MCB Mini Circuit Breaker

HL321 -63 isolating switch (hereinafter referred to as the switch) is suitable for the resistance circuit of AC50/60Hz. rated voltage 230V. rated current up to 63A, to make or break the circuit under no-load conditions. It is mainly used for making or isolating the circuit and power supply. Especially, it is applicable for isolating the power supply when the circuit is being repaired to prevent the accidental closing operation, so as to ensure the operator's safety. The switch accords to the standards like GB14048.3 and IEC60947-3. 1. Ambient air temperature: -5℃+40℃, the average value shall notexceed 35 ℃Within 24h 2. Altitude: not more than 2, 000m 3. The air relative humidity shall not exceed 50% at +40℃ the higher relative humidity is allowable at the lower temperature, for example, 90% at 20℃ 4. Pollution class: 3 5. Installation category: Il and Ill 6. Application category: AC-20A 7. Installation conditions: The isolating switch shall be installed vertically (the top is for wire incoming), the handle upward direction means the closing position, and, the contact is switched on: the handle downward direction means the contact is switched off, at this moment, the handle shall be fastened, to prevent the accidental closing operation 8. Installation mode: TH35-7.5 type steel mounting rail is used 9. Connection mode: The wire is crimped with the screws the torsion torque is 2.0N. m Specifications 1. It is divided into 32A and 63 A according to the rated working current le 2. It is divided into single pole and two poles according to the number of pole. 3. Its rated frequency is 50/60HZ Basic parameters and main performance 1. Rated working voltage Ue 230V 2. Rated working current le 32A and 63A 3. Rated short-time withstand current Icw 12le(switch on time is 1s) 4. Rated short-circuit making capacity Icm 20le(switch on time is 0. 1s) 5. Rated impulse withstand voltage Uimp (1. 2/50u S 2000m) 4Kv 6. Operation performance: 8500 times under no-load conditions, 1500 times under load conditions, total 10000 times, the operation frequency is 120 times/hour. 7. at power factor cos o=0. 65, the switch can make and break 3le(1.05Ue), And has 5 proper over-load operations(the interval is 30s)