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Normal opeartion and installation conditions -Ambient air temperature: The upper limit shall not exceed +4090 and the lower limit shall be -5C, and the average temperature in 24 hours shall not exceed +35CC. Notes: Where the lower limit of the opeartion conditions is -10 C or -25 9C, the user should state it to the Company; where the upper limit is above +409C or lower than -10 CC or -25C, the user should consult with the Company; -The altitude of the installation site shall not exceed 2000m. -Atmospheric conditions The relative humidity of the atmosphere is no more than 50% when the ambient air is at +40 0 C, and a higher relative humidity is allowable at a lower temperature. The maximum relative humidity of the wettest month is 90% and the average minimum temperature of that month is + 25 0 C, and the condensation that occurs on the surface of the product due to temperature changes is taken into account. If the conditions are beyond the specified requirements, consult with the Company. -Protection Degree: IP30 -Pollution Degree: Class 3 -Use category: Class B or Class A. -Installation category Circuit breakers and under-voltage trip units with a rated voltage of 660V (690V) and below, the installation type of the primary coil of power transformer is IV, and the installation type of auxiliary circuit and control circuit is III. -Installation conditions The circuit breaker shall be installed in accordance with the requirements of this manual. The vertical gradient of the circuit breaker shall not exceed 5 0 (the gradient of the mine circuit breaker shall not exceed 15 6 ).
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Q1: Are you a factory or trading company A1: We are a factory, we can guarantee our price is first-hand, very cheap and competitive.
Q2: How does your factory do regarding quality control? A2: All the products will be 100% checked before the shipment.
Q3: When can I get the price? A3:Usually we quote within 24 hours after we get your inquiry.
Q4: How could I get a sample? A4: if you can not buy our product in your local area, we will ship a sample to you.You will be charged a sample price plus all related shipping costs.Express delivery charge depends on the quantity of the samples.
Q5: What is the price of shipping? A5: Depending upon the port of delivery, prices varies.