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The auxiliary and signal contacts are mounted on the left side of the protective devices, or optionally on the right side in the case of automatic circuit breakers. For auxiliary and signal contacts that are fed via SMISSLINE LA or LB auxiliary busbars, there is a version with integrated contacting. In addition, conventional supply via terminals is also possible. The auxiliary contact works in the same way as the main contacts. The signal contact only works in the event of electrical tripping. This can be simulated with the test button. After each release, the signal contact must be returned to its original position with the orange reset button. The auxiliary and signal contacts with 1S and 1Ö and the connection base are supplied with a contacting piece for direct contacting on a Smissline TP base. The signal contact collective alarm as well as the auxiliary and signal contacts with 2S and 2Ö have two contacting pieces. Signal contact collective alarm with contacting via auxiliary busbars LA, LB: with this add-on element, a cost-effective collective alarm solution can be realised without additional wiring.
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