STS3 SERIES 3P/4P MCCB is a well-known manufacturer of electrical equipment and its molded case circuit breakers have a wide range of applications in the field of electrical protection. Mccbs are manufactured using advanced technology and high-quality materials, and are characterized by high precision, high reliability, and long life.
Product parameters
Type | Rated current(A) | Pole | Rated insulation voltage(V),Ui(50Hz) | Rated operating voltage(V) | Arc distance (mm) | Ultimate short circuit | Service shortage | operate | |||
Breaking capacity (kA) | circuit | performance | |||||||||
Breaking Capacity(kA) | (endurance) | ||||||||||
STS3-125E | 12.5-125 | 2.3.4 | 660 | 380 | ≤30 | 15 | - | - | 7.5 | 3000 | 7000 |
STS3-125S | 25 | - | 20 | 16 | |||||||
STS3-160S | 16-160 | 0 | 35 | 8 | 20 | 18 | 4000 | 6000 | |||
STS3-160H | 50 | 10 | 40 | 25 | |||||||
STS3-250S | 100-250 | 35 | 10 | 40 | 18 | 2000 | 6000 | ||||
STS3-250M | 50 | 16 | 40 | 30 | |||||||
STS3-250H | 65 | 18 | 40 | 48 | |||||||
STS3-400S | 200-400 | 35 | 16 | 40 | 18 | 1000 | 4000 | ||||
STS3-400M | 50 | 20 | 40 | 30 | |||||||
STS3-400H | 65 | 25 | 40 | 48 | |||||||
STS3-630S | 400-630 | 50 | 20 | 40 | 30 | 1000 | 4000 | ||||
STS3-630M | 65 | 25 | 40 | 48 | |||||||
STS3-630H | 80 | 30 | 40 | 60 | |||||||
STS3-800S | 500-800 | 50 | 20 | 40 | 30 | 1000 | 4000 | ||||
STS3-800M | 65 | 25 | 40 | 48 | |||||||
STS3-800H | 80 | 30 | 40 | 60 |
High performance: STS3 SERIES 3P/4P MCCB have excellent electrical performance, which can quickly cut off the fault current in a short time to protect circuits and equipment from damage.
Multiple Protection Functions: In addition to basic overload and short-circuit protection functions, Square D's molded case circuit breakers also provide additional functions such as earthquake protection to meet the needs of different application scenarios.
Easy to install and maintain: Square D's molded case circuit breakers are well-designed and easy to install, as well as easy to maintain and replace, which reduces users' operation and maintenance costs.
Strong adaptability: Square D's molded case circuit breakers are suitable for a variety of harsh environments, such as high temperature, low temperature, humidity, etc., and are able to maintain stable performance under various extreme conditions.
Square D's molded case circuit breakers are widely used in the electrical systems of residential, commercial and industrial buildings to protect cables, switchboards, motors and other equipment from faults. In addition, they are often used in DC circuits, such as electric vehicle charging piles, etc. Square D's molded case circuit breakers provide reliable electrical protection to ensure the safe and stable operation of power systems.