EATON Power supply EN54-4 4,5A 27,6Vdc
https://www.eutronix-safety.eu/shop/sps-2453-eaton-power-supply-en54-4-4-5a-27-6vdc-10754
https://www.eutronix-safety.eu/web/image/product.template/10754/image_1920?unique=f794b46
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Internal Reference: SPS-2453