The document lists the specifications of the EWS series switching power supplies, including input voltage range, output voltage range, cooling, operating ambient temperature, withstand voltage, safety standard, EMI and functions.
This document provides technical specifications for the Densei Lambda EWS series of single-output switching power supplies. The series includes 74 models with output powers ranging from 15W to 1500W, featuring wide input voltage ranges and various cooling methods including convection and forced air.
| Output power range | 15 ~ 1500W |
|---|---|
| Input voltage range (EWS15-50) | 85 ~ 265VAC universal input |
| Input voltage range (EWS300-1500) | 100/200VAC auto-selectable or user-selectable |
| Output voltage range (Standard) | +10% or +20% |
| Cooling method (Small models) | Convection cooling |
| Cooling method (Large models) | Forced air cooling by internal fan |
| Operating ambient temperature | -10 ~ +60°C (Output derating) |
These larger models use forced air cooling provided by an internal fan.
The EWS1500 allows the output voltage to be programmed from 0V up to 120% of the nominal value.