Home > Circuit Breaker
1.General
1.1 Application
Personnel and fire protection
Cable and line protection against overload and short circuits
1.2 General rules for choosing RCBO:
a.Rated residual operating current
I△n≤30 mA:additional protection in the case of direct contact
I△n≤300 mA:preventative fire protection in the case of ground fault currents
b.Tripping class
AC class - Tripping is ensured for sinusoidal,alternating currents,whether they be quickly applied or slowly increase.
A class - Tripping is ensured for sinusoidal,alternating residual currents as well as for pulsed DC residual currents,whether they be quickly applied or slowly increase.
c.Tripping curve
C curve (5-10 In) protection and control of the circuits against overloads and short-circuits;protection for resistive and inductive loads with low inrush current.
D curve (10-14 In) protection and control of the circuits against overloads and short-circuits;protection for resistive which supply loads with high inrush current at the circuit closing(LV/LV transformers,breakdown lamps).
2. Technical Data
2.1 Curves
|
Standard |
IEC/EN 61009-1 |
|
Electrical features |
Type(wave form of the earth leakage sensed) |
|
AC |
Thermo-magnetic release characteristic |
|
C,D |
|
Rated current In |
A |
6,10,16,20,25,32,40,50,63 |
|
Rated voltage Ue |
V |
230/400 |
|
Rated sensitivity I△n |
A |
0.03,0.1,0.3 |
|
Rated residual making and breaking capacity I△m |
A |
500 |
|
Rated short-circuit capacity Icn |
A |
4,500/6,000 |
|
Break time under I△n Rated frequency |
S |
≤0.1 |
|
Hz |
50/60 |
||
Rated impulse withstand voltage (1.2/50)Uimp |
V |
4,000 |
|
Dielectric test voltage at ind.Freq.for 1 min |
kV |
2 |
|
Insulation voltage Ui |
|
500 |
|
Pollution degree |
|
2 |
|
Mechanical features |
Electrical life |
|
2000 |
Mechanical life |
|
2000 |
|
Contact position indicator |
|
Yes |
|
Protection degree |
|
IP20 |
|
Ambient temperature (with dally average≤35℃) |
℃ |
-5...+40(Special application please refer to P65 for temperature compensation correction) |
|
Storge temperature |
℃ |
-25...+70 |
|
Installation |
Terminal connection type |
|
Cable/U-type busbar/Pin-type busbar |
Terminal size top/bottom for cable |
mm2 |
25 |
|
AWG |
18-3 |
||
Terminal size top/bottom for busbar |
mm2 |
25 |
|
AWG |
18-3 |
||
Tightening torque |
N*m |
2 |
|
In-Ibs. |
18 |
||
Mounting |
|
On DIN rail EN 60715 (35mm) by means of fast clip device |
|
Connection |
|
From top and bottom (for combined type) |
|
|
From top (MCB+add-on RCB block) |
2.3 Temperature derating
Temperature | -15℃ | -5℃ | 0℃ | 10℃ | 20℃ | 30℃ | 40℃ | 55℃ |
Temperature compensation coefficient of rated current | 1.19 | 1.15 | 1.13 | 1.06 | 1.05 | 1 | 0.96 | 0.89 |
3. Overall and Mounting Dimensions(mm)
3.1 MCB+add-on RCD block
Number of poles | In=6~32A | In=40~63A | ||||
L(mm) | H(mm) | B(mm) | L(mm) | H(mm) | B(mm) | |
1P+N | 45 | 74 | 27 | 54 | 74 | 36 |
2P | 63 | 77.8 | 27 | 72 | 77.8 | 36 |
3P | 90 | 77.8 | 36 | 103.5 | 77.8 | 49.5 |
3P+N | 99 | 77.8 | 45 | 117 | 77.8 | 63 |
4P | 117 | 77.8 | 45 | 135 | 77.8 | 63 |
Contact: Mr. Zhao
Phone: 086 13868719385
Tel: 086-577-27880251
Email: lind@meiyuyuan.com
Add: 41# sanliyi road, Wenzhou, Zhejiang China