Failure phenomenon :
After closing, the switch is open in one phase or two phases
possible reason:
(1) The static contact elasticity disappears, the opening is too large, resulting in poor contact between the moving and static contacts
(2) Fuse blow or virtual connection
(3) Oxygen or static contact oxidation or dust
(4) Poor contact in the switch incoming or outgoing line head
Treatment method:
(1) Trimming or replacing the static contact
(2) Replace the fuse or fasten
(3) Cleaning the contacts
(4) Reconnect
two,
Failure phenomenon :
After the switch is closed, the fuse is blown
possible reason:
(1) External load short circuit
(2) The melt size is too small
Treatment method:
(1) Eliminate the load short circuit fault
(2) Replace the melt as required
three,
Failure phenomenon :
Contact burnout
possible reason:
(1) Switch capacity is too small
(2) The pulling and closing actions are too slow, causing the arc to be too large and burning the contacts.
Treatment method:
(1) Replacement switch
(2) Trimming or replacing the contacts and improving the operation method
Power 30W ,output voltage 3-12V, output current Max 1.2A , USB output 5v 2a, 6 dc tips. We can meet your specific requirement of the products, like label design. The material of this product is PC+ABS. All condition of our product is 100% brand new.
Our products built with input/output overvoltage protection, input/output overcurrent protection, over temperature protection, over power protection and short circuit protection. You can send more details of this product, so that we can offer best service to you!
30W Wall Adapter ,30W Wall Power Supply,30W Power Cord In Wall, 30W Wall Power Adapter
Shenzhen Waweis Technology Co., Ltd. , https://www.waweis.com