Nader Circuit Breaker

Features of NDQ3 Series

• Dedicated excitation-type product, available in both two-position and three-position types.
• Adopts a snap-action moving and fixed contact structure for high electrical performance. The two-position type uses a single-pole double-throw structure, forming its own mechanical interlock to completely prevent simultaneous closing of two power sources.
• Driven by an electromagnetic coil, completing the transfer action instantly upon pull-in, with millisecond-level switching speed.
• Available with both integrated and split-type controllers, meeting the needs of different application scenarios.

Technology data of NDQ3 Series

Model	NDQ3
Frame size rated current	100、125、160、250、400、630、800、1250、1600、2000
Electrical class	PC
Number of poles	2、3、4
Controller:	Integrated type, split type
Product certification	CCC、CB

Notes:
1. NDQ3-100–800 frame sizes are available with both integrated and split-type controllers, while NDQ3-1250/1600/2000 frame sizes are only available with split-type controllers.
2. The CE and TUV certificates for NDQ3 products are only applicable to the 100/160/630/1250/2000 frame sizes.