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