Description

The ST301 is a 4VA bell transformer providing a 230V AC input with an 8V or 12V AC output, designed for operating door bells, chimes, or low-voltage signalling devices from a 230V AC supply. It is DIN rail mounted and occupies 2 modules.
The 4VA rating suits standard domestic doorbell systems. The dual output voltage (8V/12V) provides compatibility with a wide range of doorbell and chime products. Output current is 0.5A at 8V or 0.33A at 12V.
Part of Hager’s bell transformer and signalling range, the ST301 is installed within a distribution board and is part of a range including the ST303 (8VA) and ST305 (16VA) for higher-powered signalling applications.