Page 36 - Sace Emax 2 Catalogue

3/12 SACE EMA X 2 LOW VOLTAGE AIR CIRCUIT-BRE AKERS

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Architecture

All SACE Emax 2 circuit breakers are equipped with protection trip

units that are able to evolve during the life cycle.

Ekip trip units are easily interchangeable from the • Interchangeable rating plug enables all protec-
front, with no need to dismantle the circuit tion thresholds to be adjusted according to the
breaker or access any internal or sensitive parts. rated current, increasing flexibility for the cus-
In particular, they consist of: tomer. It is useful in installations that are pre-
pared for future development or in cases in
• Protection trip unit, available with different in- which the power supplied may be limited tem-
terfaces and versions that range from basic to porarily.
more complete; it contains a latest generation
microprocessor that performs all the functions
of protection and control. • Main board is the mechanical housing of the
trip unit, which includes a micro-controller for
measuring currents and the self-protection
• Measurement Enabler module, hardware con- functions. The separation of trip units ensures
nected internally on all SACE Emax 2 cir- excellent reliability and immunity to conducted
cuit-breakers equipped with Touch and Hi- and radiated emissions. Integrated new genera-
Touch trip units. The module enables high tion Rogowski sensors, which are sensitive to
accuracy voltage, power and energy measure- the true r.m.s. value of the current, guarantee
ments and advanced protections without re- high accuracy of both measurements and pro-
quiring any external connection or voltage tection.
transformers. The Measurement Enabler with
voltage sockets module (standard with Ekip Hi-
Touch and optional on Ekip Touch) additionally
allows to supply the trip unit through direct
connection to the busbar system. Depending on
the functionality desired, a software package
may need to be purchased separately.