• A timing relay is a special relay variant which can be used to realize specific timing functions in a cost-effective manner
• Electronic timing relays with semiconductor outputs for frequent wearless switching
• Easy and cost-effective stockkeeping because of only a single device for many applications (multifunctional relays)
• Save space by narrow design
• Elapsed time indication for electromechanical timing relays

Timer relays (relays with a defined timing function) are used in industry or building automation to achieve economic on or off delayed time functions. Electromechanical timers are normally syncronous motor driven, electro-pneumatic timers have a neumatic time arrangement and modern electronic timers a re controlled by microprocessors. Electronic timers incorporate conventionel relay contacts or semiconductor outputs.

Functions

• Delay on operate: Initiation is by applying the operating voltage. Once the set delay time has lapsed the relay switches to its operated condition.
• Release delay: When the operating voltage is applied the relay immediately switches to its operated condition. When the operating voltage is interrupted, the release delay time starts. Once the set delay time has lapsed the relay switches to its normal position.
• There is a differentiation between devices without and such with auxiliary voltage.
• Devices without auxiliary voltage can only control short times (up to 5 minutes), devices with auxiliary voltage are also suited for longer times because their delay function is initiated by triggering the control input. These products are also suited for applications with very short operating times.
• Flasher timers: When the operating voltage is applied the relay switches to its operated condition (on the lead edge of the pulse). Once the pulse time has lapsed the relay switches to its normal position. After the end of the dead time it returns to its operated condition and so on (pulse time = dead time).
• Fleeting action: A fleeting action NO relay switches to its operated condition without delay when the operating voltage is applied. Once the set fleeting time has lapsed the relay switches to its normal position. A fleeting action NC relay has voltage applied to the control input via the control contact. When the control contact is opened the relay immediately switches to its operated condition. Once the set fleeting time has lapsed the relay switches to its normal position.
• Multifunction relays: These devices can be used for each one of the above functions. Needed functions can be adjusted on the device.

• Delay on operate: Lead timing circuits (e.g. preheating); delay times in control systems: delayed starting of plant components, e.g. starting of slipringmotors (switching starting resistors), burner controls, escalators, elevators
• Release delay: After-run timing, e.g. fans, lighting controls, staircase lighting, minute lighting, delayed switching to emergency generating set/lighting
• Flasher timers: trigger fault indicators or navigation lights: flashing lights on cranes, wind parks, airport lighting systems
• Cyclic timers: e.g. traffic light controls, automatic baking machines
• Fleeting action timers: dosing systems, washing facilities
• Pulse shapers: e.g. switch cabinet: setting the length of different signals
• Multifunction relays: versatile by function selection

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  Multifunction relays
  MULTITIMER
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  Flasher and cycling
  timers MINITIMER
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  Fleeting action relays,
  pulse extender,
  star delta timer MINITIMER
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  Timers on delayed,
  MINITIMER
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  Timers off delayed
  MINITIMER