1.USAGE
YGL series Isolator(Load isolation switch)apply to AC 50Hz,rated voltage below 400V.Rated current is 3150A.It is suitable for connecting and breaking the infrequent electriccircuit or electric isolation in power system.This product comply with IEC60947-3.

2.ENVIRONMENTAL CONDITIONS
□ Altitude not exceed 2000m.

□ Ambient air temperature is not higher than+40℃ and not lower than-5℃.And the
average temperature value of 24 hours is not higher than+35℃.
□ When the maximum temperature up to+40℃,air relative humidity should not larger
than 50%.In the lower temperature,it allows to have a higher relative humidity,butshould take measure when temperature occasionally change or turn thecondensation.
□No explosion hazard medium environment.

□ Pollution is 3 class.

3.Technical parameter

4.STRUCTURAL FEATURES
4.1Switch adopt elastic-accumulating mechanism for instant release realizes the rapidmaking and breaking.Have no relationship with the speed of the operation handle andincreasing greatly the capability of extinguishing electric arc.
4.2 The shell made of unsaturated polyester resin reinforced by fiberglass possessexcellent performance of flame resistant,dielectric performance,safe operation,resistcarbonic performance and resist impact performance.
4.3Switch have 3Pand 4P(3P+Neutral pole)
4.4 Mark wndow is set in the front side toindicate ON and OFF state of contact.
4.5 Operation handle can installed directly in the middle of the switch is insideoperation.And also can additional longer handle installed outside of the distribution boxdoor.It call outside operation.
4.6 According to the need,can supply normal open and normal closing auxiliary contactand install special base board,the front and behind connection type,to meet clientneed.
4.7 When in disconnect position0°,can use two or three locked the handle to avoidmisoperation.

5.STRUCTURE AND CHARACTER
The Switch shell is manufactured with unsaturated polyester resin reinforced byfberglass plastic(DMC).Spring energy storage and Speed institutions can quicklyachieve connected with the breaker or disconnected with the break The structure of thecontact is parallel double breakpoint two separate head,and ensure the contactpressure by shape spring;Switch can automatically determine the limit position of onand off,and has the obvious On-off tag to indicate the on and off position.