Safety Transformer

Definition of a Safety Transformer

The safety transformer is a transformer for supplying SELV circuits. With safety transformers, the protective measure “safety extra-low voltage” can be fulfilled. Safety transformers are designed to supply a device or distribution circuits with voltages up to 50 V AC, or smoothed DC voltage up to 120 V (open circuit and load), in order to prevent unacceptably high and dangerous contact voltages in the event of a fault.

Maximum Rated Values

Input voltage: ≤1100V
Output voltage: ≤ 50VAC or ≤ 120VDC
Frequency: ≤ 500 Hz
Maximum power for single-phase transformers: 10 KVA
Maximum power for three-phase transformers: 16 KVA