Universal push button panel, feedback, 2-aspects

Feedback compatible push button panel with impulse-contact for four semaphore signals with 2 aspects, tracks or universal relay, item-No. 5551. Authentic feedback of the signals, tracks or relays by 8 red, green and yellow LEDs. Several panels can be stringed together. Only usable for signals with authentic limit stop by mechanical contacts. Contact load: 2 A.