Time relays for applications with high demands
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.
Multifunction relays
Timers on - delayed
With contact delayed time relays, the start is triggered by the activation of the operating voltage. The relay switches to the work position after the expiration of the configured delay time.
Timers off - delayed
For time relays with recurrence delay, we distinguish between devices with and without auxiliary voltage. While devices without auxiliary voltage are only realisable for short times, those with auxiliary voltage are also suitable for longer periods of time.
Cyclic timers
Clocks from DOLD are important components of traffic light control systems, automatic ovens, et cetera. They have the same function as flasher relays with the difference that the impulse and pause times for time-dependent control systems are different from each other and can thus be set separately.
Flasher relays
DOLD flasher relays are used on cranes, wind power systems as well as airfield lighting where they control position lighting. The control of malfunction notifications on machines, lighting, fans, et cetera is an additional task of these devices. Impulse time and pause time are identical with flasher relays.
Star-Delta Timers
Star-delta timers are used in motor control systems to enable the smooth and efficient starting of three-phase induction motors. These timers reduce high inrush currents during startup by initially operating in a star connection before switching to a delta connection after a preset time delay.
