CHINT NS2-80B User Instruction Download Page 5 | Manualshive

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03

x

times of setting current

Time

(s)

10000

1000

100

10

1

0.1

0.01

0.001

11

2

2
3

3

1 1.5 2

10

100

(

1) Start from cold state, 3-pole

(2) Start from cold state, 2-pole
(3) Start from thermal state, 3-pole

Figure 1 Time – current characteristic curve (20℃)

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Summary of Contents for NS2-80B

Page 1: ...NO 2020 04 Standard IEC EN 60947 2 IEC EN 60947 4 1 NS2 80B AC Motor Starter User Instruction ...

Page 2: ...llation 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 1 2 3 4 Safety Warning ...

Page 3: ...oad and loss of phase The product can also be used for distribution line protection and infrequent load transfer or used as isolator NS2 80B AC motor starter can be added with a set of side mounted auxiliary contacts AU11 1NO 1NC or AU20 2NO See product catalog or product itself for technical parameters of auxiliary contacts Main Technical Parameters 2 Table 1 Main technical parameters No Frame si...

Page 4: ...nducting bar strip length before being inserted into terminal mm Conductor wire conducting bar 2 sectional area mm Allowable maximum number of conductor wire conducting bar to be inserted Size of fixing screws or bolts at wiring end Tightening torque for fixing screws at wiring end N m Operation frequency times hour 690V 400 415 50 60Hz 6kV IP20 Long term duty system 15 4 25 2 M8 6 25 No Parameter...

Page 5: ...ng current Time s 10000 1000 100 10 1 0 1 0 01 0 001 1 1 2 2 3 3 1 1 5 2 10 100 1 Start from cold state 3 pole 2 Start from cold state 2 pole 3 Start from thermal state 3 pole Figure 1 Time current characteristic curve 20 ...

Page 6: ...0A 68 56 80 Figure 2 Overall and installation dimensions of NS2 80B See Figure 3 for assembly procedure of starter and auxiliary contacts when the starter is disconnected a Confirm the starter is disconnected the red OFF button is press down b 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 7: ...nd hold the blue button at the end of the auxiliary contacts and fit it into the starter e After fitting the auxiliary contacts break and make the starter for 5 10 times check if the slot at the center of the auxiliary contacts can move together with the starter reliably In the meantime check if the auxiliary contacts are powered on normally if there is any abnormality repeat step a step d a b c d...

Page 8: ...tarter is within its setting current range 3 3 3 Check if the starter can operate smoothly press down the green button of the starter or turn the knob to ON position flip the guide plate beside the TEST mark on the cover according to the direction shown by the arrow You can hear the operation sound of the contact and the green button will bounce back or the knob will be turned to OFF position Repl...

Page 9: ...15 315 315 315 400 400 No Rated current In A Rated operating current adjustment range of thermal element setting current Melt current backup fuse is only needed when Isc Icu 400 415V aM A gL gG a Maintenance 4 Clean the dust on the motor starter timely Conduct product test and maintenance every half a year to ensure the smooth operation of the product and the good contact of NO and NC contacts Tig...

Page 10: ...operating current of the motor Strong shock or vibration Fine tune the cam to match the set current matches the actual motor current Check installation status and conduct troubleshooting Do not place the product in environment with strong shock or vibration Frequent start of motor The start frequency of the motor should not exceed 25 times per hour The sectional area of the connecting wire is too ...

Page 11: ...QC PASS Test date Please see the packing ZHEJIANG CHINT ELECTRICS CO LTD NS2 80B AC Motor Starter IEC EN 60947 2 IEC EN 60947 4 1 Check 28 09 ...

Page 12: ...C 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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