NDB2LM-63

未分类 580

1、Applicable scope and purpose Short circuit protection

Overload protection Isolation

Earth leakage

NDB2LM-63 series residual current protection module is used for protecting earth leakage, director indirect electric-shock on body and applied in low-voltage terminal distribution field, including

Industry, Civil Building, Energy, Communication and Infrastructure etc.

2、Model and implication:

No.ImplicationNDB2LM-63
1Brand codeND(Nader)
2Product codeB
3Design code2
4Earth leakage protectionL
5Electromagnetic typeM
6Frame rating(A)63
7Instantaneous tripping characteristicB,C,D
 8 Rated current(A)1,2,3,4,5,6,10,16,20,25,32,40,50,63
9Number of poles1P+N,2P,3P,3P+N,4P
10Rated residual operating current30mA,100mA,300mA
11Residual operating current typeA、AC
12level of sensitivityS
3、Main technical specifications
  • electric parameter
  • frequency:50/60Hz
  • Rated working voltage: AC230/240V (1P+N,2P) AC400/415V (3P,3P+N,4P)
    :AC110/120V(1P+N,2P)
  • Rated impulse withstand voltage:4kV
  • Rated insulation voltage:500V
  • Residual operating current type: A、AC
  • Instantaneous tripping characteristic: B、C、D
  • Rated current: 1A,2A,3A,4A,5A,6A,10A,16A,20A,25A,32A,40A,50A,63A
  • Rated breaking capacity: 10kA
  • Rated residual operating current: 30mA,100mA,300mA(regular);100mA,300mA(with time-delay)
  • level of sensitivity: Plain (not labeled), time delay (S)
  • Isolation function
  • Leakage is visible
  • Wiring
  • Tunnel type of wiring terminal
  • Connection area:1mm2~35mm2
  • Tighten screw torque: 3.5 N.M
  • Protection requirements
  • Protection grade:IP20
  • Protection grade for device which is installed in distribution box:IP40 5、Normal working environment
  • Height: ≤2000m, if you want to apply it more than 2000m, you must refer to Miniature Circuit Breaker’s reduced capacity table. Also you can refer to GB/T20645 the technological requirement of the low-voltage electrical equipment when it is usedon high altitude.
  • pollution degree:3
  • Ambient temperature:-25℃~+60℃
  • Stored ambient temperature: -40℃~+80℃
  • Humidity requirement: relative humidity under 40℃≤ 50%;
  • Magnetic requirement: magnetic field should be 5 times less than geomagnetic field in any directions
  • Sine wave distortion: le20s20s.0t4h.a29n 5%
  • Tolerate the influence of 试sa制lt mist and oil mist
  • Used in the place without explosion danger and the medium can’t have the corrosive action on metals and damage the insulation gas and conductive dust.
  • Used in the place without rain and snow.

4、 Tripping characteristic

  • B type curve
  • protect the non-inductive or micro-sense circuit
  • rated current: 1A~63A
  • tripping characteristic: instantaneous tripping range is 3In~5In
  • C type curve
  • protect normal load and distribution wire cable
  • rated current: 1A~63A
  • tripping characteristic: instantaneous tripping range is 5In~10In
  • D type
  • protect industrial distribution system
  • rated current: 1A~63A
  • tripping characteristic: instantaneous tripping range is 10In~14In

5、Outline and installation dimensions

1P+N

2P

3P

3P+N

4P

6、Installation Method

Installed in TH35mm x 7.5 standard guide rail and wired in tunnel type.

7、Packaging and storage

1P+N: 4pcs per box; 2P:3 pcs per box, 3P: 2pcs per box, 3P+N or 4P:1 pcs per box. Packing cartons should be stored where air circulation and relative humidity is not more than 50% and the tempera20t2u0r.e04.i2s9 not higher than + 80℃ and not less than – 40℃, and also  without  acidic alkaline  and  other  corrosive  gas. In  the  above  conditions, the

storage period since the production date is not more than three years.

8、Accessories list and installation

  • OF2 auxiliary contact: mount on the left side of MCB to indicate the tripping status of the associated MCB.
  • SD2 alarm contact: mount on the left side of MCB to indicate the fault tripping status of the associated MCB
  • MX+OF2 shunt tripping device: mount on the left side of MCB to remotely control MCB
  • NGQ2(A)Undervoltage tripping device: mount on the left side of MCB,  realize single-phase overvoltage, undervoltage, under-voltage protection function
  • Tm2 electric operating mechanism:mount on the left side of MCB to breaker on-off control
  • Tm2GQ Since multiple undervoltage: mount on the left side of MCB ,when in the light over-voltage or under-voltage, on line protection

9、Environmental protection requirement Conform to RoHS directive

10、Notice

  • No responsibility for problems caused by disassembling privately;
  • RCD can’t provide protection in the cases that touch two phase line synchronously;
  • Please don’t perform insulating resistance test or voltage-withstand test on the product

directly or indirectly by megohmmeter or similar test devices. If you need, we can offer validated proof regarding this item;

  • When testing insulating resistance of the engineering circuit, the RCD should not be connected to avoid misunderstanding on the products’ quality or damage its PCB;
  • Please make sure reliable connection to avoid fault tripping or damage of terminals caused by exceptional heat;
  • Simulating test should be made once a month by pressing the test button to check whether the circuit breaker works normally. If RCD is abnormal, it should be replaced.
  • If the RCD trip automatically, you must timely analyze the fault reason of the line or the device.
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