Siemens 52PC4E9 Pilot Light

Siemens 52PC4E9 is a 30 mm pilot light in the Command 52 family, featuring an amber plastic lens and a full-voltage incandescent lamp rated for 120 V, intended for integration into Siemens' 30 mm indicator/pushbutton assemblies. The device is designed for use in industrial control panels and automation equipment where a 120 V, incandescent status indicator is required, providing a clearly visible amber signal within 52-series modules. This model uses incandescent illumination rather than the LED version 52PL4E9XB, which demonstrates Siemens' approach to full-voltage indicators across lamp technologies while preserving the amber lens and panel-fit characteristics. In practice, the 52PC4E9 is compatible with standard 30 mm Siemens indicators and is commonly selected when a traditional bulb source and 120 V operation are preferred for legacy control circuits. 52PC4E9 is cataloged alongside other 52-Series amber indicators for 120 V full-voltage operation, making it a straightforward replacement in legacy Siemens control panels and other 30 mm indicator modules.