The NC7 series of AC contactors are mainly used for AC 50Hz (or 60Hz), rated working voltage up to 690V, in AC-3, AC-4 class load under rated working current up to 620A in the circuit, mainly for remote connection and disconnection of circuits, and can be used with appropriate thermal overload relays to form an electromagnetic starter to protect possible operation overload circuits. The contactor is suitable for frequent starting and controlling of AC motors.
The NC7 series AC contactors are designed for use with 50 Hz‑60 Hz AC power up to 690 V and rated currents up to 620 A. They comply with GB 14048.4 and IEC 60947‑4‑1 standards and are suitable for AC‑3 and AC‑4 applications.
The manual provides normal operating conditions, installation requirements, accessory options, and reference tables for various model ratings such as NC7‑205, NC7‑250, NC7‑410, and NC7‑620. This manual is written in Chinese.
| 工作频率 | 50 Hz‑60 Hz |
|---|---|
| 符合标准 | GB 14048.4、 IEC 60947‑4‑1 |
| 工作温度范围 | -5 °C 至 +40 °C |
The operating temperature range is from –5 °C to +40 °C.
They comply with GB 14048.4 and IEC 60947‑4‑1.