|FA22993||What is the ratio n between the peak value and the root mean square value of the short-circuit current|
Product standard BS EN 60947-1 defines the ratio n between the peak value and the rms value of the short-circuit current (table 16 on page 106). The...
|FA23005||What are the characteristics of phase unbalance protection of STR22ME and STR43ME motor trip units for NS100 to 630 circuit-breakers|
STR22ME and STR43ME electronic motor trip units incorporate protection against phase unbalance (current).
For the STR22ME trip unit: the unit compares...
|FA27967||What is the operating temperature range of the C60H circuit-breakers.|
The C60H circuit-breaker operating temperature range is between -5°C to +60°C.
|FA23749||What is the tightening torque for the terminal extensions and spreaders for Compact NS100 to 630 circuit-breakers.|
The tightening torque for the terminal extensions and spreaders for Compact NS100 to 630 circuit breakers is:
10 Nm for Compact NS100.
15 Nm for...
|FA31963||If the C120H circuit breaker is locked ON with the 27145 padlocking facility will it still trip under fault conditions.|
Yes, All of the miniature circuit breakers have a "trip free" mechanism which enables them to trip under fault conditions even if the handle is locked...
|FA23629||What are the different types of electrical and hydraulic (fluid) connection for XMLA and XMLB pressure switches?|
For XMLA and XMLB pressure switches, the last 3 digits of the product code (S11, S12, S13 or S14) determine the thread of the electrical and hydraulic...
|FA22991||What is the degree of protection of Multi9 circuit-breakers?|
The degree of protection of Multi9 circuit breakers is: IP40, IK5 on the front panel. IP20 at the connection terminals.
|FA23786||Can the SDE contact be fitted into a Masterpact NT or NW switch disconnector.|
The SDE contact does not perform any function on a Masterpact switch disconnector and therefore it's not fitted nor is it available as an option.
|FA23865||How can I fit the shunt trip MX or undervoltage MN coil on a Compact NS100 to 630.|
Please see the attached instructions.
The MCCB must be in the tripped position before fitting / removing shunt trip or undervolatge coils.
|FA24887||How can I configure an output on the ATV31 for a mechanical brake control?|
A mechanical brake can be controlled by the ATV31 drive R1 or R2 relay output. It is preferable to use R2 because R1 is often reserved as the fault...