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