transformador 230V 42VA 1x12V

transformador 230V 42VA 1x12V

Transformer 230V 42VA 1x12V

A transformer is an electrical device that transfers energy between two circuits through electromagnetic induction.

PTR002731
Stock Reduzido
25,58 €
Com IVA

Descrição

Transformer 230V 42VA 1x12V

A transformer is an electrical device that transfers energy between two circuits through electromagnetic induction. A transformer may be used as a safe and efficient voltage converter to change the AC voltage at its input to a higher or lower voltage at its output without changing the frequency. Other uses include current conversion, isolation with or without changing voltage and impedance conversion.

A transformer most commonly consists of two windings of wire that are wound around a common core to provide tight electromagnetic coupling between the windings. The core material is often a laminated iron core. The coil that receives the electrical input energy is referred to as the primary winding, the output coil is the secondary winding.

An alternating electric current flowing through the primary winding (coil) of a transformer generates a varying electromagnetic field in its surroundings which induces a varying magnetic flux in the core of the transformer. The varying electromagnetic field in the vicinity of the secondary winding induces an electromotive force in the secondary winding, which appears as a voltage across the output terminals. If a load is connected across the secondary winding, a current flows through the secondary winding drawing power from the primary winding and its power source.

A transformer cannot operate with direct current. When connected to a DC source, a transformer typically produces a short output pulse as the input current rises.

Specifications

  • Voltage: 1 x 12V
  • Current: 1 x 3500mA
  • Rated power: 42VA
  • Weight: 1260g
  • Dimensions:
  • Height: 60mm
  • Width: 70mm
  • Depth: 75mm
  • Red wires: primary
  • Blue wires: secondary

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