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DAB7N-40 series DPN Miniature Circuit breaker(MCB)

>> Introduction DAB7N-40 Series miniature circuit breaker adopts double-break point of 1P+N,the two poles are insulated and isolated from each other,under synchronous operation,N-pole always will make first and break later, which guarantees electric arc breaking capacity of protected pole, also ensures safety of controlled circuits and electric equipment. >> Advantages ·  Two types of overcurrent protection – thermal and electromagnetic. ·  Independent contact position indicator. ·  DIN rail latch with a double fixed position. ·  Wide range of operating temperatures from –40 to +50° С. ·  Wide engagement lever with improved contact area. ·  Notches on terminal clamps lower thermal losses and boost the mechanical stability of connection.   >> Electrical parameters of DAB7N-40 miniature circuit breaker Standard of conformity: IEC60898, GB10963 Rated power: 50-60HZ Rated voltage: 230V Rated current: 40A Rated insulation voltage: 500V Impulse withstand voltage: 4KV Endurance: no less than 180,000 times of on-off Instantaneous trip type: B/C Rated breaking capacity: 6 Release type: thermo-magnetic   >> Mechanical parameters of DAB7N-40 miniature circuit breaker Protection grade: IP20 Electric wire: 1~35mm2 Working temperature: -5~+40℃ Flame retardant grade: grade2 Altitude: ≤2000 Class of pollution: 2 Installation environment: Avoid obvious shock and vibration Installation grade: grade II Installation method: Using 35mm guide rail according to IEC standard Terminal type: Dual-purpose terminal can be connected to the bus bar and conductor. Terminal connection ability: conductor 1-25mm2, bus bar thickness 0.8-2mm Guide rail: DIN35guide rail   >> Technical Features
MCB DAB7-40
For protection of general power distribution (IEC/EN 60898-1)

 

Poles

1P

Electrical performance
Functions

short circuit protection,overload protection,isolationg,control

Rated frequency f(Hz)

50-60Hz

Rated working voltage Ue(V)AC

230

Rated current In ( A)

40

Rated insulated voltage Ui( V)

500

Impulse withstand voltage Uimp(kV)

4

Instantaneous tripping type

B/C

Rated short circuit Icn(kA)                        DAB7-40

6

Release type

Thermal magnetic type

Service life(O~C)

Mechanical

 Actual value

12000

     Standard value

4000

 

Electrical

 Actual value

6000

     Standard value

4000

Connection and installation
Protectiom degree

IP20

Wire                                            mm²

1~35

Working temperature

-5~+40℃


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