110 V vs 220 V: PSU Selection for Phone Farm Hardware

Wrong PSU region causes rework at install. Declare destination voltage on RFQ. **Common regions:** - North America: 110–120 V circuits — PSU and plug matched on invoice - EU / UK / most of Asia: 220–240 V — different PSU SKU and cord set - Mixed facilities: quote per rack if you deploy globally from one purchase **What we do not guess:** We do not infer voltage from shipping country alone if you have a forwarder warehouse — state **install site** voltage. **Converters:** Buyer-supplied step-up/down for ad-hoc tests is not a substitute for correct PSU on production racks. **Labeling:** Cartons include PSU rating label photo on request for facility approval. Add "Voltage region" in Contact RFQ — it maps to the same field sales uses on proforma.