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What is the response time of residual current devices
The response time of a residual current device is the time between the appearance of a dangerous leakage current and circuit power down. Please find...
Is it possible to change the keylock for Spacial SF with Ronis key 455?shall I order the adapter NSYLADP?
In order to change the keylock for Spacial SF with Ronis key 455,thanks to order reference NSYIN4551 only,as with handle NSYSFHS1 no need to order...
What is the function of Masterpact Earthing switch and how to guarantee operator safety ?
The earthing switch is used to interconnect and earth the phase and neutral conductors of an electrical installation to ensure the safety of personnel...
How to achieve earth leakage protection in TT earthing system
According standard IEC 60364 4-41, for TT earthing system the protection must be ensured by RCD, the sensitivity Idn of which complies with the condition...
What is the difference between Compensated and Non Compensated trip units
The circuit-breakers with non compensated thermal tripping elements have a tripping current level that depends on the surrounding temperature. When...
What is the list of default TCPIP ports used by Vijeo Citect.
               Default TCPIP ports used by Vijeo Citect:   Server Type Port File Server 21 CTAPI 2073 Cicode Debugging 2074 Report Server 2075 Alarm...
Is it possible to give continuous supply to the Shunt Trip (MX) coil of Compact NSX circuit breaker?
Yes, you can keep the supply ON continuously for the Shunt Trip coil (MX) of Compact NSX Circuit Breaker as new technology permits this without damaging...
How to select the iCT contactor rating for different types of lamps
Please find attached the table which shows the maximum number of light fittings for each contactor according to the type, power and configuration...
what is SISvar software and from where can be downloaded?
SISvar software is used to:   Get technical information about power factor correction and harmonics Calculate your reactive power needs Select the...
What is meant by reflex tripping for NSX breakers
Compact NSX100 to 630 devices incorporate the exclusive reflex-tripping system. This system breaks very high fault currents. The device is mechanically...
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