YRM1Z DC series non-polar photovoltaic molded case circuit breaker (MCCB) is mainly used in large-scale solar power generation systems.
Small size, high segment capacity, short flashover, anti-vibration. Used for energy storage batteries, solar DC combiner boxes, inverters, and DC power distribution cabinets.
Function:
| YRM1Z-125(size): 63A,80A,100A,125A | Tested:Ultimate short circuit breaking capacity | |
| Loadable:string protection upto | 25kA according to IEC IEC60947-2 | |
| YRM1Z-125(size): 63A,80A,100A,125A | YRM1Z-630(size): 500A,630A | Fast: reclosable for minimum standstill times |
| YRM1Z-250(size): 160A,200A,225A,250A | YRM1Z-800(size): 800A | Safe: reliable disconnector properties switching underload |
| YRM1Z-400(size): 315A,400A | YRM1Z-1250(size): 1000AJ250A | ApprovaI:Provided on request |
Specifications:
| Rated Current In (A) | 125:63A,80A,100A,125A,250:160A,200A,225A,250A,400:315A,400A:630:500A,630A,800:800A,1250:1000A1250A |
| Ue Rated operating voltage (VDO) | YRM1Z:1P 250V: 2P 550V; 3P 750V;4P 1000V |
| Rated insulation voltage Ui (VDC) | DC1000V |
| Rated lmpact voltage Uimp (kV) | 8KV |
| Ultimate breaking capacity lcu (kV) | 25KV |
| Trip type | Thermal-magnetic |
| Ambient temperature (P) | -20°C ~70°C |
| Altitude | 2000M |
| Installation | Fixed,plug-in |
| Accessories | Auxiliary AlarmShunt release,Manually operated and electric operation |
Wiring digaram:
| Protection and lsolation wiring | Protection and lsolation wiring |
| The load should be | The load should besDC 1 000V |
| The connection considered for a network in which | The Negative pole (-) could be earthed.but in both cases |
| the middle point of the supply source is earthed | the breaker protects and isolates the load |
| In this case the breaker protects and isolates the load |













