Technical Overview

24VDC optocoupler module, 4A, high-side switching, IP20. Features fast µs response and red LED.

Key Features

Solid State Relay (SSR) functionality.
3-wire connection with high-side switching.
Red LED status indicator for quick diagnostics.
Pluggable module for easy replacement and installation.
Compact 15 mm module width, saving control cabinet space.
Wide input voltage range of 15-30 VDC.
IP20 protection rating.
Fast switching times: 15 µs turn-on and 25 µs turn-off.
Dielectric strength of 2.5 kVrms between control and load circuits for isolation.

Technical Specification Matrix

Parameter	Value
Nominal Input Voltage	24 VDC
Input Voltage Range	15 … 30 VDC
Nominal Output Voltage	24 VDC
Output Voltage Range	20 … 30 VDC
Limiting Continuous Current	4 A
Circuit Type	3-wire connection
Switching Type	High-side switching
Protection Type	IP20
Ambient Air Temperature for Operation	-25 … +40 °C
Processing Temperature	-25 … +50 °C
Relative Humidity	5 … 95 % (non-condensing)
Switching Frequency	2.5 kHz
Turn-on Time	15 µs
Turn-off Time	25 µs
Nominal Input Current at UN	14 mA
Input Current Range	7.6 … 15 mA
Leakage Current at Rated Voltage	≤ 2 µA
Dielectric Strength Control/Load Circuit (AC 1min)	2.5 kVrms
Status Indicator	Red LED
Physical Weight (kg)	0.03
Dimensions L x W x H (cm)	8.25 x 1.5 x 5.2

Industrial Applications

1. Industrial Automation Signal Isolation

The WAGO 286-723 optocoupler module is ideal for providing electrical isolation between sensitive control-level signals (e.g., from a PLC's 24VDC digital output) and robust 24VDC field devices (e.g., solenoids, contactors) in industrial automation cabinets.

Problem Solved

Prevents ground loops, voltage spikes, and noise from the load side from damaging delicate PLC output cards, ensuring reliable operation and extended lifespan of control equipment. Its fast switching time (15 µs turn-on, 25 µs turn-off) allows for precise control of rapidly actuated components.

Galvanic isolationPLC interface24VDC controlhigh-side switchingnoise suppressionsignal integritysolenoid valve controlcontactor coil actuation

2. Distributed I/O System Expansion for DC Loads

This compact 15mm wide module can be used in decentralized I/O systems to switch 24VDC loads in tight spaces, particularly where high-side switching is required for safety or wiring standards.

Problem Solved

Enables efficient management of multiple low-power 24VDC loads (up to 4A each) from a central controller by extending I/O capabilities without bulky relays, thus saving valuable cabinet space and simplifying wiring with its pluggable design. Its IP20 rating is suitable for typical control cabinet environments.

Distributed I/O24VDC loadsspace-savingmodular designhigh-side switchingcontrol cabinet integrationterminal block systemscurrent limiting

3. Machine Control System Interfacing (Auxiliary Loads)

In non-safety-rated applications where a machine control system needs to interface with auxiliary 24VDC loads or status indicators while maintaining signal integrity and basic isolation, the 286-723 provides a robust, fast-acting switch.

Problem Solved

Allows the main control system to switch 24VDC devices (e.g., indicator lights, small auxiliary motors, low-power brakes) that might introduce electrical disturbances back into the control circuit. The red LED status indicator provides quick visual diagnostics.

Machine control24VDC auxiliary loadssignal isolationvisual indicationfast responseelectrical noise protectiondiagnosticssystem integration

WAGO 286-723 24VDC 4A Optocoupler Module High-Side

WAGO 286-723 24VDC 4A Optocoupler Module High-Side

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Industrial Automation Signal Isolation

2. Distributed I/O System Expansion for DC Loads

3. Machine Control System Interfacing (Auxiliary Loads)