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Relay Modules
Control and automate electrical systems with reliable relay modules. Ideal for industrial and building automation, these modules offer flexible switching, isolation, and integration with PLCs and control panels.

Time relay, Timers
DOLD has been a renowned, innovative manufacturer in the field of timer technology for decades that has continued to set standards with its developments. Time relays, that is, relays with specific time response, help you to cost-effectively realised start-up and shut-down delays in industry and building technology. The timer technology from DOLD includes both electro-mechanical and electro-pneumatic time relays as well as electronic devices on the basis of modern microprocessor technology.

Control devices
Control technology for all requirements
DOLD is a pioneer in the field of control technology and present the first SPS in a standard housing in the automobile and tool machine industry in 1978. Benefit from this experience. DOLD offers you a universal portfolio of safe, efficient solutions for control technology that is tailored to your needs. A comprehensive palette of field bus-capable input and output modules are available for you.
DOLD is a pioneer in the field of control technology and present the first SPS in a standard housing in the automobile and tool machine industry in 1978. Benefit from this experience. DOLD offers you a universal portfolio of safe, efficient solutions for control technology that is tailored to your needs. A comprehensive palette of field bus-capable input and output modules are available for you.

Installation electronics
DOLD offers you a wide palette of products for installation technology. These basic devices for modern building automation ensure that you aren't left standing in the dark or ensure that energy is reasonably saved over the scope of the lighting controls. Alongside timers and remote switches, energy-saving switches and load shedding relays, additional installation devices, such as Venetian blinds switches, network relays or the innovative hybrid switch relays round out the coordinated DOLD programme of installation devices.

Functional safety, Safety relay modules
The safety relays of the SAFEMASTER series monitor safety functions such as emergency stop, safety gate, light barrier, two-hand control, safety mat or light grid as well as other functions. The solutions for safe drive monitoring ensure increased productivity and operator safety by combining safe speed, standstill or frequency monitoring, optionally also sensorless. The multifunctional safety solutions enable safe monitoring of all safety circuits of machines and systems through modular and configurable safety systems. In addition to the safe mobile radio emergency stop system and wireless enabling switches of the SAFEMASTER W family, Dold also offers a safe, bidirectional radio safety system.

Drive technology, Motorstarter
In the field of smart drive technology, Dold offers powerful and flexible device solutions such as softstarters and softstop devices, smart motorstarters, motor braking devices, reversing contactors as well as solid state relays / solid state contactors and speed controllers or phase controllers. In today's machines and systems, the most commonly used drive is the three-phase asynchronous motor. Processes such as starting, reversing and braking motors are among the main tasks of electronic switching devices. Where high switching frequencies or high switching cycles are required, solid-state switching devices have proven themselves in industry. With their long service life due to wear-free switching, they solve switching and control tasks in specific applications in a particularly economical way.

Electrical safety - residual current and insulation monitoring
Dold offers you a comprehensive product range in the field of electrical safety of residual current monitors, insulation monitoring devices, insulation fault location systems as well as measuring relays and monitoring relays for unearthed (IT systems) and earthed power systems (TT and TN systems).
The devices detect and report at an early stage when critical limit values of electrical quantities, such as current, voltage, power, insulation resistance, etc., are exceeded. Hazards for man and machine can thus be reliably avoided. Furthermore, the availability of your machines and systems is increased and production downtimes are minimized. The portfolio ranges from standard devices for monitoring individual measured variables (residual current monitors, insulation monitors, etc.) to multifunctional devices and flexible fault indication systems.
The devices detect and report at an early stage when critical limit values of electrical quantities, such as current, voltage, power, insulation resistance, etc., are exceeded. Hazards for man and machine can thus be reliably avoided. Furthermore, the availability of your machines and systems is increased and production downtimes are minimized. The portfolio ranges from standard devices for monitoring individual measured variables (residual current monitors, insulation monitors, etc.) to multifunctional devices and flexible fault indication systems.

Insulation monitors
Insulation monitors, also called IMD (Insulation Monitoring Device), monitor the insulation resistance in unearthed AC, AC/DC and DC power supplies (IT systems). This involves measuring the insulation resistance of the IT system to be monitored against earth. These systems are protected by insulation monitoring devices, the use of which is required by law in IT systems by the "Safety of Machinery" standard. Insulation monitoring devices are used to prevent accidents in the event of insulation faults, to prevent failures and generally to protect against fire and accidents.
The insulation monitors are available for direct current (DC) as well as three-phase, alternating current (AC) and mixed networks (AC/DC). Furthermore, our insulation monitoring devices are used to monitor switched-off loads, mobile power generation or eMobility, DC charging stations and DC networks as well as medically used rooms.
The insulation monitors are available for direct current (DC) as well as three-phase, alternating current (AC) and mixed networks (AC/DC). Furthermore, our insulation monitoring devices are used to monitor switched-off loads, mobile power generation or eMobility, DC charging stations and DC networks as well as medically used rooms.
Relay module
Multi-channel relay board
Industrial relay control module
DIN rail relay module
Relay module with opto-isolation
Programmable relay module
Relay interface for automation
Relay switching module
Compact relay module
Relay module for PLC systems
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