Top 20 Best Selling IO Modules Controls & Indicators (2019)




The SNAP-PAC-RCK4 mounts one SNAP PAC brain or on-the-rack controller and up to 4 analog, digital, and serial SNAP I/O modules. Together, the rack, I/O, and processor form an I/O unit that provides distributed control in a SNAP PAC System. This I/O unit c ... more info

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The SNAP-ODC-32-SRC digital (discrete) output module provides 32 digital output channels in a sinking configuration. This module is ideal for OEMs and others with applications with high point counts, or for those requiring a large number of digital output ... more info


G4 DC output modules are used to control or switch DC loads. Each module provides up to 4000 volts of optical isolation (transient) between field devices and control logic. Typical applications for DC output modules include switching loads such as DC rela ... more info



Opto 22's G4 DC input modules are used to detect on/off DC voltage levels. Each module provides up to 4000 volts (transient) of optical isolation between field inputs and the logic output of the circuit. Typical applications for DC input modules include s ... more info

The G4ODC5R is a reed relay, low-contact-resistance DC output. It is a single-pole, single-throw, normally open mechanical relay (Form A, SPST-NO). It was designed for a low-voltage DC load that is purely resistive (no inrush current). Typical application ... more info



The SNAP-AIMA-4 provides four channels of -20 mA to +20 mA analog current input. The module does not supply loop excitation current. Although the four channels are not isolated from each other, the module is transformer isolated and optically isolated fro ... more info

The IDC5B can act as either a DC or AC input, accepting 4-16 VDC or VAC. Input modules are used for sensing ON/OFF voltage levels. This module is a fast-switching input module for signals produced by photoelectric switches or TTL level devices. Each modul ... more info



The G4ODC5R5 is a reed relay, low-contact-resistance DC output. It is a single-pole, single-throw, normally closed mechanical relay (Form A, SPST-NC). It was designed for a low-voltage DC load that is purely resistive (no inrush current). Typical applicat ... more info


The G4D32EB2 is a physically identical Ethernet version of the legacy G4D32RS mistic digital rack. It includes a G4EB2 brain, a G4 module mounting rack, a G4REG onboard regulator, and a metal cover. The G4D32EB2 provides physical compatibility, I/O module ... more info


The SNAP-IDC5 provides four channels of 10-32 volts DC or AC digital (discrete) input. Each channel senses the on/off status for DC voltages from sources such as proximity switches, push buttons, or auxiliary contacts. The module has removable top-mounted ... more info

The SNAP-IDC5-FAST-A provides four channels of high-speed 18-32 VDC digital (discrete) input. Each channel senses the on/off status for DC voltages from sources such as proximity switches, push buttons, or auxiliary contacts. The module has removable top- ... more info





The G4PB4 I/O mounting rack compactly accommodates up to four G4 I/O modules in applications where only a few I/O points are needed. Insert and remove modules easily and quickly without disturbing field wiring. Modules are secured to the mounting rack wit ... more info


The SNAP-OMR6-C mechanical power relay output module offers four channels of switching for up to 250 VAC or 30 VDC, 6 amp loads. Each of the four mechanical contacts can be used as normally open or normally closed. Mechanical power relay output modules ha ... more info


G4 DC output modules are used to control or switch DC loads. Each module provides up to 4000 volts of optical isolation (transient) between field devices and control logic. Typical applications for DC output modules include switching loads such as DC rela ... more info



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The SNAP-PAC-RCK16 mounts one SNAP PAC brain or on-the-rack controller and up to 16 analog, digital, and serial SNAP I/O modules. Together, the rack, I/O, and processor form an I/O unit that provides distributed control in a SNAP PAC System. This I/O unit ... more info



The SNAP-ODC5SRC provides four channels of 5-60 VDC digital (discrete) output in a source configuration, each channel switching a separate DC load. The module features a removable top-mounted connector for easy access to field wiring and channel-specific ... more info

The SNAP-SCM-485-422 provides two 2-wire RS-485 serial communication ports for two channels of high-speed, isolated serial data, or one 4-wire serial communication port for a single channel. Used with a brain or R-series controller, the module connects se ... more info

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