Eaton 91PS User And Installation Manual

Also see for 91PS: Safety and installation quick guide Safety and installation quick guide User and installation guide User and installation guide

Contents

• For external wiring, use copper cable rated for 70 °C at minimum. See theappropriate information in Tables9 ,10 and11 . Cable sizes are based onusing the specified breakers.• If cables are run in an ambient temperature greater than 30 °C, highertemperature cable and/or larger size cable may be necessary.• The bypass feed into this equipment uses four wires. The rectifier feed intothis equipment uses three or four wires. The phases must be symmetricalabout ground (from a Wye source) for proper equipment operation.• If the load requires a neutral, a bypass source neutral must be provided. Ifthe load does not require a neutral and there is no neutral conductorconnected at the bypass input, a neutral must be installed to source starpoint.• A readily accessible disconnect device must be incorporated in all fixed inputwiring.WARNINGDo not disconnect the bypass neutral without disconnecting the bypassphases at the same time.Table 9: Minimum recommended multi-core cable and fuse sizes for rectifier and bypassinput and UPS output cables (3 phase input, 3 phase output models)UPS rating (kW) 8 10Cable [mm2]* 4x2.5 4x4Rectifier fuse [A] 16 20Bypass fuse [A] 16 20PE cable [mm2] 2.5 4Maximum conductor cross section Solid/stranded wire 16 mm2Stranded wire with ferrule: 10 mm2Tightening torque [Nm] 1.6 Nm (L, N)10 Nm for 16-35 mm2 wire (PE)6 Nm for 4-10 mm2 wire (PE)* Minimum recommendedTable 10: Minimum recommended multi-core cable and fuse sizes for rectifier input, by-pass input and UPS output cables (3 phase input, 1 phase output)UPS rating (kW) 8 10Rectifier input, cable [mm2]* 3x2.5 3x4Rectifier fuse [A] 16 20Rectifier input, PE cable [mm2]* 2.5 4Bypass input and UPS output, cable [mm2]* 10 16Eaton 91PS/93PS UPS 8-10 kW User's and installation guide© Eaton Corporation plc 2018. All rights reserved. Revision: 003 Document ID: P-164000672 36 (102)