Phase sequence indicator with LEDs and contact-protected plugs 600 V CAT III. Fulfills building regulations set forth in DIN VDE 0413. The phase sequence is acquired by means of an electronic circuit. The direction of rotation is indicated by one of the two-directional arrows, each of which is equipped with an LED. An LED is provided for each phase which indicates whether or not the phase conductor is live. The device can be used in all low-voltage systems. The device is capable of withstanding severe mechanical stress. The connector cables are permanently attached to the device.