I/O Controllers

 I/O Controllers
I/O Controllers are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many input/output controller manufacturers including Banner Engineering, Industruino, KUNBUS, Omron, Phoenix Contact, Schneider Electric & more.
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Please view our large selection of input/output controllers below.
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Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS ECAD Model Type Number of Outputs Analogue / Digital Output Type Mounting Style Size Number of Inputs Display Type Series
Schneider Electric I/O Controllers Zelio SR3 10 I-O 24VDC, relay out 5In Stock
$322.61
Min.: 1
Mult.: 1
Modular Smart Relay 10 Output Digital Relay DIN Rail Mount 10 Input Clock SR3
Schneider Electric I/O Controllers ZELIO SR3 26 I-O 24VAC 3In Stock
$544.54
Min.: 1
Mult.: 1
Modular Smart Relay 24 Output Digital Relay DIN Rail Mount 24 Input Clock SR3
Schneider Electric I/O Controllers Zelio SR3 26 I-O 24VDC, relay out 3In Stock
4Expected 17/11/2026
$544.54
Min.: 1
Mult.: 1
Compact Smart Relay 10 Output Relay Panel Mount 6 Input LCD Backlight SR3
Schneider Electric I/O Controllers Zelio SR3 expansion Module 10 I-O 24VAC 7In Stock
$144.15
Min.: 1
Mult.: 1
I/O Module 1 Output Analog DIN Rail Mount 90 mm x 59.5 mm x 3.5 mm 1 Input None SR3
Schneider Electric I/O Controllers Zelio SR3 expansion Module 14 I-O 24VAC 4In Stock
$187.62
Min.: 1
Mult.: 1
SR3
Schneider Electric I/O Controllers ZELIO SR3 ANALOG OUTPUT 24VDC 1In Stock
$266.55
Min.: 1
Mult.: 1
Extension Module 2 Output Relay Panel Mount 2 Input None SR3
Schneider Electric I/O Controllers M171 OPT. DISPLAY 14 IOS, 100-240 VAC 3In Stock
$206.83
$202.87
$201.34
Min.: 1
Mult.: 1
Schneider Electric I/O Controllers M171 OPT. DISPLAY 22 IOS, MODBUS 4In Stock
$232.80
Min.: 1
Mult.: 1
TM171
DFRobot I/O Controllers EDGE101 Industrial ESP32 IoT Programmable Controller with 4G CAT1 (RS485, CAN, Ethernet)
9Expected 09/11/2026
$67.50
Min.: 1
Mult.: 1
IoT Programmable Controller Digital Digital 136.7 mm x 76 mm x 31 mm
Omron Automation and Safety I/O Controllers 24VDC .5A 8OUTp ts. Trans PNP 1In Stock
$620.84
Min.: 1
Mult.: 1


Omron Automation and Safety I/O Controllers CN1 I/O Connector GT 1In Stock
$118.22
$112.23
$110.38
Min.: 1
Mult.: 1
Schneider Electric I/O Controllers Zelio SR3 10 I-O 24VAC 2In Stock
$322.61
Min.: 1
Mult.: 1
SR3
Schneider Electric I/O Controllers Zelio SR3 10 I-O 24VDC transistor out 1In Stock
$305.51
Min.: 1
Mult.: 1
Modular Smart Relay 10 Output Digital Relay DIN Rail Mount 10 Input Clock SR3
Schneider Electric I/O Controllers Zelio SR3PACK Mod 26 I-O 100-240VAC 2In Stock
$643.03
Min.: 1
Mult.: 1
SR3
Schneider Electric I/O Controllers Zelio SR3 expansion Module 14 I-O 24VAC 3In Stock
$187.62
Min.: 1
Mult.: 1
SR3
Schneider Electric I/O Controllers ZELIO SR3 14 I-O 12VDC, RELAY OUT 3In Stock
$160.16
Min.: 1
Mult.: 1
SR3
KUNBUS I/O Controllers RevPi MIO
188On Order
$257.92
Min.: 1
Mult.: 1
12 Output Analog, Digital DIN Rail Mount 111 mm x 23 mm x 96 mm 12 Input RevPi MIO
ControlByWeb I/O Controllers X-401 industrial dual relay and input module with browser-based setup, embedded logic builder, Modbus/MQTT/SNMP/REST support, 2 SPDT relays, and 2 optically isolated digital inputs. (standard Ethernet/DC-powered model).
23On Order
$299.99
Min.: 1
Mult.: 1
2 Output Digital Relay DIN Rail Mount 2 Input 400 Series
Banner Engineering I/O Controllers DXMR90 Industrial Controller; Power: 12-30 V dc; Female M12 (D-Code Ethernet); IP65, IP67; Ethernet IP, Modbus TCP, Modbus RTU Client and Profinet
4Expected 11/11/2026
$596.00
Min.: 1
Mult.: 1
DXMR90-X1
DFRobot I/O Controllers Edge101 Industrial ESP32 IoT Programmable Controller (RS485, CAN, Ethernet)
49On Order
$57.50
Min.: 1
Mult.: 1

Industruino I/O Controllers PROTO D21G
2On Order
$85.45
Min.: 1
Mult.: 1
DC
Schneider Electric I/O Controllers M171 OPT. EXPANSION 14 IOS, 100-240VAC
5Expected 27/11/2026
$161.10
$154.10
$152.18
$150.73
Min.: 1
Mult.: 1

Omron Automation and Safety I/O Controllers ANALOG IN, CJ1, 8CH 40Factory Stock Available
$1,841.16
Min.: 1
Mult.: 1
Omron Automation and Safety I/O Controllers Controller Connector Pkg 290Factory Stock Available
$11.74
$11.38
$11.37
Min.: 1
Mult.: 1
Omron Automation and Safety I/O Controllers Out CJ1 DC1224V 8PT NPN 41Factory Stock Available
$484.33
Min.: 1
Mult.: 1