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What are the differences between the various tripping classes of thermal overload?
There are four classes of thermal overload relay: 10A 10 20 30 These class numbers indicate the trip characteristics from cold state, and should be...
How should I configure the bus communication parameters of an ATS46 equipped with a VW3-G46301 coupler without the PC software?
  This is an obsolete drive and its service life ended in 2007 so all parts for this are now unavailable. The possibility of anyone trying to install...
Which of the SquareD range of pressure switches are still available?
There have been many changes in the manufacturing and supply structure of Square D products since becoming part of Schneider Electric. The Square...
What are the function codes of the Modbus protocol used by IO Scanning in TCP-IP?
The following Modbus protocol function codes are used by IO Scanning on Ethernet TCP-IP:  Read only = function code 03 Write only = function code...
In a star-delta starter, how can I incorporate a thermal overload relay as per Type 1 or Type 2 coordination?
"Only tests carried out by accredited laboratories allow the announcement that a combination of equipment can protect the installation according to...
What is the difference between Pressure transmitters, Universal detectors, Pressure switches and Vacuum switches?
Pressure transmitters Are part of a range of products more properly generically referred to as Pressure Transducers.  They modify or generate an electrical...
How can manual override of an automatic control system be implemented?
There are many instances where it is necessary to have automatic control of a motor and also the provision of a manual override.   A typical automatic...
Can I install spreaders downstream of the Compact NSX.
Yes, it is possible to install all connection accessories both upstream and downstream of the NSX.
How can I obtain the manufacturing date of the Compact NS or NSX circuit-breakers ?
To obtain the manufacturing date of Compact NS or NSX circuit-breakers, read the screen-printed marking at the top of the front panel. The code P07351,...
What is the degree of protection of 27046, 27047 and 27048 rotary handles.
The degree of protection of rotary handles references 27046, 27047 and 27048 is IP40. These rotary handles are designed for C60, C120 and NC100 circuit...
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