What to do if LEGRAND DMX3 1600 Circuit breakers ACB trips after closing?
If your LEGRAND Circuit breaker trips after closing, it could be due to a couple of reasons. If it trips after a few seconds or minutes, there may be an overload fault. Inspect the unit protection to identify the fault and then resolve the cause. Alternatively, the Shunt Release may be continuously receiving a command. In this case, verify the source of the command.
Why LEGRAND DMX3 1600 ACB does not close on pressing “ON” button?
If your LEGRAND Circuit breakers ACB does not close when you press the “ON” button, it could be due to several reasons. First, the U/V release might be present but not energized; in this case, you should energize the U/V release. Second, the mechanism spring might not be charged; charge it manually until the spring status indicator turns yellow. Third, the reset button might be ejected; press the reset button. Finally, the mechanical interlock might be disabling closing; recheck before trying to close the breaker.
Why LEGRAND DMX3 1600 Circuit breakers ACB does not close electrically?
If the LEGRAND Circuit breakers ACB does not close electrically, it means that the “Ready to close” (RTC) conditions are not being met. You should check all RTC conditions to resolve this issue.
How to fix LEGRAND Circuit breakers that can not be driven in Test and Service position?
If the breaker cannot be driven into the Test and Service position, it is possible that the breaker and miss insertion device ratings do not match. Ensure that you put the correct breaker in place.
General| Brand | LEGRAND |
|---|---|
| Model | DMX3 1600 |
| Category | Circuit breakers |
| Language | English |
Details net weights for fixed and draw-out circuit breakers and switch disconnectors by poles.
Provides dimensional data (width, depth, height) for the fixed version, 3-pole circuit breakers.
Provides dimensional data (width, depth, height) for the fixed version, 4-pole circuit breakers.
Provides dimensional data (width, depth, height) for the draw-out version, 3-pole circuit breakers.
Provides dimensional data (width, depth, height) for the draw-out version, 4-pole circuit breakers.
Highlights safety warnings for handling heavy equipment and proper lifting techniques.
Lists general electrical and mechanical specifications for DMX3 breakers according to IEC60947-2.
Presents technical specifications for switch disconnectors according to IEC60947-3.
Details mounting dimensions and fixing points for the fixed version, 3P and 4P.
Shows dimensions and layout for horizontal terminals on a 3-pole draw-out version breaker.
Shows dimensions and layout for vertical terminals on a 3-pole draw-out version breaker.
Shows dimensions and layout for horizontal terminals on a 4-pole draw-out version breaker.
Shows dimensions and layout for vertical terminals on a 4-pole draw-out version breaker.
Details bar connection dimensions ('X' max) based on Icc for fixed version breakers.
Illustrates terminal adaptor connections and bar dimensions ('X' max) for draw-out version.
Presents the electrical diagram for 3-pole DMX3 breakers.
Presents the electrical diagram for 4-pole DMX3 breakers.
Explains how to set protection levels using rotary knobs and a screwdriver.
Lists essential checks for the operator before energizing the device.
Outlines steps to identify the cause and restore the breaker after a trip.
Addresses common ACB closing problems and their solutions.
Addresses common ACB tripping problems and overload faults.
To Next Page
