NDB2LE-40

1. Application Scope and Purpose

• Short-circuit protection
  • Overload protection
  • Current leakage
  • Isolation

The NDB2LE-40 series of residual current action circuit breakers provide the ground leakage, direct or indirect electric shock by human body and other faults protection, which are applicable to the low-voltage terminal distribution in the industry, civil buildings, energy, communication, infrastructure and other fields.

2、 Main technical specification

●Electric parameter

○Rated working voltage (Ue): AC230/240 V

○Voltage frequency(f):50/60Hz

○Rated current(In): 2A,4A,6A,10A,16A,20A,25A,32A,40A

○Rated residual current(IDn): 30mA，100mA , 300 mA

○Rated limited short-circuit current（Inc）: 6kA

○Impulse withstand voltage:4kV

○Mechanical and electrical life:10000 times

○Rated residual making and breaking capacity ：500A

○Residual current operating characteristic：A, AC

●Isolation function

○Actual breaking instructions

●Wiring

○Tunnel type terminal

○Connection area:1mm2～16mm2

●Standard reference

○GB/T 16917.1、IEC 61009-1、GB/T16917.22、IEC61009-2-2

●Environmental protection standard

○Meeting RoHS requirement

3、Normal working environment

○Altitude: ≤2000m

○Ambient temperature: -25℃~+60℃

○Resistant to the humid air (moisture resistance): The humidity is 90%-96% and 95%-100% at 55℃ and 25℃ respectively.

○Resistant to salt mist and oil mist.

○Service place without explosive media, gas and dust which are corrosive and conductive.

○A place free from rain and snow.

4、Tripping characteristic

Type B (3~5) In Type C (5~10) In

5、Outline and installation dimensions

6、Installation method

Installed in TH35mm x 7.5 standard guide rail

7、Package and storage

6 pcs per box. Packing cartons of products should be stored in the warehouse where the air circulation and relative humidity is not more than 80% and the temperature is not higher than + 80℃ and not less than – 40℃. Without acidic, alkaline and other corrosive gas. Under the above conditions, the storage period since the production

date is not more than three years.

8、Accessories list and installation

OF2 Auxiliary Switch,SD2 Alarm Switch,MX+OF2 Shunt Release,NGQ2(A) Over/under voltage release， TM2 Remote motor Operating device，TM2GQ   Automatically closing device of over/under voltage.

9、Notice

●No responsibility for problems occurred by disassembly privately;

●Please make sure reliable connection to avoid fault tripping or damage of terminals caused by exceptional heat;

●Don’t use hand to touch the exposed non-insulated part when the circuit breaker is powered.

●No responsibility for problems occurred by debugging the circuit breaker’s characteristic optionally.

●Simulating test should be made once a month by pressing the test button to check whether the circuit breaker works normally. If RCBO is abnormal, it should be replaced.