Air circuit breaker CHINT NXA series 

Type

Air circuit breakers (ACB)

Number of poles

3P, 4P

Phase array

Reverse phase type (N)RST

Frame size

1600AF, 2000AF, 3200AF, 4000AF, 6300AF

Rated current (In)

400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 3600A, 4000A, 5000A, 6300A

Breaking capacity

50kA, 42kA, 80kA, 65kA, 100kA, 85kA, 120kA

Rated short-circuit breaking capacity (Icu)

50kA at 380VAC, 42kA at 380VAC, 80kA at 380VAC, 65kA at 380VAC, 100kA at 380VAC, 85kA at 380VAC, 120kA at 380VAC

Service breaking capacity - Ics (% Icu)

84%, 100%, 62.5%, 85%, 82%

Line voltage

AC

Rated voltage (Ue)

380VAC, 400VAC, 415VAC, 440VAC, 525VAC, 690VAC

Rated frequency

50/60Hz

Control circuit voltage

220...240VAC

Type of trip unit

Electronic

On/Off control type

Motor operation, Manual operation

Connection type

Busbar terminals

Mounting method

Draw-out horizontal, Fixed horizontal

Overall width

254mm, 324mm, 308mm, 378mm, 374mm, 469mm, 403mm, 498mm, 439mm, 554mm, 463mm, 578mm, 550mm, 700mm, 569mm, 719mm, 897mm, 923mm

Overall height

243.5mm, 331.5mm, 344mm, 430mm, 373.5mm, 499.5mm, 337.5mm, 416mm, 435.5mm, 500mm

Overall depth

318.5mm, 351mm, 400mm, 438.5mm, 399mm, 435.5mm

Representative standard

IEC

Shunt trip (Sold separately)

NXA16-ST-AC380/400/415VTP(R), NXA20/63-ST-AC380/400/415VTP(R)

Under/Over voltage trip (Sold separately)

NXA16-ASUVT-AC380/400/415VTP(R), NXA20/40-UVT-AC380/400V TP(R), NXA20/40-UVTD-AC380/400V TP(R), NXA20/63-ASUVT-380/400/415VAC TP(R)

Auxiliary switch (Sold separately)

NXA16-OF-CO4 TP(R), NXA16-OF-CO6 TP(R), NXA20/40-OF-CO4 TP(R), NXA20/40-OF-CO5 TP(R), NXA20/40-OF-N3 TP(R), NXA20/40-OF-N4 TP(R), NXA20/40-OF-N5 TP(R)

Mechanical interlock (Sold separately)

NXA16-ILK2 TP(R), NXA16-ILK2-F TP(R), NXA20/40-BOARD-ILK2 TP(R), NXA20/40-ILK2 TP(R)

Motor charging(Sold separately)

NXA16-MO-AC380/400/415VTP(R), NXA20-MO-AC380/400/415VTP(R), NXA32-MO-AC380/400/415VTP(R), NXA40-MO-380V~415VAC TP(R)