The F-OK B 400 is an instantaneous electromagnetic, on-off relay with 4 double-cutout changeover contacts in series. It is a high-performance, rugged relay, easy to assemble, ....

Anemometer and wind vane
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The PRTC protects people and equipment against the hazards that can cause a secondary circuit on a current transformer to open.
Permanently connected to the CT' s secondary, it....

Unpluggable relay with 2, 4 or 6 changeover contacts ( C, D-4-6PDT) , 5 A and independent cutout chambers.
The perfectly modular POK, BiPOK and TriPOK relays allow the number of....