/24VDC	NPN 12/24 VDC	NPN 12/24 VDC
Digital Output	–	–	–	–
Relay	–	–	–	–
Analog Input Type	–	–	–	–
Analog Output Type	–	–	–	–
Power	–	–	–	–
Operating Temp.	-20 to 60°C	-40 to 75°C	-20 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare 45MR-2404	Compare 45MR-2404-T	Compare 45MR-2600	Compare 45MR-2600-T
Input/Output Interface	4 x Relay	4 x Relay	16 x DO	16 x DO
Digital Input	–	–	–	–
Digital Output	–	–	Sink 12/24 VDC	Sink 12/24 VDC
Relay	Form A 30 VDC/250 VAC, 2 A	Form A 30 VDC/250 VAC, 2 A	–	–
Analog Input Type	–	–	–	–
Analog Output Type	–	–	–	–
Power	–	–	–	–
Operating Temp.	-20 to 60°C	-40 to 75°C	-20 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare 45MR-2601	Compare 45MR-2601-T	Compare 45MR-2606	Compare 45MR-2606-T
Input/Output Interface	16 x DO	16 x DO	8 x DI, 8 x DO	8 x DI, 8 x DO
Digital Input	–	–	PNP 12/24VDC	PNP 12/24VDC
Digital Output	Source 12/24 VDC	Source 12/24 VDC	Source 12/24 VDC	Source 12/24 VDC
Relay	–	–	–	–
Analog Input Type	–	–	–	–
Analog Output Type	–	–	–	–
Power	–	–	–	–
Operating Temp.	-20 to 60°C	-40 to 75°C	-20 to 60°C	-40 to 75°C
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	Compare 45MR-3800	Compare 45MR-3800-T	Compare 45MR-3810	Compare 45MR-3810-T
Input/Output Interface	8 x AI	8 x AI	8 x AI	8 x AI
Digital Input	–	–	–	–
Digital Output	–	–	–	–
Relay	–	–	–	–
Analog Input Type	0 to 20 mA 4 to 20 mA	0 to 20 mA 4 to 20 mA	-10 to 10 VDC 0 to 10 VDC	-10 to 10 VDC 0 to 10 VDC
Analog Output Type	–	–	–	–
Power	–	–	–	–
Operating Temp.	-20 to 60°C	-40 to 75°C	-20 to 60°C	-40 to 75°C
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	Compare 45MR-4420	Compare 45MR-4420-T	Compare 45MR-6600	Compare 45MR-6600-T
Input/Output Interface	4 x AO	4 x AO	6 x RTD	6 x RTD
Digital Input	–	–	–	–
Digital Output	–	–	–	–
Relay	–	–	–	–
Analog Input Type	–	–	RTD	RTD
Analog Output Type	0 to 10 V 0 to 20 mA 4 to 20 mA	0 to 10 V 0 to 20 mA 4 to 20 mA	–	–
Power	–	–	–	–
Operating Temp.	-20 to 60°C	-40 to 75°C	-20 to 60°C	-40 to 75°C
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	Compare 45MR-6810	Compare 45MR-6810-T	Compare 45MR-7210	Compare 45MR-7210-T
Input/Output Interface	8 x TC	8 x TC	1 x system power input 1 x field power input	1 x system power input 1 x field power input
Digital Input	–	–	–	–
Digital Output	–	–	–	–
Relay	–	–	–	–
Analog Input Type	TC	TC	–	–
Analog Output Type	–	–	–	–
Power	–	–	1 x SP+ 1 x SP- 1 x FP+ 1 x FP- 1 x FP GND	1 x SP+ 1 x SP- 1 x FP+ 1 x FP- 1 x FP GND
Operating Temp.	-20 to 60°C	-40 to 75°C	-20 to 60°C	-40 to 75°C
	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag	Add to Quote View Bag

	Compare 45MR-7820	Compare 45MR-7820-T
Input/Output Interface	8 x field power output	8 x field power output
Digital Input	–	–
Digital Output	–	–
Relay	–	–
Analog Input Type	–	–
Analog Output Type	–	–
Power	8 x FP+ 8 x FP-	8 x FP+ 8 x FP-
Operating Temp.	-20 to 60°C	-40 to 75°C
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