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Low-Voltage Electrical Contacts



Electrical power distribution is the last step of the delivering of electrical power to users. It occurs after production and transmission and it is achieved through a typical network structure such as that of a widespread electrical power distribution, which reaches the final users or consumers.

Low voltage is employed in the majority of private electrical systems, both in urban and industrial environments, as well as in secondary-distribution networks. Low-voltage circuits can be powered by voltages between <50 V and ≤ 1000 V at AC, or  between > 120 and ≤ 1500 V at DC, between poles or between poles and Earth. Such values contribute to achieve relatively low currents (in respect to extra-low voltage) and a major safety (as compared to medium and high voltage, where a risk of electric arcs is more substantial). However, even low voltage can be truly dangerous.

Low voltage is defined as an electrical voltage interval between:

Alternating current:
from 50 to 1.000 volts

Direct current:
from 120 to 1.500 volts


In low-voltage devices, electrical contacts are mainly applied to switches, contactors and relays. In the chart below our alloys are shown. They can be applied to build the above-mentioned devices. Forms and dimensions of sintered contacts depend on our customers’ requests.

Low-Voltage Electrical Contacts - syntesalloys spa

  50%AgWC         Miniature circuite breakers



  97%AgC           Miniature circuite breakers

low-voltage electrical contacts - syntesalloys spa


  85%AgNi                                                             Contactors
  80%AgNi                                                   Medium switches


  92%AgSnO2 Contactors
  90%AgSnO2 Earth Leakage circuit breakers
  88%AgSnO2 Miniature circuit breakers