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Relay Contact Sensor

Efficient Control and Monitoring of Critical Systems with the Didactum Relay Contact Sensor

The Didactum Relay Contact Sensor is a versatile and powerful tool for controlling and monitoring a wide range of devices and systems in server rooms as well as in critical corporate environments.

Thanks to its ability to function as a switchable relay output, it opens up numerous possibilities for automation, security management, and efficient energy management. The following explains in detail how the Didactum Relay Contact Sensor can be used in modern IT and corporate environments, how installation is carried out, and what advantages and application examples result from its use.

The Didactum Relay Contact Sensor can be connected to any Didactum unit with 12V relay outputs and is compatible with a wide range of devices that require a potential-free contact (normally open or normally closed). With a switching capacity of up to 5A, the sensor is ideal for controlling magnetic and bolt locks, electromagnets, sirens, light sources, heaters, air conditioners, and many other electrical consumers.

Integration into existing monitoring and building technology systems is particularly simple and flexible thanks to open interfaces and support from Didactum monitoring solutions.

Monitoring and Control in the Server Room

Reliable operation of all systems is of central importance in server rooms. The Didactum Relay Contact Sensor enables automated and situation-dependent control of critical infrastructure such as air conditioning units, fans, lighting, or access control systems. For example, if a defined temperature is exceeded, the air conditioning can be switched on automatically, or in the event of smoke development, an alarm can be triggered and the emergency lighting activated. Remote control of server room doors or server cabinets—for example, to grant access to authorized personnel—is also easily possible via connection to magnetic or bolt locks.

Another area of application is integration into alarm systems: If a break-in or unauthorized access is detected, the relay contact sensor can immediately activate sirens or turn on warning lights. These functions can be centrally controlled and monitored via the Didactum monitoring system—even remotely.

Use in Critical Corporate Areas

Outside the server room, the Didactum Relay Contact Sensor also offers numerous application possibilities. In industrial automation, for example, it can be used to switch machines, conveyor belts, or valves on and off in a targeted manner, thus efficiently controlling production processes. In building technology, the sensor enables intelligent control of lighting systems, heaters, or air conditioners—based on schedules, presence detectors, or environmental sensors.

In access control, the Didactum Relay Contact Sensor is a central link between access control systems and door locks. This allows access to sensitive areas such as data centers, laboratories, or technical rooms to be reliably regulated. The connection to the Didactum monitoring system allows logging and central management of all switching operations and access events.

In security management, the sensor can be used to control alarm systems, emergency lighting, or evacuation equipment. When a fire or burglary alarm is triggered, the corresponding devices are automatically activated to warn people and minimize damage.

Installation of the Didactum Relay Contact Sensor

Installing the Didactum Relay Contact Sensor is straightforward. The sensor is simply connected to the 12V relay output of a Didactum monitoring unit. Wiring is carried out via screw terminals or connectors, ensuring a secure and permanent connection.

Thanks to its compact design, the sensor can be installed in control cabinets, distribution boxes, or directly on the devices to be controlled, saving space. After installation, the sensor is automatically recognized by the Didactum system and can be individually configured via the intuitive web interface.

The switching logic—that is, when and how the relay contact should switch—can be flexibly adapted to the specific requirements. For example, switching times, sensor values (e.g., temperature, humidity, smoke), or external alarms can be defined as triggers. Integration into existing automation and monitoring solutions is easily possible thanks to support for standard protocols such as SNMP, email notification, or SMS alerting.

Application Examples for the Didactum Relay Contact Sensor

  • Access Control: Control of magnetic and bolt locks for doors and server cabinets, granting access to authorized personnel.
  • Alarm Systems: Activation of sirens, flashing lights, or emergency lighting in case of break-in, fire, or other hazardous situations.
  • HVAC Control: Automatic switching of heaters, fans, or air conditioners to optimize room climate and save energy.
  • Lighting Control: Time- or sensor-based switching of lighting systems in offices, corridors, or production areas.
  • Industrial Automation: Control of machines, conveyor systems, or production lines for process optimization and safety.
  • Remote Control and Monitoring: Centralized or decentralized switching of devices and systems, also remotely via network or cloud solution.

Advantages of the Didactum Relay Contact Sensor

  • Versatile applications in IT, building technology, industry, and security technology
  • Easy integration into Didactum monitoring and automation systems
  • High switching capacity up to 5A for numerous electrical consumers
  • Flexible configuration and individual adaptation to specific requirements
  • Reliable remote control and status monitoring via network or cloud
  • Energy efficiency through targeted control of consumers and systems
  • Increased security through direct connection to access control and alarm systems

The Didactum Relay Contact Sensor is the ideal solution for professional control and monitoring of devices and systems in server rooms, data centers, and all critical corporate areas.

It makes a significant contribution to operational safety, energy efficiency, and automation and can be seamlessly integrated into existing monitoring and building management systems.

Usage: Can be connected to the Didactum monitoring system with 12V DC outputs. Used as a switchable relay contact.
Input: Wire terminal, pitch 3.81mm, 2-pin
Output: Wire terminal, pitch 5.0mm, 2-pin
Operating temperature: Min. -50 °C – Max. 105 °C
Operating humidity: Min. 5% – Max. 95% (non-condensing)
Max. switching current: 5A
Max. switching voltage: 250VAC / 30VDC
Max. switching power: 1250VA / 150W
Min. contact load: Not gold plated: 5VDC 10mA
Power consumption: 12 mW
Max. distance: 200 meters
Dimensions: 60×18×18 mm
Mounting: Mounting bracket, adhesive pad, and screws are included.
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Can be used with monitoring unit:

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Monitoring System 50T
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Vorderansicht Didactum Monitoring System 100T
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Modern IP monitoring system for IT infrastructure, buildings, data centers, including web interface, sensors, video, and alerting.
Product number: DI12002

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Monitoring System 300T
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Powerful monitoring system with sensor integration, real-time monitoring, alarm management, and IoT integration for industrial applications.
Product number: DI12003

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Didactum PDU 4T
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Switchable PDU 4T with 4 C13 outputs, SNMP, sensor integration, monitoring, alarms, remote control, Green IT, CAN port.
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Monitoring System 500T
Monitoring System 500T
The 500T monitoring system reliably monitors temperature, humidity, energy, and access in IT, technical, and server rooms.
Product number: DI12004

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Monitoring System 550T
Monitoring System 550T
The Didactum 550T reliably monitors temperature, humidity, airflow, and access in racks, production, and building management.
Product number: DI12005

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Didactum PDU 8T
Didactum PDU 8T
Switchable PDU 8T with 8 C13 outlets, SNMP, sensor integration, monitoring, alarms, remote control, Green IT, CAN connection.
Product number: DI12006

Regular price: €859.00
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Can be used with extension unit:

DIN sensor expansion unit for 8 sensors
DIN sensor expansion unit for 8 sensors
Modular DIN sensor expansion for industrial monitoring. Easy installation, high scalability, and centralized management of all sensors.
Product number: DI13002

Regular price: €240.00
Expansion unit for sensors 8x analog
Expansion unit for sensors 8x analog
The sensor port extension connects to the CAN port of your Didactum Monitoring System and provides 8 additional ports for analog sensors.
Product number: DI13000

Regular price: €240.00

Manufacturer information:

Didactum® Security GmbH

Marsweg 17

48163 Münster
Deutschland

Fon: (+49) 250 19 71 63 54 / (+49) 171 33 11 577
Email: info@didactum-security.de

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