NM1B Moulded Case Circuit Breaker

Product description：1. Application scope NM1B series moulded case circuit breaker has a rated insulation voltage of 800V suitable for AC 50Hz rated operating voltage of 415V (3P) 230V / 240V (1P) and rated operating current from 10A to 125A in the distribu

1. Application scope

NM1B series moulded case circuit breaker has a rated insulation voltage of 800V, suitable for AC 50Hz, rated operating voltage of 415V (3P), 230V / 240V (1P), and rated operating current from 10A to 125A in the distribution network circuit. It is used to distribute electrical energy and protect lines and the power supply equipment from damages such as overload and short circuit. This circuit breaker has the characteristics of small size and short flashover, and is an ideal product for users. The circuit breaker is installed vertically, and it can also be installed horizontally. The product has isolation function. Standard: IEC 60947-2。

2. Operation and installation conditions

2.1 Setting temperature: + 50℃

2.2 Normal ambient temperature: -25℃～+75℃; Altitude: not exceed 2000m

2.3 Installation environmental conditions: The installation place shall be free of explosion hazards and corrosive gases, and shall be protected from moisture, dust and vibration.

2.4 Pollution grade: Grade 3

2.5 Main circuit installation category: Ⅲ;

2.6 IP grade: IP30;

3. Main Technical Parameters