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$57.75 (USA and Canada only)

Availability: In stock
G4 DC Input - DC voltage, self-powered, normally open

Production Specification

G4 I/O family

The G4IDC5-SW module provides one isolated channel of contact status input, sensing switch closure. The module supplies 15 volts of power to an external dry contact switch.

Each user-supplied switch is connected with two wires. Because the module includes power for the switch, this module is particularly cost-effective when labor costs for wiring external power are high.

Typical applications for the G4IDC5-SW include sensing contact closure from sources such as proximity switches, limit switches, selector switches, push buttons, photoelectric switches, and TTL-compatible devices.

Opto 22’s G4 DC input modules provide up to 4000 volts (transient) of optical isolation between field inputs and the logic output of the circuit.

CAUTION: G4IDC5-SW and G4IDC5-SWNC inputs are not intended to be used with contacts that are connected to any external user-supplied voltage or current.

Field Side Ratings

Open Circuit Voltage (Switch Open)

11 VDC min., 13 VDC typical, 15 VDC max.

Short Circuit Current (Switch Closed)

6 milliamps nominal

Minimum Off Resistance

≥20 K ohms

Maximum Allowable On Resistance
(Wire + Contact Resistance)

500 ohms

Logic Side Ratings

Logic Output Voltage for G4IDC5-SW
(normally open)

<0.5 V max. (switch closed; LED on) @ 2 mA sinking
2.7 V min. (switch open; LED off) @ 0.4 mA sourcing

Logic Output Voltage for G4IDC5-SWNC
(normally closed)

<0.5 V max. (switch open; LED on) @ 2 mA sinking
2.7 V min. (switch closed; LED off) @ 0.4 mA sourcing

Maximum Operating Common Mode
Voltage (Field Term to Logic Connector)

250 V

Power Requirements:

5 VDC (±0.25) @ 25 mA nom.

Module Ratings

Number of Channels Per Module


Turn-on Time

8 msec typical

Turn-off Time

8 msec typical

Input-to-output Isolation (transient)

4000 V AC/DC


0 °C to 70 °C, operating
-30 °C to 85 °C, storage

Agency Approvals RoHS (G4IDC5-SW); CE, RoHS, UKCA (G4IDC5-SWNC)

G4 Digital DC Input Modules Data Sheet

Opto 22’s G4 DC input modules are used to detect on/off DC voltage levels.

G4 Digital I/O Data Book

The G4 Digital I/O Data Book provides complete details on every G4 digital I/O product component, including adapter cards, I/O modules, and mounting racks.

Opto 22 RoHS 3 Statement of Compliance - Restriction of Hazardous Substances

This document is a statement of compliance with the EU Directive 2015/863/EU, Restriction of Hazardous Substances (RoHS 3). This document lists Opto 22 products that comply with the substance restrictions of the RoHS 3 directive.

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