MKB8-125PV

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.

Technical data

■ Standard □ Optional ─ No

Wiring diagram

Note:
L+power supply positive pole
L-power cathode
Positive pole of circuit breaker
Negative pole of circuit breaker

Overall and mounting dimensions(mm)

Tripping characteristics

Circuit breaker under normal installation conditions and reference ambient temperature (30~35)℃

Curve

Temperature correction factor table
Current correction value for different ambient temperatures

Use of derating table at high altitude
Current correction factor at different altitudes

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

Power consumption per pole of circuit breaker and wiring size

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