Vossloh-Schwabe 109553 lamp fuse holder spring for 109547 socket GU4 content_copy

The Vossloh-Schwabe lamp safety retaining spring, manufacturer's number 109553, is a specific connection element for GU4 sockets, particularly for socket 109547. It serves as a retaining spring for secure fixation of GU4 lamps in electrical luminaires and prevents accidental loosening or displacement of the lamp during operation. The spring is mounted onto the socket and ensures a stable connection between lamp and socket, thereby guaranteeing reliable electrical contact.

Applications
The retaining spring is designed for use in luminaires equipped with GU4 lamps. It is particularly used in applications where high mechanical stability of the lamp is required, for example in moving or vibration-loaded environments. Use in outdoor luminaires or areas with increased mechanical stress is possible, provided the entire luminaire is appropriately designed. The spring is not intended for lamps with starter connection, as it does not support starter function.

Functions and Equipment in Detail
The retaining spring is made of stainless steel, ensuring high corrosion resistance and long service life even in moist or aggressive environments. The surface is finished in chrome colour, offering both aesthetic and functional-technical advantages, particularly in terms of abrasion resistance. The spring is designed as a connection element and socket, connecting to socket 109547 via plug-in mounting. Installation requires no additional tools or mounting components, enabling quick and easy assembly.

Technology Explained Simply
The spring provides mechanical fixation of the GU4 lamp in the socket. GU4 lamps are small, two-pole lamps with a plug-in base, commonly used in recessed luminaires or spotlights. The retaining spring ensures the lamp does not become dislodged from the socket due to vibrations or mechanical forces. The spring is designed for lamps with a base type G4/G6, 35, indicating the exact fit and dimensions of the lamp. The weight of the spring is 0.8 g, meaning minimal mechanical load on the socket.

Compatibility and Accessories
The retaining spring is specifically developed for socket 109547 and is directly mounted onto it. It is not universally applicable but only suitable for the specified socket. Use with other socket types is not intended and may result in insufficient fixation or damage.

Installation and Mounting
Mounting is done by simply plugging the spring onto socket 109547. No additional tools or mounting aids are required. The spring fits securely and mechanically secures the lamp. Installation should be performed before inserting or replacing the lamp, with the spring already mounted on the socket before the lamp is inserted. The spring is not intended for lamps with starter connection, as it does not support starter function.

Operational Advantages
The retaining spring ensures reliable and stable fixation of the GU4 lamp, increasing operational safety. Made from stainless steel, the spring is durable and resistant to corrosion. The chrome surface provides additional protection against abrasion and soiling. The simple plug-in mounting allows for quick installation and maintenance, reducing working time during installation and servicing. The spring is lightweight and imposes no additional load on the socket.

General
Material	stainless steel
Colour	Chrome
Lamp holder	G4/G6, 35
Mounting type	Plug-in mounting
Model	Connection element and lamp holder
With starter insertion

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