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Summary of Contents for CHINT NS2-80
- Page 1 NO:2020.04 NS2-80 AC Motor Starter User Instruction Standard: IEC/EN 60947-2 IEC/EN 60947-4-1...
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Page 2: Safety Warning
Safety Warning Only professional technicians are allowed for installation and maintenance. Installation in any damp, condensed-phase environment with inflammable and explosive gas is forbidden. When the product is being installed or maintained, the power must be switched off. You are prohibited from touching the conductive part when the product is operating. - Page 3 User Purpose The NS2-80 AC motor starter (hereinafter referred to as starter) is applicable to circuits with frequency of AC 50Hz or 60Hz, rated operating voltage of 690V and below, and current range from 20A to 80A, for infrequent start control of 3-phase AC motor and protection for short circuit, overload and phase failure.
- Page 4 Table 3 Main Circuit Technical Parameters 2 Content Parameters 690V and below Rated operating voltage Ue(V) Rated frequency (Hz) 50/60 Rated duty system, specify level of intermittent Continuous duty system duty (if any) Rated insulation voltage Ui(V) Rated impulse withstand voltage Uimp(kV) IP20 Enclosure protection class Strip length of conductor (wire/busbar) before...
- Page 5 Terminal Name Model voltage thermal voltage current category mark current I (73)43-44 230/240 Instantaneous AC-15 NS2-AU20 (74), auxiliary contact 380/415 (NS2-80) (63)33-34 assembly (64) DC-13 (73)43-44 230/240 Instantaneous AC-15 NS2-AU11 (74), auxiliary contact 380/415 (NS2-80) (61)31-32 assembly (62) DC-13 Table 5 Models and Basic Parameters of...
- Page 6 Time 10000 1000 0.01 0.001 1 1.5 2 x times of setting current 1 Start from cold state, 3 poles 2 Start from cold state, 2 poles 3 Start from thermal state, 3 poles Figure 1 Time – current characteristic curve (20℃)
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Page 7: Installation
3.1 Installation 120.9±0.8 21±0.5 63.6±0.8 107.3±0.8 φ4.5 1/L1 3/L2 5/L3 2/T1 4/T2 6/T3 R2.3 Figure 2 Outline and installation dimensions of NS2-80 NS2-AU20, NS2-AE20, NS2-SH,UV AU11 AE11 1/L1 3/L2 5/L3 2/T1 4/T2 6/T3 100.2 Figure 3 Positions and dimensions of accessories... - Page 8 Step1 Step2 Step3 Figure 4 Assembly method of NS2-AE See Figure 5 for assembly procedure of starter and auxiliary contacts when the starter is disconnected: Confirm the starter is disconnected ; Step1:Hang the front end of the auxiliary contacts on the slot at the left front of the starter and move the auxiliary contacts towards the starter;...
- Page 9 Step1 Step2 Step3 Figure 5 Assembly method of NS2-AU Step1 Step2 Figure 6 Assembly method of NS2-SH/UV 3.2 Wiring Single core PVC insulated coppoer wire is used, see Table 7 for cross- sectional area of wires.
- Page 10 Table 7 Operating current and cross-sectional area of wires Current range Nominal cross-sectional area of wires 12 I≤20＜ ＜ 20＜I≤25 25＜I≤32 32＜I≤50 50＜I≤65 65＜I≤80 3.3 Adjustment and Inspection 1) Check if the rated voltage (Ue) of the starter matches with the actual control voltage of the power supply.
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Page 11: Maintenance
Table 8 Models and current of the backup fuse of the starter Rated Standard rated power Specifications of backup fuse Setting current of 3-phase motor kW current 400V/415V 690V AC-3 range release Ie A aM A gG A aM A gG A 400V/415V 690V... -
Page 12: Environmental Protection
Table 9 Analysis and Troubleshooting of Faults Symptoms Cause analysis Troubleshooting method and precautions The setting current of the Use the cam to fine tune the product to starter is smaller than the match the setting current matches with the actual operating current actual current of the motor. - Page 13 QC PASS NS2-80 AC Motor Starter IEC/EN 60947-2 IEC/EN 60947-4-1 Check 28 Test date: Please see the packing ZHEJIANG CHINT ELECTRICS CO.,LTD.
- Page 14 NS2-80 AC Motor Starter User Instruction Zhejiang Chint Electrics Co., Ltd. Add: No.1, CHINT Road, CHINT Industrial Zone,North Baixiang, Yueqing, Zhejiang 325603,P.R.China E-mail: global-sales@chint.com Website: http://en.chint.com...
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