| FA23926 | What is the meaning of the utilization categories AC1 and AC3 for the Tesys contactors? The standard utilization categories defines the current making and breaking values for contactors.
They depend on the following:
The type of... |
| FA22721 | Why are XPE foot switches only available with quick-break contacts whereas older models were available with slow-break contacts? For many years it was not possible to comply with the rules on positive opening using quick-break contacts. For this reason products were designed... |
| FA163890 | What are the differences between 380VAC, 400VAC and 415VAC Mains Supplies and what voltage equipment should I use? For many years, mainland Western Europe has used a mains, 3 phase, electricity supply rated at nominally 380VAC 50Hz. The UK used 415VAC 50Hz.
Currently,... |
| FA144607 | Does the Delta 105 trunking system meet the Part M compliance? The Delta 105 trunking system offers products that enable Part M compliance, please contact the technical support team on 0870 608 8 608 for further... |
| FA23007 | What is the meaning of the items screen-printed on the setting selector switches of the Micrologic and STR electronic control units. Standard IEC 60947-2 defines the names of the selector switches.
The meanings of the screen-printed items on the selector switches of the trip units... |
| FA142116 | Do LC1K and LC1D have mirror contacts? Which ones are those? Yes, if those contactors have built in or using ad on auxiliary, in the following circumstances:
TESYS model K contactors :
... |
| FA142074 | What is the maximum earth fault loop impedance Zs for the Tesys U? What values are taken into consideration to calculate the Zs values? For a TN system, section 413-02-08 of BS7671 defines the maximum earth fault loop impedance based on the following condition being met:
... |
| FA142128 | What’s the Earth loop impedance value Zs for the GV3 range?
Note: For calculation purposes, the single phase
voltage considered to be 240V |
| FA142242 | What is the maximum surface temperature limit for the TeSys D contactor terminals? Thermal image inspection of equipment is becoming a regular part of routine maintenance.
As contactors are switching and carrying power, they can... |
| FA142622 | Tripping curves for GB2 circuit breakers. The tripping curves for the GB2 circuit breakers are displayed below :
Extracted from the Control and protection components 2011/2012 catalogue... |