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Schneider Electric's Masterpact NW is an intelligent frame circuit breaker (ACB) for medium and low voltage main power distribution. It is compatible with AC 50/60Hz systems up to 690V, with a rated current of 800-6300A, a breaking capacity of 42-150kA, 3P/4P configuration, fixed/removable installation, equipped with a Micrologic electronic trip unit, and supports three-stage/four-stage protection, power measurement and communication. It is suitable for main incoming lines, busbar connections and high-capacity load protection in industrial, commercial and public buildings, data centers, infrastructure and other applications.
Siemens 3VC is a new generation of compact molded case circuit breakers (MCCBs) suitable for AC 50/60Hz, 400V/690V systems, with rated current of 1-630A, breaking capacity of 8-55kA, 3P/4P configurations, fixed/plug-in installation, and three tripping methods: thermal-magnetic, single-magnetic, and electronic. It is suitable for low-voltage power distribution and motor circuits in industrial, commercial, and infrastructure sectors. The full series will be available in 2024.
The Siemens SENTRON 3VM is a compact thermal-magnetic molded case circuit breaker (MCCB) suitable for AC 50/60Hz systems up to 500V/690V (Ui), with rated current of 1-630A, breaking capacity of 16-55kA, 3P/4P configurations, fixed/plug-in installation, full range of thermal-magnetic tripping, modular universal accessories, and suitable for secondary power distribution and motor/transformer protection in small and medium-sized factories, commercial and public buildings, infrastructure, and residential buildings. (Siemens (China) Co., Ltd.)
The Siemens SENTRON 3VT is an economical and reliable standard molded case circuit breaker (MCCB) suitable for AC 50/60Hz systems up to 690V, with a rated current of 10-1600A, a breaking capacity of 25-50kA, 3P/4P configurations, and supports fixed/insertion/removable installation. It offers optional thermal-magnetic (TM) or electronic (ETU) tripping, modular accessories, and is suitable for secondary power distribution and motor/transformer/capacitor protection in industrial, commercial, and infrastructure applications.
The Siemens SENTRON 3WL is a modular intelligent frame circuit breaker (ACB) suitable for AC 50/60Hz systems up to 690V (1000V for special versions). It has a rated current of 630-6300A, a breaking capacity of 55-150kA, 3P/4P configurations, supports fixed/removable installation, and comes standard with an electronic trip unit (ETU). It features complete communication and measurement functions and is suitable for primary/secondary incoming line, bus tie, and feeder protection in industrial, commercial, and energy infrastructure projects, meeting the needs of selective coordination and intelligent management.
The Siemens SENTRON 3WT is a compact intelligent frame circuit breaker (ACB) suitable for AC 50/60Hz, 400/500/690V systems, with a rated current of 400-4000A and a maximum breaking capacity of 66kA. It is available in two frame types and 3P/4P configurations, with fixed/drawn-out mounting. It comes standard with an ETU37WT/38WT electronic trip unit, supports Modbus communication and full-capacity measurement, and is suitable for main incoming lines, bus couplers, and high-capacity feeders in industrial, commercial, and infrastructure applications, balancing selective protection with cost optimization.
The Siemens SENTRON 5SY4 is a compact miniature circuit breaker (MCB) suitable for AC 50/60Hz, 230/400V systems. It has a rated current of 0.3-63A, a breaking capacity of 5-15kA (IEC 60898), and is available in 1P/1+N/2P/3P/3+N/4P configurations. It features thermal-magnetic tripping (B/C/D curves), modular DIN rail mounting, high protection, and tool-free installation. It is suitable for terminal circuits, lighting, sockets, control circuits, and small motor protection in industrial, commercial, and residential buildings, balancing personal safety and system stability.
