MKB8-63PV

Product Details

General

The rated operating voltage of MKB8-63PV series DC miniature circuit breakers can reach DC1000V, and the rated operating current can reach 63A, which are used for isolation, overload and short circuit protection. It is widely used in photovoltaic system， and can also be used in industrial, civil, communication and other DC systems to ensure the reliable operation of systems.
Standard: IEC/EN 60947-2, EU ROHS environmental protection requirements.

19.2

Features

● Modular design, small size;
● Standard Din rail installation, convenient installation;
● Overload,short circuit, isolation protection function, comprehensive protection;
● Current up to 63A, 14 options;
● The breaking capacity reaches 6KA, with strong protection capacity;
● Complete accessories and strong expansibility;
● Multiple wiring methods to meet various wiring needs of customers;
● The electrical life reaches 10000 times, which is suitable for the 25-year lifecycle of photovoltaic.

Selection

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 ⊕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.

Overall and mounting dimensions(mm)

Curve

Temperature correction factor table
Current correction value used in different environments

Use of derating table at high altitude

Recommended wiring size

Wiring capacity

Power consumption per pole of circuit breaker

Accessories

The following accessories are suitable for MKB8-63PV 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.

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)