YCB8-125PV Photovoltaic DC MCB by cncelectric on Sketchfab
| YCB8 | - | 125 | PV | 4P | 63 | DC250 | + | YCB8-63 OF |
| Model | Shell grade current | Usage | Number of poles | Rated current | Rated coltage | Accessories | ||
| Miniature circuit breaker |
125 | PV: heteropolarity Pvn: nonpolarity |
1P | 63A,80A, 100A, 125A |
DC250V | YCB8-125 OF: Auxiliary | ||
| 2P | DC500V | YCB8-125 SD: Alarm | ||||||
| 3P | DC750V | YCB8-125 MX: Shunt | ||||||
| 4P | DC1000V |
Note: The rated voltage is affected by the number of poles and wiring mode.
The single poleis DC250V, the two poles in series are DC500V, and so on.
| Standard | IEC/EN 60947-2 | ||||
| Number of poles | 1p | 2p | 3p | 4p | |
| Rated current of shell frame grade | 125 | ||||
| Electrical performance | |||||
| Rated working voltage Ue(V DC) | 250 | 500 | 750 | 1000 | |
| Rated current In(A) | 63、80、100、125 | ||||
| Rated insulation voltage Ui(V DC) | 1000V | ||||
| Rated impulse voltage Uimp(KV) | 6 | ||||
| Ultimate breaking capacity Icu(kA) | Pv：6 PVn：10 | ||||
| Operation breaking capacity Ics(KA) | PV：Ics=100%Icu PVn：Ics=75%Icu | ||||
| Curve type | li=10ln | ||||
| Tripping type | Thermomagnetic | ||||
| Service life (time) | Mechanical | 20000 | |||
| Electrical | PV：1000 PVn：300 | ||||
| Inline methods | Can be up and down into the line | ||||
| Electrical accessories | |||||
| Auxiliary contact | □ | ||||
| Alarm contact | □ | ||||
| Shunt release | □ | ||||
| Applicable environmental conditions and installation | |||||
| Working temperature(℃) | -35~+70 | ||||
| Storage temperature(℃) | -40~+85 | ||||
| Moisture resistance | Category 2 | ||||
| Altitude(m) | Use with derating above 2000m | ||||
| Pollution degree | Level 3 | ||||
| Protection degree | IP20 | ||||
| Installation environment | Places without significant vibration and impact | ||||
| Installation category | Category III | ||||
| Installation method | DIN35 standard rail | ||||
| Wiring capacity | 2.5-50mm² | ||||
| Terminal torque | 3.5N·m | ||||
Note:
L+power supply positive pole
L-power cathode
Positive pole of circuit breaker
Negative pole of circuit breaker
| Tripping type | DC current | Initial state | Appointed time | Expected results |
| All types | 1.05In | Cold state | t≤2h | No tripping |
| 1.3In | Thermal state | t<2h | Tripping | |
| Ii=10In | 8In | Cold state | t≤0.2s | No tripping |
| 12In | t<0.2s | Tripping |
| Rated current(A) |
Temperature (℃) |
-25 | -20 | -10 | 0 | 10 | 20 | 30 | 40 | 50 | 60 |
| 63A | 77.4 | 76.2 | 73.8 | 71.2 | 68.6 | 65.8 | 63 | 60 | 56.8 | 53.4 | |
| 80A | 97 | 95.5 | 92.7 | 89.7 | 86.6 | 83.3 | 80 | 76.5 | 72.8 | 68.9 | |
| 100A | 124.4 | 120.7 | 116.8 | 112.8 | 108.8 | 104.5 | 100 | 95.3 | 90.4 | 87.8 | |
| 125A | 157 | 152.2 | 147.2 | 141.9 | 136.5 | 130.8 | 125 | 118.8 | 112.3 | 105.4 | |
Current correction factor at different altitudes
| Rated current(A) | Current correction factor | ||
| ≤2000m | 2000-3000m | ≥3000m | |
| 63, 80, 100, 125 | 1 | 0.9 | 0.8 |
Example: If a circuit breaker with a rated current of 100A is used at an altitude of 2500m,
the rated current must bederated to 100A×90%=90A
| Rated current In(A) | Nominal cross-section of copper conductor(mm²) | Maximum power consumption per pole(W) |
| 63 | 16 | 13 |
| 80 | 25 | 15 |
| 100 | 35 | 15 |
| 125 | 50 | 20 |
Accessories
The following accessories are suitable for YCB8-125PV series, which can provide the functions of remote control of circuit breaker, automatic disconnection of fault circuit, status indication (breaking/closing/fault tripping)
a. The total width of the accessories assembled is within 54mm, the order and quantity from left to right: OF, SD(3max)+MX, MX+OF, MV+MN, MV(1max)+MCB; SD can only assemble up to 2 pieces ;
b. Assembled with the body, no tools required;
c. Before installation, check whether the technical parameters of the product meet the requirements of use, and operate the handle to open and close several times to check whether the mechanism is reliable.
Miniature circuit breaker accessories
● Auxiliary contact OF
Remote indication of closing/opening status of circuit breaker.
● Alarm contact SD
When the circuit breaker fault trips, it sends out a signal, together with a red indicator on the front of the device. ● Shunt release MX
When the power supply voltage is 70%~110%Ue, the remote control circuit breaker trips after receiving the signal.
● Minimum making and breaking current: 5mA(DC24V)
● Service life: 6000 times (operating frequency: 1s)
MX+OF Outline and installation dimensions
| Model | YCB8-125 OF | YCB8-125 SD | YCB8-125 MX | |||
| Appearance | ||||||
| Types | ||||||
| Number of contacts | 1NO+1NC | 1NO+1NC | / | |||
| Control voltage(V DC) | 110-415 48 12-24 |
|||||
| Working current of contact | AC-12 Ue/Ie: AC415/3A DC-12 Ue/Ie: DC125/2A |
/ | ||||
| Shunt control voltage | Ue/Ie: AC:220-415/ 0.5A AC/DC:24-48/3 |
|||||
| Width(mm) | 9 | 9 | 18 | |||
| Applicable Environmental Conditions and Installation | ||||||
| Storage temperature(℃) | -40℃~+70℃ | |||||
| Storage humidity | The relative humidity does not exceed 95% when at +25℃ | |||||
| Protection degree | Level 2 | |||||
| Protection degree | IP20 | |||||
| Installation environment | Places without significant vibration and impact | |||||
| Installation category | Category II 、Category III | |||||
| Installation method | TH35-7.5/DIN35 rail installation | |||||
| Maximum wiring capacity | 2.5mm² | |||||
| Terminal torque | 1N·m | |||||
Alarm Contact Outline and installation dimensions
MX+OF Outline and installation dimensions
MX Outline and installation dimensions
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