General
LED colour	Blue
Operating voltage	12 V
Frequency	50 Hz
Suitable for	push-button VDE
Lever size	large

The article 5TG5505-8KK from Siemens is an LED light insert in blue colour, specifically designed for use in pushbuttons of the DELTA series. It is intended for levers of size large and serves as a visual indicator, for example, to signal the operating status of a switch or control. The light is designed for an operating voltage of 12 V at a frequency of 50 Hz, indicating its use in electrical installations with corresponding supply voltage. The illumination is provided by an LED, ensuring clear, energy-efficient light output and designed for long service life.

Applications

The LED light insert is primarily intended for use in flush-mounted switches of the DELTA product family from Siemens. It is mounted in combination with levers of size large, which are used in residential and commercial rooms for controlling lighting, heating, or other electrical devices. The blue illuminated indicator allows for quick visual recognition of the switch status, especially in dark rooms or low-light conditions. Use in VDE-compliant pushbuttons ensures compliance with applicable safety standards.

Functions and Equipment in Detail

The light insert is designed as a replacement or supplementary part for existing switch configurations. It is integrated into the pushbutton, with the LED visible through the lever. The blue colour is standard for signalling purposes in electrical installations, for example, to indicate operational readiness or active status. The design for levers of size large ensures optimal fit and visual harmony with corresponding switch elements. The LED is designed for an operating voltage of 12 V, requiring a specific power supply that must be present in the respective circuit.

Technology Explained Simply

LED technology enables a compact, energy-efficient, and long-lasting light source. Unlike conventional incandescent lamps, the LED does not generate excessive heat and is more resistant to mechanical stress. The operating voltage of 12 V is typical for applications where a separate, lower voltage is used for signalling to enhance safety. The frequency specification of 50 Hz refers to the European power grid and is relevant for compatibility with electrical supply. The light is not operated as a standalone device but is part of a larger switch system.

Compatibility and Accessories

The LED light insert is specifically developed for use with levers of size large in the DELTA series from Siemens. It is compatible with various lever variants, including models with windows, labelling fields, or symbols, such as 5TG6220, 5TG6200, 5TG6226, or 5TG6211. Use with other levers or switch types is not intended and may cause malfunctions. Combining it with suitable levers allows for individual design of the switch surface, utilising the colour and design variety of the DELTA product line.

Installation and Mounting

Mounting is done by inserting the light insert into the corresponding pushbutton, aligning the LED position with the lever. Installation requires securing the light insert in the pushbutton housing, with electrical connections to the existing 12 V supply. The exact mounting instructions are included in the respective switch manual or technical documentation of the DELTA series. Use in VDE-compliant pushbuttons ensures compliance with safety regulations.

Operational Advantages

Using the LED light insert provides clear, energy-efficient signalling, improving switch operability. The long service life of the LED reduces maintenance effort, and the low heat generation increases safety. Compatibility with various levers in the DELTA series allows flexible design of the switch surface, maintaining aesthetic harmony in the room. Use in VDE-compliant pushbuttons ensures compliance with applicable standards.