Start main contents

Factory Automation

FAQ

Factory Automation

FAQAbout Products

  • Font Size
  • S
  • M
  • L

Keyword Search

You can search two or more words separated by a space. 
 AND : Put a space between the words in a keyphrase.
 OR  : Add a vertical bar ( | ) between the words in a keyphrase.
 NOT : Add a minus sign ( - ) followed by the words that you would like to exclude.

FAQ within [ Molded Case Circuit Breakers ]

21-30 of Total 49

prev 3 / 5page next

  • MCCB Reverse connection

    Almost MCCBs can be connected n reverse. Check the item column of specification table "reverse connection" in the catalog. If it says "Possible", MCCB can be... More Details >>

    • No：22442
    • Release Date：2018/08/31 14:33

  • Inst tripping current value of AC/DC common breaker

    At time-delay tripping zone, it operates with bimetal, therefore the characteristics of AC and DC should be same if the effective values of them are same. Ho... More Details >>

    • No：22392
    • Release Date：2018/08/31 14:33

  • Selective coordination

    It is a protection method which only trips the related circuit breaker and other fault-free circuit does not trip and continues power supply in the event of... More Details >>

    • No：22366
    • Release Date：2018/08/31 14:33

  • 3P MCCB in 1-phase 2-wire circuit

    It is possible. Refer to the figure for connection as below. More Details >>

    • No：24811
    • Release Date：2019/04/09 15:18

  • 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 >>

    • No：22381
    • Release Date：2018/08/31 14:33

  • How to install cassette type accessories

    A circuit breaker shall be Trip position when installing Cassette type accessory. The breaker may be damaged if installing in "ON" or "OFF" position. Moreove... More Details >>

    • No：22422
    • Release Date：2018/08/31 14:33

  • Trip free

    It means that it does not interfere with tripping operation even if a handle is held at "ON" position. (It trips when an overcurrent flows even if a handle i... More Details >>

    • No：22378
    • Release Date：2018/08/31 14:33

  • Max. operational voltage for AC/DC Common

    When it is connected as special connection, AC/DC compatible circuit breaker can be used with DC 250V or more (3-pole type is DC400V and 4-pole type is DC500... More Details >>

    • No：22445
    • Release Date：2018/08/31 14:33

  • LTD operating characteristic

    It is overcurrent tripping characteristic zone which exceeds the rated current and does not exceed short time tripping zone (If without short time tripping ,... More Details >>

    • No：22384
    • Release Date：2018/08/31 14:33

  • MCCB, ELCB and ACB at higher altitudes

    In that case, the rated current and the rated voltage shall be reduced. Refer to the table of derating factors as below. More Details >>

    • No：24801
    • Release Date：2019/04/09 15:17

21-30 of Total 49

Inquiries

Contact Us

page top