Reducer coupling OBO Bettermann 107/R M M32–M25, light gray (MPN 2030640)

Reduktion 107/R M M32-M25 in light grey is a cable gland reducer produced by obo bettermann. It adapts a metric M32 thread to M25, allowing secure, sealed transitions between conduit or enclosures with different thread sizes. The part is intended for use in electrical installations where a smaller cable entry is required while maintaining compatibility with standard M32 fittings.

Advantages

The reducer provides a reliable mechanical transition between M32 and M25 metric threads and is made in a light grey material suitable for typical indoor electrical environments. Its design ensures stable mounting and helps maintain protection against dust and basic mechanical stress when used with compatible seals and enclosures. The compact form factor saves space and simplifies retrofits where thread sizes differ.

Suitable for

• Adapting M32 threaded housings to accept M25 fittings or glands
• Cable entry points in electrical junction boxes and enclosures
• Retrofit and maintenance work where reducing thread size is required

When it may not be suitable

The reducer is intended for matching metric threaded connections only and does not provide electrical insulation or advanced environmental sealing by itself; final protection depends on the mating glands and enclosure. It may not be suitable for outdoor installations with high UV exposure or aggressive chemical environments unless combined with appropriate sealing and protective measures.

Key specifications

• Thread sizes: M32 to M25
• Color: light grey (close to RAL 7035)
• Material: plastic suitable for electrical fittings (manufacturer standard)
• Application: mechanical thread reduction for cable glands and fittings

How to use

Screw the reducer into the M32 threaded entry of the enclosure or fitting, then install the M25 gland or fitting into the reducer. Ensure threads are clean and compatible, and use the appropriate sealing elements or gaskets if required to achieve the desired level of ingress protection. Tighten to the recommended torque for the mating components to avoid over-stressing the plastic threads.

What to consider before purchase

• Confirm that your enclosure or fitting uses M32 internal threading and that the mating part requires M25.
• Check required ingress protection and select matching seals or glands if moisture or dust resistance is needed.
• Verify material compatibility for the installation environment (UV exposure, chemicals, temperature).

Usage recommendations

Use the reducer together with compatible M25 glands and appropriate sealing rings; avoid excessive torque when tightening to protect the plastic threads and ensure lasting mechanical and environmental performance.