SACE TMAX XT UL/CSA LOW VOLTAGE MOLDED CASE C I RCUI T- BRE AKERS UL4 89 AND CSA C2 2 . 2 STANDARDS
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— Ekip Touch/Hi-Touch Overview
Rating Plug The XT5 and XT7 trip units allow the rated current to be modified by simply changing the front rating plug. Thus, an upgrade of the circuit-breaker, when- ever needed, can be carried out without replacing the circuit-breaker. Commissioning The setting, testing and downloading of reports can be carried out directly from a smartphone, tab- let or PC. In addition, the commissioning stage can be further accelerated, minimizing the possibility of errors, by directly configuring the protection trip unit with the DOC design software settings. Test function The test port and the iTest key on the front of the pro- tection unit can be used to carry out circuit- breaker tests by connecting one of the following devices: • The Ekip TT, which allows trip tests, LED tests and checks for the absence of alarms detected by the watchdog function; • The Ekip T&P, which permits not only trip tests and LED tests but also testing of the individual protection functions and the saving of the relative report; • The iTest key, to run a battery test when the circuit-breaker is disconnected. The following table shows the main features for each version of the trip unit. The additional features can be added to the trip unit at the time of purchase or after, via the ABB Ability Marketplace™.
Watchdog All the Ekip Touch/Hi-Touch trip units for the Tmax XT ensure high reliability thanks to an electronic circuit that periodically checks the continuity of the internal connections, such as the trip coil, rating plug and each current sensor (ANSI 74). In the event of an alarm, a message is shown on the display, and if it is set during the installation phase, the trip unit can command the opening of the circuit-breaker. If a protection function intervenes, Ekip Touch/Hi- Touch always checks that the circuit-breaker has been opened by auxiliary contacts that indicate the position of the main contacts. Otherwise, Ekip Touch/Hi-Touch indicate an alarm (ANSI BF code Breaker Failure) to command the opening of the cir- cuit-breaker upstream. Ekip Touch/Hi-Touch also feature self-protection, which ensures the correct operation of the unit in overtemperatures (OT) in- side the protection trip unit. The following indications or controls are available: • “Warning” LED for temperature below -20 °C or above +70 °C, at which point the trip unit operates correctly with the display switched off. • “Alarm” LED for temperature outside the operat- ing range, at which point the trip unit commands the opening of the circuit-breaker (if set during the configuration phase).
Trip Unit
Current measurement & protection
Voltage, power, energy measurements
Voltage, power, energy protections
Embedded functions*
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Ekip Touch LSI Ekip Touch LSIG
Ekip Touch Measuring LSI ● Ekip Touch Measuring LSIG ●
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Ekip Hi-Touch LSI Ekip Hi-Touch LSIG Ekip M Touch LRIU Ekip G Touch LSIG Ekip G Hi-Touch LSIG
○ Additionable features
● Default available
* See the following pages for more details
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