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The Berker Anthracite Step Switch (21237A) is a 5-contact momentary push-button switch designed primarily for controlling electric steps on caravans, motorhomes and campervans. Often found as an OEM replacement switch used by Swift and other manufacturers, this anthracite-coloured component can operate on both 12 V and 24 V electrical systems, making it suitable for a range of leisure-vehicle electrical setups.
Reliable Push-Button Action: Designed for frequent use with electric steps or similar applications.
5-Contact Design: Provides robust connectivity for controlled step function.
12 V/24 V Compatible: Works with common caravan electrical systems.
Anthracite Finish: Neutral colour that blends well with interior switch panels.
OEM Fitment: Used by respected manufacturers (e.g., Swift) and suitable as a replacement part.
Model: 21237A
Colour: Anthracite / Black finish
Contacts: 5-contact push-button
Voltage Compatibility: 12 V and 24 V systems
Application: Caravan, motorhome or campervan electric step control switch
✅ 1 × Berker Anthracite Step Switch (21237A) – 5-contact push button
✔ Direct Replacement: Ideal for replacing worn or broken step switches in leisure vehicles.
✔ Durable Design: Quality construction for frequent use in recreational vehicles.
✔ Flexible Voltage Use: Works with both 12 V and 24 V systems.
Controlling electric steps on caravans and motorhomes
Replacing or upgrading worn step switches
DIY electrical repairs and leisure vehicle refurbishments
Ensure your wiring matches the 5-contact configuration before installation.
Disconnect power before fitting to avoid short circuits or damage.
Test switch operation after fitment to confirm correct wiring and functionality.
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