TGM3L

Operating Conditions

4.1 Temperature

4.1.1 The ambient air temperature does not exceed +40℃, the lower limit is -5℃, and the mean temperature within 24h does

not exceed +35℃.

4.1.2 Used in special environment: The lower limit of the temperature is not below -25℃, and the upper limit does not

exceed +55℃.

4.1.3 When the ambient temperature is greater than +40℃ or below -5℃, the derating is required according to the

temperature compensation coefficient or contact us.

4.2 Altitude

4.2.1 The altitude at the installation site where the product works normally does not exceed 2000m.

4.2.2 If the altitude exceeds 2000m, the derating is required according to the altitude coefficient or contact us.

4.3 Humidity

4.3.1 The relative humidity of atmosphere does not exceed 50% at the maximum ambient temperature +40℃, and higher

relative humidity can be allowed at lower temperatures

4.3.2 The maximum mean relative humidity does not exceed 90% in the wettest month, and the monthly mean minimum

temperature in that month does not exceed +25℃.

4.3.3 The influence of the condensation occurred on the product surface due to temperature changes on the product

performance shall be considered.

4.4 Pollution degree: 3.

4.5 Installation category: III.

4.6 Installation condition: The vertical inclination of the installed circuit breaker does not exceed 5°.

4.7 External magnetic field: The magnetic field near the circuit breaker installation site shall not exceed 5 times earth’s

magnetic field in any direction