Siemens 52AATG4B is a 30 mm transformer-type integral LED lighting module designed as the indicator component for Class 52 (CL52) pushbutton assemblies. It accepts 120 V AC input and uses a BA9s socket LED lamp, with listings describing the unit as having a yellow housing and a white LED lamp. This Siemens accessory is specified as an accessory for CL52 30 mm light modules and is described as a transformer-type LED indicator with a white LED lamp. The 52AATG4B is intended to provide a built-in LED indication within 52-class pushbutton installations, combining the indicator module and transformer in a compact 30 mm form factor.
