Advantech ADAM-4068 | 8-Channel Relay Output Module

The Advantech ADAM-4068 provides eight relay output channels in a compact RS-485 remote I/O module. Its relay configuration includes four Form A contacts and four Form C contacts, giving designers flexible options for controlling compatible field devices. The module supports ASCII command and Modbus RTU protocols, allowing it to communicate with PLCs, industrial PCs, SCADA software, and other controllers on industrial RS-485 networks.

For resistive loads, the ADAM-4068 supports contact ratings of 0.5 A at 120 VAC, 0.25 A at 240 VAC, 1 A at 30 VDC, and 0.3 A at 110 VDC. A 500 VAC breakdown voltage and 1 GΩ minimum initial insulation resistance at 500 VDC support reliable switching performance. The module features a 1.6 second system and communication watchdog timer, LED status indicators, plug in terminal blocks, and an industrial operating temperature range of -10 to 70°C.

ADAM-4068 Relay Module Performance Features

  1. Eight Relay Output Channels
    The ADAM-4068 provides eight relay output channels, including four Form A contacts and four Form C contacts, for flexible remote switching configurations.

  2. Compatible AC And DC Load Switching
    The relay contacts support compatible resistive loads up to 0.5 A at 120 VAC, 0.25 A at 240 VAC, 1 A at 30 VDC, and 0.3 A at 110 VDC.

  3. Modbus RTU And ASCII Protocol Compatibility
    The module supports Modbus RTU and ASCII command protocols for integration with RS-485 based control systems, PLCs, and supervisory software.

  4. 500 VAC Breakdown Voltage
    A 500 VAC breakdown voltage provides electrical separation between relay contacts to support reliable use in industrial switching applications.

  5. Fast Typical Relay Response
    Typical relay on time is 3 ms and typical relay off time is 4 ms, providing responsive control of compatible field loads.

  6. System And Communication Watchdog Timers
    The 1.6 second system and communication watchdog timers help support stable operation and help monitor the status of the module and its communications.

  7. Industrial Temperature And Humidity Ratings
    The ADAM-4068 operates from -10 to 70°C with 5 to 95% RH operating humidity, supporting installation in industrial control environments.

ADAM-4068 Relay Output Technical Specifications

SpecificationDetails
Product ModelADAM-4068
Module TypeRelay output module
Relay Output Channels8
Relay Contact Configuration4 Form A and 4 Form C
Supported ProtocolsASCII command and Modbus RTU
Relay Breakdown Voltage500 VAC, 50 or 60 Hz
Contact Rating At 120 VAC0.5 A resistive
Contact Rating At 240 VAC0.25 A resistive
Contact Rating At 30 VDC1 A
Contact Rating At 110 VDC0.3 A
Initial Insulation Resistance1 GΩ minimum at 500 VDC
Typical Relay On Time3 ms
Typical Relay Off Time4 ms
Maximum Operating Speed50 operations per minute at rated load
Power InputUnregulated 10 to 30 VDC
Power Consumption1 W at 24 VDC typical, 1.7 W at 24 VDC maximum
Watchdog TimerSystem and communication, 1.6 seconds
Connectors2 plug in terminal blocks
Wire Size#14 to #28 AWG
LED IndicatorsYes
Operating Temperature-10 to 70°C
Storage Temperature-25 to 85°C
Operating Humidity5 to 95% RH
CertificationsFCC, CE

Suitable Applications For The ADAM-4068 Relay Output Module

The ADAM-4068 is suitable for industrial systems that need high density, remotely managed relay outputs through an RS-485 network. Its eight channel configuration, mixed Form A and Form C contacts, and Modbus RTU support make it a practical option for distributed machine, building, and process control systems.

Suitable applications include:

  • Remote relay and contactor control

  • Industrial alarm and annunciator systems

  • Solenoid valve switching

  • Indicator light and stack light control

  • Machine sequencing and equipment control

  • Building automation control panels

  • PLC and SCADA relay output expansion

  • Pump, fan, and motor control interfaces

  • Process automation switching applications

  • Remote test and measurement control

Additional information

Weight2 lbs

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