Chint CHNT original NXZHB NXZHM CB class ATS Automatic Transfer Switching Equipment

1.1 Scope of Application

1.1.1 NXZ(H)B/NXZ(H)M Series Automatic Transfer Switching Equipment is applicable to three-phase four-wire duplicate supply grid of AC 50/60Hz, rated voltage 400V/415V and below, rated current 800A, and can switch one or several load circuits from one power source to the other to ensure the normal power supply of the load circuit.

1.1.2 This product is applicable to industrial and commercial power use places, high-rise buildings, and residential houses.

1.2 Applicable standards

1.2.1 Product standard
IEC 60947-1.
IEC 60947-6-1.
1.2.2 Standards for use in extreme environment
IEC 60068-2-1. (Low Temperature)
IEC 60068-2-2. (High Temperature)
IEC 60068-2-30. (Cyclic Damp Heat)
IEC 60068-2-11. (Salt mist)

1.3 Installation category
Installation category of the switching equipment of main
circuit is category IV.
Installation category of auxiliary circuit is category III.
Installation category of conversion controller is category II.

1.4 Utilization category:
NXZB: AC-33iB
NXZ (H) B: AC-33B
NXZ (H) M: AC-33B