Introduction
DAB7N-40 6KA DPN miniature circuit breakers feature design characteristics such as small size, high breaking capacity, and disconnection of neutral lines.

They are widely applied in AC50H low-voltage electrical systems in which the rated voltage is 230V and rated current is no higher than 40A. This prevents against electrical shock. It also equipment from damage caused by overcurrent or short circuiting.

The circuit breaker is also effective at preventing fire hazards as a result of ground current accidents caused by insulation damage within electrical equipment.

Main functions: short circuit protection, overload protection and isolation.

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

Physical parameters
W: 18mm
H: 80mm
L: 72mm

Installable accessories
Auxiliary contact, alarm contact, shunt trip, undervoltage trip, auxiliary contact alarm