Scope of Application
CBRM5L Series Circuit Breaker with Residual Current Protection (hereinafter referred to as Circuit Breaker) is suitable for distribution network with a frequency of 50Hz AC, the rated working voltage of 400V, the rated insulation voltage of 1000V and and the rated current of 800A. It can be used to provide indirect contact protection for people, prevent fire danger caused by grounding fault current caused by equipment insulation damage, distribute electric energy, protect overload and short circuit of lines and equipment, and also be used for infrequent switching of lines and infrequent starting of motors.The rated residual current I△n and the maximum operating time of the rated residual current can be adjusted on site according to the actual situation; When the phase voltage is reduced to 85V, the leakage protection module can still work normally and has the function of leakage alarm output.
The products conform to IEC60947-2 and GB/T14048.2 standards.
Environmental conditions
◆ The installation site shall be free of conductive dust, corro CBRM5L Circuit Breaker with Residual Current Protectionsive gas, flammable and explosive gas, rain and snow;
◆ Altitude:≯2000m;
◆ Ambient temperature: -5℃~+40℃, Average maximum temperature/day: ≤+35℃;
◆ Relative humidity: ≤ 50% (when the ambient temperature is +40℃);
◆ The magnetic field strength of the external magnetic field in any direction of the installation site shall not exceed 5 times of the geomagnetic field;
◆ The installation position shall have good ventilation and heat dissipation conditions.
Model | CBRM5L-125,160 | CBRM5L-250 | CBRM5L-400,630i | CBRM5L-630,800 | |||||||||||||
Shell current Inm (A) | 125,160 | 250 | 400,630i | 630,800 | |||||||||||||
Rated working current In (A) | 16,20,25,32,40,50,63,80, 100,125,140,160 | 100,125,140,160,180, 200,225,250 | 225,250,315,350,400, 500,630 | 400,500,630,700,800 | |||||||||||||
No. of poles | 3 | 4 | 3 | 4 | 3 | 4 | 3 | 4 | |||||||||
Rated insulation voltage Ui(V) | 1000 | 800 | |||||||||||||||
Rated working voltage Ue(V) | AC400 | ||||||||||||||||
Rated impact withstand voltage (kV) | 8 | ||||||||||||||||
Flashing distance (mm) | 50 | 100 | |||||||||||||||
Breaking ability level | S | L | M | S | L | M | S | L | M | S | L | M | |||||
Limit short circuit breaking capacity IcU (kA) | 25 | 36 | 50 | 25 | 36 | 50 | 50 | 50 | 70 | 50 | 50 | 70 | |||||
Short circuit breaking capacity lcs (kA) | 15 | 25 | 36 | 15 | 25 | 36 | 36 | 50 | 70 | 36 | 50 | 70 | |||||
Rated residual operating current I△n (mA) | 100/300/500 | 300/500/1000 | |||||||||||||||
Rated residual non-operating current I△no(mA) | 1/2I△n | ||||||||||||||||
Residual current protection operation time | I△n | 2I△n | 5I△n | 10I△n | I△n | 2I△n | 5I△n | 10I△n | I△n | 2I△n | 5I△n | 10I△n | I△n | 2I△n | 5I△n | 10I△n | |
Maximum breaking time (s) | Non-delay type | 0.3 | 0.15 | 0.04 | 0.04 | 0.3 | 0.15 | 0.04 | 0.04 | 0.3 | 0.15 | 0.04 | 0.04 | 0.3 | 0.15 | 0.04 | 0.04 |
Delay time | 0.4/1 | ||||||||||||||||
Operational performance (times) | Powered | 1500 | 1000 | 1000 | 1000 | ||||||||||||
Not powered | 8500 | 7000 | 4000 | 4000 | |||||||||||||
Total | 10000 | 8000 | 5000 | 5000 | |||||||||||||
