Our objective is to present premium quality products at aggressive prices, and top-notch services to buyers around the world. We have been ISO9001, CE, and GS certified and strictly adhere to their excellent specifications for China Supplier China Air Circuit Breaker with Under Voltage Trips, Accurate process devices, Advanced Injection Molding Equipment, Equipment assembly line, labs and software progress are our distinguishing feature.
Our objective is to present premium quality products at aggressive prices, and top-notch services to buyers around the world. We have been ISO9001, CE, and GS certified and strictly adhere to their excellent specifications for Air Circuit Breaker, China Circuit Breaker, Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements. We can provided good quality with competitive price for you personally.

Product details

Product summary

YEW1 series Air Circuit Breaker(hereinafter referred to as circuit breaker) is applied in distribution network with AC 50HZ ,rated voltage 690V(or below),and rated current 200A-6300A.It is used to distribute electric energy, protect circuit and power supply from damage of defaults,such as overload,under voltage,short circuit,single-phase grounding.Circuit breaker has intelligent protection function,and its selective protection is accurate.Besides,it can improve the reliability of power supply and avoid unnecessary blackout.At the same time ,it possesses open-type communication interface to realize four-remote function,namely remote control,remote regulating,remote measurement and remote communication,in order to meet the requirement of control center and automatic system.This circuit breaker has isolation function.

Classify

1. Accord to install:Fix type,Drawer type.
2. Accord to pole:3P、4P
3. Accord to operation:Electric operation,Manual operation(Repair,maintenance)

Release

Intelligence controller,under-voltage instant(or delayed)release,shunt release.

Intelligence controller function

1. intelligence controller:H(intelligence type),M(Standard type)、L(Economy type)
2. Have overload long delayed inverse time limit,short delayed inverse time limit,constant time-lag and instant function,it can according to user require to set protect.
3. Single ground protect function.
4. Display function:setting current display,action current display and each line voltage main display(voltage display need ask us when give me the order)
5. Alarm function:overload alarm.
6. Self test function:overheating self test,microcomputer self diagnosis.
7. Test function:intelligent controller of operating characteristic.

Normal use and installation condition

1. Ambient air temperature:upper limit value not exceeding+40℃,lower limiting value not exceeding -5℃,average value not exceeding +35℃.Special orders expected.
2. Install address of altitude not exceeding 2000m.
3. Atmospheric conditions:Atmosphere relative humidity not exceeding 50% when ambient air is +40℃,it can have higher of relative humidity in the lower temperature ,the average max relative humidity is 90% in the max wet month,this month average max temperature is +25℃ at the same time ,it need to think about condensation of product’s surface which will a[[ear with the change of temperature.It need consult with my company when it exceed regulated requirements.
4. Level of protection:IP30.
5. Class of pollution:3 class.
6. Use classes:B classes or A classes.
7. Installation category:Rated operating voltage 660V(690V) and below circuit breakers and undervoltage demerters,power transformer primary coil of installation category isⅣ,other assist circuit,controller installation category is Ⅲ.
8. Installation condition:Breaker need according to this instruction require to install,breaker of vertical gradient not exceeding 5°(mine breaker of vertical gradient not exceeding 15°）Our objective is to present premium quality products at aggressive prices, and top-notch services to buyers around the world. We have been ISO9001, CE, and GS certified and strictly adhere to their excellent specifications for China Supplier China Air Circuit Breaker with Under Voltage Trips, Accurate process devices, Advanced Injection Molding Equipment, Equipment assembly line, labs and software progress are our distinguishing feature.
China Supplier China Circuit Breaker, Air Circuit Breaker, Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements. We can provided good quality with competitive price for you personally.