EXTERNAL BYPASS SWITCH INSTALLATIONEaton FERRUPS FE/QFE UPS (500 VA–18 kVA) Installation Guide 164201403 Rev Bwww.eaton.com/powerquality30Table 9. External Bypass Switch Wiring DiagramsModel (Frequency) UPS Input Voltage UPS Output Voltage Bypass Switch Type Wiring DiagramFE 500 VA–3.1 kVA(60Hz)120 120 MBB or BBM Figure 8 on page 36208 or 240 120/208 or 120/240 MBB or BBMFor 208V, use BBM onlyFigure 9 on page 37208 or 480 source*/240 input120/240 MBB or BBM Figure 10 on page 38QFE 500 VA–3.1 kVA(50 Hz)120 120 MBB or BBM Figure 8 on page 36220, 230, 240 220, 230, 240 MBB or BBM Figure 11 on page 39FE 1.15 kVA–3.1 kVA(60 Hz)220 220 BBM Figure 8 on page 36FE 4.3–18 kVA (60 Hz) 120(4.3–7 kVA only)120 MBB or BBM Figure 12 on page 40208 or 240 120/208 or 120/240 MBB or BBMFor 208V, use BBM onlyFigure 13 on page 41208 or 480 source*/240 input120/240 MBB or BBM Figure 14 on page 42220** 220 BBM Figure 15 on page 43QFE 4.3–18 kVA (50 Hz) 220, 230, or 240 220, 230, or 240 MBB or BBM Figure 15 on page 43*With a step-up or step-down transformer.**Contact your service representative for (a) single-phase installations that do not have the same input and outputvoltage, or (b) split-phase installations that require 220 Vac.