The transformer is designed for continuous operation, powered with AC 230V. On the output we get the AC voltage: 17V 24V or 30V. The transformer is protected: (1) protection in the form of a fuse in the power supply circuit (T 630mA 250V), (2) Overload. Designed to work in sections power alarm systems. Supply voltage: 230V AC. Current consumption: 0.40Amp. Output voltage: 17, 24, 30V AC. Dimensions: 136 x 95 x 76 mm. Operating temperature: -10 ... +40° C. Protection class: 43IP.