FM9H-10KA Industrial Miniature Circuit Breaker 1A To 63A AC 50Hz / 60Hz
FM9H-10KA Miniature Circuit Breaker 1A to 63A AC 50Hz/60Hz
FM9 miniature circuit breaker is mainly used for protection against overload and short circuit under the AC 50Hz/60Hz, rated voltage 230V/400V and rated current from 1A to 63A. It
Application
SM8 series Molded case circuit breaker(hereinafter referred to as MCCB) is the new series MCCB, which is developed strictly according to
international standards and manufactured with advanced technology.
This product complies with IEC60947-2.The MCCB, having rated insulation voltage 500V(lnm ≤ 160A) to(lnm ≥ 250A) is designed to be used for distribution network of having rated current 10A to 1600A, rated operational voltage 380/400V to660/690, intended for power distribution, protection of electricalequipments and circuits against overload, short-circuit and undervoltage, and also for unfrequent switching of electric circuits in mostcases. MCCB with frame rating up to and including 400A can be used for unfrequent starting, and interruption of squirrel cage motors, and for protection of motors against overload, short-circuit and under voltage.
SM8 series circuit breakers can be equipped with electric accessories and mechanical accessories, such as under voltage release, shunt release, auxiliary contacts, alarm contact, electric operating mechanism and rotary mechanical operating handle etc.
SM8 series intelligent molded case circuit breakers are equipped with electronic release with the function of protection of electric circuits and equipments not only against overload, short-circuit and under voltage, but also against earthing failure. The intelligent functions of it are: current failure; output of over-current signal and monitoring of circuit breaker open/close, particularly, the intelligent trip unit is designed with interface available for remote measuring, remote adjusting, remote controlling and remote communicating between circuit breakers and computers.
Technical features
- With indicator function in the contact position
- Transparent cover designed to carry a label
- Bilateral busbar wiring capabilities to adapt to the wider use of premises
- Maximum connecting ability of 25mm², wiring torque 3N*m, applicable to a variety of installing equipment
| Electrical features | |
| Rated current In | 1-63A |
| Poles | 1P 2P 3P 4P |
| Rated voltage Ue | 1P: 230/400V~ 2/3/4P:400V~ |
| Insulation voltage Ui | 500V |
| Rated frequency | 50/60Hz |
| Rated breaking capacity | 10kA |
| Rated impulse withstand voltage(1.2/50) Uimp | 6kV |
| Dielectric test voltage at and ind. freq.for 1min | 2kV |
| pollution degree | 2 |
| Thermo-magnetic release characteristic | B,C,D |
| Electrical life | 8000 |
| Mechanical life | 10000 |
| Contact position indicator | Yes |
| Installation | |
| Protection degree | IP20 |
| Reference temperature for setting of thermal element | 30℃ |
| Storage temperature | -25~+70℃ |
| Terminal Connection type | Cable/ U-type Busbar/Pin-type busbar |
| Terminal size top/bottom for cable | 25mm² 18-3 |
| Tightening torque | 3.0N |
| Connection | Top and bottom |
| Combination with accessories | |
| Auxiliary contact | Yes |
| Alarm contact | Yes |
| Shunt release | Yes |
| Under voltage release | Yes |
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