Page 66 - SACE Tmax XT - Catalogue

3/32 SACE TMAX XT LOW VOLTAGE MOLDED CASE CIRCUIT-BREAKERS

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Ekip Touch/Hi-Touch

Overview

Watchdog
All the Ekip Touch/Hi-Touch trip units for the Ekip Touch/Hi-Touch also features self-protec-
Tmax XT ensure high reliability thanks to an elec- tion, which ensures the correct operation of the
tronic circuit that periodically checks the continu- unit in overtemperatures (OT) inside the protec-
ity of the internal connections, such as the trip tion trip unit.
coil, rating plug and each current sensor (ANSI The following indications or controls are available:
74). In the event of an alarm, a message is shown • “Warning” LED for temperature below -20 °C or
on the display, and if it is set during the installa- above +70 °C, at which point the trip unit oper-
tion phase, the trip unit can command the open- ates correctly with the display switched off.
ing of the circuit-breaker. If a protection function • “Alarm” LED for temperature outside the oper-
intervenes, Ekip Touch/Hi-Touch always checks ating range, at which point the trip unit com-
that the circuit-breaker has been opened by auxil- mands the opening of the circuit-breaker (if set
iary contacts that indicate the position of the during the configuration phase).
main contacts. Otherwise, Ekip Touch/Hi-Touch
indicates an alarm (ANSI BF code Breaker Failure)
to command the opening of the circuit-breaker
upstream.