Zhejiang KRIPAL Electric Co., Ltd.
Zhejiang KRIPAL Electric Co., Ltd 30 years experience in manufacturing ac contactor, rotary isolator switch, industrial plug socket, molded case circuit breaker and etc
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UKM32 series photovoltaic special DC molded case circuit breaker is suitable for DC grid circuit with rated voltage up to DC1200V and rated current of 250A. DC circuit breaker has overload long delay protection, short circuit instantaneous protection function , used to distribute electric energy and protect circuit and the power supply equipment is protected from the danger of overload, short circuit, etc.
The operating mechanism of the DC circuit breaker has the functions of quick closing and fast reading segmentation, compact structure, small size and convenient use.
| Type | UKM32-160 | UKM32-250 | UKM32-630 | UKM32-1250 | ||||||||
| Frame size | [AF] | 160 | 250 | 630 | 1250 | |||||||
| Rated curent,ln | [A] | 16,20,25,32,40,50 63,80,100,125,160 | 40,50,63,80 100,125,160,200,250 | 300,400,500,630 | 800,1000,1250 | |||||||
| No.of poles | 2*,3,4 | 2*,3,4 | 2*,3,4 | 3 | ||||||||
| Rated operational voltage,Ue | AC [V] | 690 | 690 | 690 | 690 | |||||||
| DC [V] | 500 | 500 | 500 | 500 | ||||||||
| Rated impulse withstand volatge,Uimp | [kV] | 8 | 8 | 8 | 8 | |||||||
| Rated insulationvoltage,Ui | 750 | 750 | 750 | 750 | ||||||||
| Rated ultimate short-circuit breaking capacity,lcu | [V] | N | H | L | N | H | L | N | H | L | N | H |
| AC 50/60Hz 220/240V | [kA] | 85 | 100 | 200 | 100 | 120 | 200 | 100 | 120 | 200 | 85 | 85 |
| 380/415V | [kA] | 50 | 85 | 150 | 50 | 85 | 150 | 65 | 85 | 150 | 50 | 70 |
| 440/460V | [kA] | 50 | 70 | 130 | 50 | 70 | 130 | 65 | 85 | 130 | 50 | 65 |
| 480/500V | [kA] | 30 | 50 | 65 | 42 | 65 | 85 | 42 | 65 | 85 | 40 | 50 |
| 660/690V | [kA] | 5 | 8 | 10 | 10 | 15 | 20 | 10 | 20 | 35 | 30 | 42 |
| DC 250V | [kA] | 42 | 65 | 100 | 50 | 85 | 100 | 50 | 85 | 100 | ||
| DC(2poles in series) 500V | [kA] | 42 | 65 | 100 | 50 | 85 | 100 | 50 | 85 | 100 | 20 | 20 |
| Rated short-circuit making capacity lcm | ||||||||||||
| AC 50/60Hz 220/240V | [kA] | 187 | 220 | 440 | 220 | 264 | 440 | 220 | 264 | 440 | 63 | 63 |
| 380/415V | [kA] | 105 | 187 | 330 | 105 | 187 | 330 | 143 | 187 | 330 | 37.5 | 52.5 |
| 440/460V | [kA] | 105 | 154 | 286 | 105 | 154 | 286 | 143 | 187 | 286 | 37.5 | 48.5 |
| 480/500V | [kA] | 63 | 105 | 143 | 88 | 143 | 187 | 88 | 143 | 187 | 30 | 37.5 |
| 660/690V | [kA] | 8 | 14 | 17 | 17 | 30 | 40 | 17 | 40 | 74 | 22.5 | 31.5 |
| Use category | A | A | A | A | ||||||||
| Implementation of standards | IEC60947-2 | IEC60947-2 | IEC60947-2 | IEC60947-2 | ||||||||
| Mechanical Life (Number of operations) | 25000 | 25000 | 20000 | 10000 | ||||||||
