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.
Implication
NDB2LM-63
1
Brand code
ND(Nader)
2
Product code
B
3
Design code
2
4
Earth leakage protection
L
5
Electromagnetic type
M
6
Frame rating(A)
63
7
Instantaneous tripping characteristic
B,C,D
8
Rated current(A)
1,2,3,4,5,6,10,16,20,25,32,40,50,63
9
Number of poles
1P+N,2P,3P,3P+N,4P
10
Rated residual operating current
30mA,100mA,300mA
11
Residual operating current type
A、AC
12
level of sensitivity
S
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)
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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