Дом / Продукты / Автоматический выключатель низкого напряжения / Миниатюрный автоматический выключатель (MCB) / QM2-63s mcb miniature circuit breaker

QM2-63s mcb miniature circuit breaker

Tripping characteristics

Based on the Tripping Characteristics, MCB are available in" B"", C"and" D"curve to suit different types of applications.
"B"Curve for protection of electrical circuits with equipment that does not cause surge current (lighting and distribution circuits) Short circuit release is set to (3-5)In.

Описание

QM2-63s mcb miniature circuit breaker



Technical Data

Electrical Features

Rated current In1,2,3,4,5,6,8,10,13,16,20,25,32,40,50,63A
Poles1P, 1P+N, 2P, 3P, 3P+N,4P
Rated voltage Ue240/415V~
Insulation voltage Ui500V
Rated frequency50/60Hz
Rated breaking capacity1-40A 6,000A / 50-63A 4,500A
Energy limiting class3
Rated impulse withstand voltage(1.5/50) Uimp4,000V
Dielectric test voltage at ind. Freq. for 1 min2kV
Pollution degree2
Thermo-magnetic release characteristicB,C,D


Mechanical Features

Electrical life4,000 Cycles
Mechanical life10,000 Cycles
Contact position indicatorYes
Protection degreeIP20
Reference temperature for setting of thermal element30℃
Ambient temperature (with daily average≤35℃)-5℃~+40℃
Storage temperature-25℃~+70℃


Installation

Terminal connection typeCable/Pin-type busbar
Terminal size top/bottom for cable25mm2 18-3AWG
Terminal size top/bottom for busbar25mm2 18-3AWG
Tightening torque2.5Nm 22In-Ibs
MountingOn DIN rail EN60715(35mm) by means of fast clip device
ConnectionPower supply in both directions


Combination with accessories

Auxiliary contactQM2S-OF
Alarm contactQM2S-FB
Shunt releaseQM2S-MX
Over/Under voltage releaseQM2S-MV+MN


Characteristics Curves


QM2-63s mcb miniature circuit breaker


Tripping characteristics

Based on the Tripping Characteristics, MCB are available in" B"", C"and" D"curve to suit different types of applications.
"B"Curve for protection of electrical circuits with equipment that does not cause surge current (lighting and distribution circuits) Short circuit release is set to (3-5)In.
"C"Curve for protection of electrical circuits with equipment that cause surge current (inductive loads and motor circuits) Short circuit release is set to (5-10)In.
"D"Curve for protection of electrical circuits with cause high inrush current ,typically 12-15 times the thermal rated current (transformers, x-ray machines etc,)Short circuit release is set to (10-20)In.


Circuit Diagram


QM2-63s mcb miniature circuit breaker

Overall and Installation Dimension(mm)


QM2-63s mcb miniature circuit breaker

QM2-63s mcb miniature circuit breaker

QM2-63s mcb miniature circuit breaker

QM2-63s mcb miniature circuit breaker