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CHINT 149857 ā G NM8-1250S/800/3
3P molded case circuit breaker, 800A rated current, 50kA Icu, 50% Ics, thermal-magnetic fixed type, suitable for large-scale distribution boards and medium fault-level installations.
š¹ Description (English):
The CHINT 149857 ā G NM8-1250S/800/3 is a high-capacity molded case circuit breaker (MCCB) designed for protecting large power distribution systems. Rated at 800A, with a breaking capacity of 50kA (Icu) and operational breaking capacity (Ics) of 50%, it provides dependable protection in industrial and commercial setups. The unit integrates a fixed thermal-magnetic trip mechanism, ensuring reliable performance under overload and short-circuit conditions. With its 3-pole construction and compliance with IEC 60947-2, it is ideal for high-load circuits in substations and energy control panels.
š¹ Key Features:
⢠Rated current: 800A
⢠Breaking capacity: 50kA (Icu), 50% Ics
⢠Thermal-magnetic fixed protection
⢠3-pole design for high-load balancing
⢠Suitable for substations and main power boards
⢠IEC 60947-2 compliant
⢠DIN rail or panel mountable
š¹ Technical Specifications (English):
Parameter Value
Model G NM8-1250S/800/3
Part Number CHINT 149857
Rated Current 800A
Number of Poles 3P
Breaking Capacity Icu: 50kA, Ics: 50%
Trip Unit Type Thermal-Magnetic (Fixed)
Application Industrial / Commercial
Mounting Type DIN rail or Panel Mount