The Block ACT 63VA Safety Isolating Transformer 24V is a short circuit-steady security transformer with encapsulated in resin and integrated security by a temperature protection in a stable plastic case. Manufactured to a high standard with permanent corrosion protection, high insulation value and maximum electrical reliability thanks to XtraDensiFill resin encapsulation, and suitable for a range of applications, such as installation in small distributors or counter places etc. Also suitable for creating SELV and PELV circuits because of the limit on the output voltage. * Short-circuit-proof * Integrated short circuit and overload protection * Plastic housing for rail mounting (in consumer units/meter mounting boards)