Eaton PowerXL DE1 series Manual

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Contents

3 Installation3.3 Electrical Installation52 DE1… Variable Speed Starter 11/16 MN040011EN www.eaton.com3.3.7 Installations meeting UL® requirementsDE1... variable speed starters fully meet UL requirements, provided that thefollowing conditions are fully met:• In the case of DE1...-12… devices, the single-phase supply voltage mustbe connected to L1/L and L2/N. The maximum permissible rms voltagemust not exceed 240 V RMS.• In the case of DE1...-34… devices, the three-phase supply voltage mustbe connected to L1/L, L2/N, and L3. The phase sequence does not mat-ter. The maximum permissible rms voltage must not exceed500 V RMS.• In order to meet CSA requirements, a TVSS is required on the DE1...variable speed starter’s mains side. This suppressor must monitor the600 V (phase to earth) and the 600 V (phase to phase), be suitable forovervoltage category III, and provide protection against and be able towithstand a rated surge voltage with 4 kV peaks or its equivalent.• The maximum permissible short-circuit current (AC) in the input powersupply must be 100 kA if fuses are used (600 V, UL class CC or class J).It must be 14 kA RMS if circuit-breakers are used (480 V, miniaturecircuit-breaker type B), as well as for DE1...-34…. devices; 18 kA RMS ifminiature circuit-breaker type E circuit-breakers are used.• There must be a fixed installation with a suitable disconnecting devicebetween the DE1... variable speed starter and the supply voltage asrequired by local safety codes and standards.• Suitable copper wire mains and motor cables with a minimum insulationtemperature rating of 75 °C (167 °F) must be used.• The tightening torques for the power terminals, as defined in thespecification for the individual models, must be used.• Only one single conductor type is permissible for each power terminal.The PE conductor must be connected to metal enclosures using a ringcable lug.• Motor overload protection options:• Overload relay, placed between the DE1... variable speed starterand the motor, that switches off the DE1... device in case of over-load OR• Motor with thermistor that uses a thermistor overload relay (EMT6)to switch off the DE1... variable speed starter in case of overload or• Motor with thermistor that switches off the DE1... variable speedstarter directly with an external fault message (thermistor con-nected to control terminal 3 and +10 V), EXTFLT with mode 1(P-15 = 1), mode 3 (P-15 = 3), mode 5 (P-15 = 5), mode 7 (P-15 = 7),and mode 9 (P-15 = 9). Prerequisite: P-19 = 0, OR• Motor thermal memory (P-33 = 0).Prerequisite: P-08 = Set to rated motor current.￫ Instruction leaflet IL040005ZU includes a summary titled“Additional Information for UL® Approved Installations”.