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Siemens MCCBs

Molded Case Circuit Breaker (MCCB) is a circuit breaker and trip device assembled in a mould case. The case functions as both an outer wrapper and to retain in proper position the breaker’s internal components. Theses cases are made from various types of electrical insulating and fire retardant plastic. MCCB can automatically cut off electric power in case of overload and short circuit. It is meant for higher rated current and is commonly used in Industrial applications.

With the new 3VT circuit breakers, Siemens offers an economic solution for the entire power range from 10 A to 1,600 A – the smart solution to protect plants, capacitors, transformers, generators and motors. Both for infrastructure applications as well as in the area of industrial switchgear technology, 3VT circuit breakers can be used as incoming and outgoing circuit breakers to distribute power in low-voltage switchgear. Available in several design variations, the modular circuit breakers are highly user-friendly, while also offering a high degree of safety and reliability.

3VT moulded-case circuit breakers are an intelligent and cost-effective way to achieve high performance and availability. These 3VT circuit breakers feature a compact design to save space, thanks to the modularity of the circuit breakers ranging from 10 A to 1,600 A. You can choose either thermal-magnetic or microprocessor based trip units. In addition, the entire range has only three families of internal accessories. The result: maximum benefit, minimum expense.

Technical features

  • Rated current range from 16 A to 1,600 A
  • No De-rating up to 50°C
  • Microprocessor based overcurrent trip units from 3VT2 onwards
  • 3- and 4-pole versions
  • Fixed-mounted, plug-in and draw-out versions
  • Wide range of standard external accessories
  • Conforms to the following standards:
    • • IEC 60947-1, IEC 60947-2, IEC 60947-3
    • • IS 13947-1, IS 13947-2, IS 13947-3
  • Line-load reversible
  • Special purpose trip unit for motor & generator protection
  • Undervoltage & shunt trip coil with multiple voltage settings

Please click on individual links below to get more information on Siemens MCCBs.

Siemens MCCBs

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