Delayed response two-wire time relay with fixed delay time. Compact, waterproof potted modular system. Insensitive to vibrations, free of bounce and wear due to omission of mechanical components. If the operating voltage is applied to the delay circuit in series with the consumer, after the delay time tv it is activated and only disabled when the operating voltage is interrupted. It is not necessary to pay attention to the polarity of the voltage. For proper functioning of the relay the load current must be at least as high as the specified holding current.