About Low-voltage Power Distribution Products

For our reduced-voltage starter, when the starting time is over 15 sec,you need to review the selection of MCS and the wiring between MCD-MCS, and check whet... More Details >>

ACB How to store drawout handle

Set the handle holder to the right side of the drawout frame with the included screw and nut, and store the drawout handle. However, the circuit breaker with... More Details >>

ACB　OCR alarm

It is a standard equipment (automatic reset type) and 30ms of one-pulse is output at overload tripping. Hold-type circuit is necessary since the output time ... More Details >>

Lifetime with SHT or UVT

The number of trip durability by using SHT and UVT is 10% of the opening/closing number including the number of trips by overcurrent, trip button and test bu... More Details >>

F-type and V-type operating handle

Both of F-type and V-type can remotely operate a circuit breaker in the panel board and the design of 800A fame or less are unified. Features are as follows.... More Details >>

AC Breakers used at DC circuit

It is not possible to use a circuit breaker for AC in DC circuit. Since the Arc-Extinguishing Device structure of circuit breaker for DC is different from th... More Details >>

LCD COM is flashing (ME96SS series).

A reason varies with the connection situation of options. (Please refer to the section 6 of the User’s Manual.) In case of MODBUS RTU Error content: ... More Details >>

The power factor does not match the indication values through MODBUS.

Please check the register addresses. The register address for the present value of the power factor of each phase is “0789”. There are the register... More Details >>

Horizontal allowable distance when installing ACB

Flatness of mounting plane: 1 mm or less.In addition, it is necessary to consider the horizontality of the panel. More Details >>

MCB relative humidity

MCB can be used at 85% or less relative humidity and no condensation. More Details >>