No chance to switch-off? With the Marquardt 1550 it will be possible!

Imagine a situation that you switch on a circuit, which because of a failure has a much higher power consumption than it should have or from any reason it has a much higher in-rush current than usually. In such and similar cases it happens that the switch contacts weld together. At the subsequent attempt to switch off the circuit, a relatively small force of the rocker switch spring already may be insufficient to open these contacts thus it isn´t possible to switch off the circuit correctly. This is especially unpleasant at various control panels in the production operation, where in these cases the only way is to switch off the whole device or a complex of devices by means of a common master switch.

To decrease this risk, switches Marquardt 1550 series are equipped by a system of forced opening. Contacts or controlled by a control mechanism not only by means of a spring but also by means of a lug, which is able if necessary to push the contact bridge actuator by a significantly higher force than the spring alone.

We offer to you from our stock the 1555.3108. It represents a double pole switch with a green illuminated window, with a maximum current 16(4)A, resp. 10(4)A when a higher contacts lifetime is guarrantied – 50 000 cycles. The switches handles up to 100 A in-rush (capacitive) currents. Contacts are silver based and terminals are quick connect 6.3mm. To install to panel only a standard 27,2 x 12,2 mm cut-out necessary. Appliance panel can be 0.80 to 5.00 mm thick.