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| Categories | MCCB Circuit Breaker |
|---|---|
| Brand Name: | SONTUNE |
| Model Number: | STM1 |
| Certification: | CE |
| Place of Origin: | China |
| MOQ: | 1-50pcs |
| Price: | Negotiable |
| Supply Ability: | 5000pcs/day |
| Coil voltage: | AC400(380),AC690(660) |
| In: | 63,100,225,630,800,1000,1250 |
| Breaking Capacity: | 25~100kA |
| Pole: | 3P,4P |
| Credential: | CE |
| Texture: | Plastic |
GENERAL
STM1 Moulded case ciecuit breaker is suitable for circuit AC
50HZ/60HZ, rated voltage up to AC 660V,rated operating current to
630A.It features normal structure,reliable performance,compete
accessories & high breaking capacity, used foe power distribution
and protecting the circuit and electrical equipment against
overload and short circuit. It complies with standard of IEC
60947-2 and GB14048.2
Basic Information
Molded case circuit breakers are a type of electrical protection device that is commonly used when load currents exceed the capabilities of miniature circuit breakers. They are also used in applications of any current rating that require adjustable trip settings, which are not available in plug-in circuit breakers and MCBs.
Specifications
| Frame size rated current(A) | Circuit rated current | Rated current at N-pole | Frame size rated current | Circult rated current | Rated current at N-pole |
| 63 | 10 | 10 | 225 | 100 | 100 |
| 16 | 16 | 125 | 100 | ||
| 20 | 20 | 160 | 100 | ||
| 25 | 25 | 180 | 100 | ||
| 32 | 32 | 200 | 100 | ||
| 40 | 40 | 400 | 225 | 125 | |
| 50 | 50 | 225 | 225 | ||
| 63 | 63 | 250 | 225 | ||
| 100 | 25 | 25 | 315 | 225 | |
| 32 | 32 | 350 | 250 | ||
| 40 | 40 | 400 | 250 | ||
| 50 | 50 | 400 | 250 | ||
| 63 | 63 | 630 | 500 | 315 | |
| 80 | 63 | 630 | 350 | ||
| 100 | 63 |
Molded case circuit breakers are a fundamental component of electrical protection for high-current applications, or whenever adjustable trip settings are required. Adequate sizing and maintenance of an MCCB are key elements in order to guarantee safe and reliable operation in the long term.
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