DPN MCB
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.
DownloadElectrical 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℃ | ||
Resistance to humidity and heat | Class 2 | ||
Altitude above sea | ≤2000 | ||
Relative humidity | +20℃,≤90% ;+40℃,≤50% | ||
Pollution degree | 2 | ||
Installation environment | Avoid obvious shock and vibration | ||
Installation class | ClassⅡ, ClassⅢ | ||
Mounting | DIN35 rail | ||
Combination with accessories | |||
Auxiliary contact | Yes | ||
Alarm contact | Yes | ||
Shunt release | Yes | ||
Undervoltage release | Yes | ||
Auxiliary contact+Alarm contact | Yes | ||
Dimensions(mm) (WxHxL) | a | 18 | |
b | 80.7 | ||
c | 72 | ||
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
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