The Siemens 52PA6D2A Pilot Light Push-To-Test Indicator is a 52-series illuminated pushbutton unit with a red pilot light designed for panel mounting in industrial control enclosures. It operates from a 24–28 VAC/DC supply and uses a full-voltage incandescent lamp. The device provides a 1NO-1NC contact configuration, allowing it to function as both an indicator and a basic signaling switch in control circuits. With its Push-To-Test action and red lens, it offers a simple, reliable way to verify status in equipment panels without additional tools.
