| YCB8 | - | 63 | PV | 4P | C | 20 | DC250 | + | YCB8-63 OF |
| Model | Shell grade current | Usage | Number of poles | Tripping characteristics | Rated current | Rated voltage | Accessories | ||
| Miniature circuit breaker | 63 | PV: heteropolarity PVn: nonpolarity |
1P | B C K |
1A, 2A, 3A....63A | DC250V | YCB8-63 OF: Auxiliary | ||
| 2P | DC500V | YCB8-63 SD: Alarm | |||||||
| 3P | DC750V | YCB8-63 MX: Shunt release | |||||||
| 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.
| Standards | IEC/EN 60947-2 | ||||
| Number of poles | 1P | 2P | 3P | 4P | |
| Rated current of shell frame grade | 63 | ||||
| Electrical performance | |||||
| Rated working voltage Ue(V DC) | 250 | 500 | 750 | 1000 | |
| Rated current In(A) | 1、2、3、4、6、10、16、20、25、32、40、50、63 | ||||
| Rated insulation voltage Ui(V DC) | 1200 | ||||
| Rated impulse voltage Uimp(KV) | 4 | ||||
| Ultimate breaking capacity Icu(KA)(T=4ms) | 6 | ||||
| Operation breaking capacity Ics(KA) | Ics=100%Icu | ||||
| Curve type | B, C, K | ||||
| Tripping type | Thermomagnetic | ||||
| Service life (time) |
Mechanica | 20000 | |||
| Electrical | PV：1500 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 II 、Category III | ||||
| Installation method | DIN35 standard rail | ||||
| Wiring capacity | 2.5-25mm² | ||||
| Terminal torque | 3.5N·m | ||||
■ Standard □ Optional ─ No
Note:
L+power supply positive pole ⊕Positve pole of circuit breaker
L-power cathode ⊖Negative pole of circuit breaker
Please place a note for other wiring methods while placing an order.
Current correction value used in different environments
| Rated current(A)Current correction value(A)Environmental temperature(℃) | -35 | -30 | -20 | -10 | 0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 |
| 1 | 1.3 | 1.26 | 1.23 | 1.19 | 1.15 | 1.11 | 1.05 | 1 | 0.96 | 0.93 | 0.88 | 0.83 |
| 2 | 2.6 | 2.52 | 2.46 | 2.38 | 2.28 | 2.2 | 2.08 | 2 | 1.92 | 1.86 | 1.76 | 1.66 |
| 3 | 3.9 | 3.78 | 3.69 | 3.57 | 3.42 | 3.3 | 3.12 | 3 | 2.88 | 2.79 | 2.64 | 2.49 |
| 4 | 5.2 | 5.04 | 4.92 | 4.76 | 4.56 | 4.4 | 4.16 | 4 | 3.84 | 3.76 | 3.52 | 3.32 |
| 6 | 7.8 | 7.56 | 7.38 | 7.14 | 6.84 | 6.6 | 6.24 | 6 | 5.76 | 5.64 | 5.28 | 4.98 |
| 10 | 13.2 | 12.7 | 12.5 | 12 | 11.5 | 11.1 | 10.6 | 10 | 9.6 | 9.3 | 8.9 | 8.4 |
| 13 | 17.16 | 16.51 | 16.25 | 15.6 | 14.95 | 14.43 | 13.78 | 13 | 12.48 | 12.09 | 11.57 | 10.92 |
| 16 | 21.12 | 20.48 | 20 | 19.2 | 18.4 | 17.76 | 16.96 | 16 | 15.36 | 14.88 | 14.24 | 13.44 |
| 20 | 26.4 | 25.6 | 25 | 24 | 23 | 22.2 | 21.2 | 20 | 19.2 | 18.6 | 17.8 | 16.8 |
| 25 | 33 | 32 | 31.25 | 30 | 28.75 | 27.75 | 26.5 | 25 | 24 | 23.25 | 22.25 | 21 |
| 32 | 42.56 | 41.28 | 40 | 38.72 | 37.12 | 35.52 | 33.93 | 32 | 30.72 | 29.76 | 28.16 | 26.88 |
| 40 | 53.2 | 51.2 | 50 | 48 | 46.4 | 44.8 | 42.4 | 40 | 38.4 | 37.2 | 35.6 | 33.6 |
| 50 | 67 | 65.5 | 63 | 60.5 | 58 | 56 | 53 | 50 | 48 | 46.5 | 44 | 41.5 |
| 63 | 83.79 | 81.9 | 80.01 | 76.86 | 73.71 | 70.56 | 66.78 | 63 | 60.48 | 58.9 | 55.44 | 52.29 |
| Tripping type | Rated current(A) | Current correction factor | Example | ||
| ≤2000m | 2000-3000m | ≥3000m | |||
| B、C、K | 1, 2, 3, 4, 6,10, 13, 16, 20, 25,32, 40, 50, 63 | 1 | 0.9 | 0.8 | The rated current of 10A products is 0.9× 10=9A after derating at 2500m |
Wiring capacity
| Rated current In(A) | Nominal cross-sectional area of copper conductor(mm²) |
| 1~6 | 1 |
| 10 | 1.5 |
| 13、16、20 | 2.5 |
| 25 | 4 |
| 32 | 6 |
| 40、50 | 10 |
| 63 | 16 |
| Rated current In(A) | Maximum power consumption per stage(W) |
| 1~10 | 2 |
| 13~32 | 3.5 |
| 40~63 | 5 |
The following accessories are suitable for YCB8-63PV 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+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.
●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)
Overall and mounting dimensions(mm)
OF/SD Outline and installation dimensions
MX+OF Outline and installation dimensions
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