NC1 series AC contactors are mainly used in AC 50Hz (or 60Hz), rated working voltage up to 690V, in AC-3 use categories with rated working current up to 95A circuits, for remote connection and disconnection of circuits, and can be used with suitable thermal overload relays to form electromagnetic starters to protect circuits that may be overloaded. The contactor is suitable for frequent starting and controlling of AC motors.
The NC1 series AC contactors are designed for 50 Hz or 60 Hz AC circuits with a rated voltage up to 690 V and a rated current up to 95 A (AC‑3 category). They can be used for long‑distance switching, motor reversal, and can be combined with thermal overload relays to form electromagnetic starters. The series includes reversible contactors with mechanical interlock for reliable conversion.
The manual provides normal operating conditions, installation requirements, detailed dimensions, auxiliary contact options, and ordering instructions. It also lists compatible accessories such as auxiliary contact groups, air‑delay heads, and surge suppressors. This manual is written in Chinese.
| Rated voltage | 690 V |
|---|---|
| Rated current | 95 A (AC‑3) |
| Frequency | 50 Hz or 60 Hz |
| Operating temperature range | -5 °C to +40 °C (average ≤ +35 °C) |
| Maximum installation altitude | 2000 m |
| Pollution degree | Degree 3 |
| Standards compliance | IEC60947‑4‑1, GB14048.4 |
The contactors meet IEC60947‑4‑1 and GB14048.4 standards.
Ambient temperature must be between –5 °C and +40 °C, with a 24‑hour average not exceeding +35 °C.
The contactors are rated for up to 95 A under the AC‑3 usage category.
Units 32 A and below have one pair of either normally open or normally closed auxiliary contacts.