General
Manufacturer	Dold
Function	Operating delayed
Operating voltage	AC/DC 12-240 V
Delay time	0,05-300 S-H

The Dold time relay MK9906N.82AC/DC12-240V0,05S-300H is an industrial-grade relay designed for time-delayed switching functions. It is used to control electrical loads with a delayed-activation function, where the switching operation occurs only after a pre-set delay time has elapsed. The device is designed for use in industrial control and automation systems where precise time control is required. It features a mechanical time setting adjusted via a rotary dial, and is rated for operating voltages in the range of AC/DC 12 to 240 volts.

Applications
This time relay is used in manufacturing automation systems, machine control, and building automation. Typical applications include delaying start-up sequences, protecting switching operations against overly rapid activation, or controlling pumps, motors, and lighting systems. The delayed-activation function allows, for example, a motor to start only after a vacuum system has reached operating speed, thereby avoiding mechanical stress.

Functions and Features in Detail
The relay offers an adjustable delay time ranging from 0.05 seconds to 300 hours. The time setting is adjusted via a mechanical rotary dial on the housing, enabling precise and repeatable adjustments. The switching function operates with delayed activation, meaning the contact switches only after the set time has elapsed when the relay is energized.

Technology Explained Simply
The device operates using an electromechanical time control system, where the delay time is achieved through a mechanical drive mechanism (e.g., spring or clockwork). The operating voltage can be either alternating or direct current, covering a voltage range of 12 to 240 volts AC/DC. The switching function is performed via an electrical contact that closes after the set time has elapsed. The time setting is continuously adjustable, allowing flexible adaptation to various requirements.

Compatibility and Accessories
The time relay is designed for use in standard plug-in modules and can be mounted in enclosures or control systems. It features a plug-in connector that enables easy integration into existing circuit diagrams. No additional software or external control unit is required, as the time control is purely mechanical.

Mounting and Installation
Installation is performed by plugging the relay into a suitable module or enclosure system. No additional fastening or tools are required. Electrical connections are made via the integrated terminal clamps. The delay time is adjusted using the rotary dial on the housing, which remains accessible after installation.

Operational Advantages
The delayed-activation function enables controlled and step-by-step activation of loads, increasing the service life of machines and systems. The mechanical time setting offers high reliability and is independent of electronic components, which could fail during voltage fluctuations or interference. The wide voltage range of 12 to 240 volts AC/DC makes the relay suitable for a variety of applications without requiring additional voltage converters. The continuous adjustability of the time setting allows precise adaptation to specific process requirements.

Protection Rating
It is intended for use in enclosed enclosures, where it is protected from direct exposure to dust, moisture, or mechanical impacts.

Manufacturer and Type
The device is manufactured by Dold, a provider of control and switching devices for industrial applications. The type MK9906N.82AC/DC12-240V0,05S-300H denotes the specific version with delayed-activation function, an operating voltage range of AC/DC 12–240 V, and a time setting range of 0.05 seconds to 300 hours. The manufacturer’s part number is 0054056.