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Sensing input 110 to 480 Vac for single phase sensing and three phase sensing
5 watt potentiometer
3 wire 3A/phase100-120 Hz
49 to 60 Hz @ 60 Hz preset 55 Hz
SP Powerworld ADVR-321 ADVR-250 Sensing input 110 to 480SP Powerworld ADVR 321 Compatible Automatic Voltage Regulator is a direct replacement for the Original Stamford* MX321 (E000 23212 1P) and discontinued EA321. 275. 00 plus VAT Accepted worldwide as the only Quality and Legal aftermarket replacement. It's been designed to work in exactly the same way and operates at the same performance. Its the same size, function and has the same wiring connections, it also comes with 12 months warranty. The EA321 is
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