
Overview
The Atlas Copco Elektronikon Mk5 Graphic Controller Panel for Atlas Copco Air Compressor GA37/GA55 (part number 1900520012) manages the compressor's start/stop, load/unload and pressure regulation. It is an Elektronikon Mk5 Graphic unit — the version with the graphic dot-matrix display — fitted to many GA screw compressors. It is fitted to GA37/GA55.
Replace it when the original is damaged, throwing persistent controller errors, or no longer holding its settings. This is a genuine Atlas Copco part, new and bench-checked, this 1900520012 is a direct replacement for the original unit.
Part of the Elektronikon Mk5 Graphic Controllers range. Not sure this is the right part? Use our compatibility check or learn how to identify your controller.
Compatibility
Confirmed fitment: GA37/GA55. Controllers within one generation share hardware and differ by program — send your model or serial and we confirm the exact match, including any superseded number.
Programming & setup
We can pre-program the unit and migrate your parameters — target pressure, load/unload points, language and any communication options — so it runs correctly the moment it is installed. See controller programming.
FAQ
What is Atlas Copco part number 1900520012?
1900520012 is a genuine Atlas Copco Elektronikon Mk5 Graphic Controller Panel for Atlas Copco Air Compressor GA37/GA55, fitted to GA37/GA55 compressors. It belongs to the Elektronikon Mk5 Graphic control family. We supply it new, tested and — if needed — pre-programmed.
Will 1900520012 fit my compressor?
This controller panel typically fits GA37/GA55. Because controllers in the same generation share hardware and differ only in the loaded program, send us your machine model or serial and we confirm the exact match — including any superseded or replacement part number — before you order.
Is 1900520012 new or refurbished?
We ship 1900520012 as a new, genuine and tested unit. A limited number of refurbished units may be available on request — just ask when you enquire.
Can you program 1900520012 before shipping?
Yes. We program the controller panel and migrate your parameters (target pressure, load/unload set points, language, timers and communication modules) so it runs the moment you install it.
What is the warranty and lead time on 1900520012?
New units are covered by warranty and most ship quickly worldwide. Contact us with your quantity for current lead time and pricing.
Helpful guides
Request a Quote
Send us the part number or your machine model/serial — we confirm the correct controller and quote fast.
Related — Elektronikon Mk5 Graphic Controllers





