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FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020
Mercury Relay Tube
Relais à mercure

FRABA was founded by Franz Baumgartner in 1918 as the FRABA Fabrik Elektr. Apparate. In the same year, Franz Baumgartner received his first patent for a “Petri Switch”; this patent would be the first of many. The company specialized in producing mechanical relays for electrical alarm and safety devices; until 1943, the company was based in Cologne-Klettenberg with two departments. From 1919 onward, the production and manufacturing expanded. It is still active today.

This is basically a small incandescent lamp (the wire must not glow) in which the mercury is moved by the hot air pressure, establishing a contact between two wires.

Spule an 220 Volt
Kontakt 4 Amp
Belastung bei 220 Volt

 

FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020

Hauteur • Height • Höhe : 134 mm • 5" 1/4
Diamètre • Diameter • Durchmesser : 47 mm • 1" 7/8

FRABA

FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020

FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020

FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020

FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020

FRABA Quecksilber Relais Röhre Typ GRSD Nr. 2020

 


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