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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I
t
t
100% 200%
50% 150% — Ekip Touch/Hi-Touch Protection functions L S I I steady state start-up t I7 t7 I
t
The Ekip Touch/Hi-Touch can be customized with the protection functions required.
I4
t4
I
I
8 L – Overload (L - ANSI 49) This function is used for protection against overloads. It allows the setting of the trip threshold, trip time and pre-alarm threshold. Three different types of trip curves are available: 1. t = k/l 2 with an inverse long time; 2. IDMT in accordance with IEC 60255-151 for coordination with medium voltage protection, available ac -
t t
t
100% 200%
Extremely Inverse Very Inverse Standard Inverse
50% 150%
t
L
I7
I3
S
t7
I
I I
cording to Standard Inverse (SI), Very Inverse (VI) and Extremely Inverse (EI) curves; 3. With a t = k/l4 curve for better coordination with upstream circuit-breakers or fuses. S – Time-delayed overcurrent (S - ANSI 51 & 50TD)
I
I
t
t t
steady state
start-up
t
I7
t
UV This function is used to protect against selective short-circuits. If necessary, it can be disabled, or if needed, only the trip can be excluded keeping the alarm indication, to be used in installations where conti- nuity of service is required. With a constant trip time (t = k), or constant specific let through energy (t = k/l 2 ).
U8
t7
I4
I2
t2 t4
I
t8
I V
I
I
t
100% 200% steady state
t
start-up
t t t
I – Short-circuit This function is used for instantaneous protection against short-circuits. The trip threshold is adjustable and, if needed, the protection can be disabled.
50% 150%
L
t
I7 I3
I1
S
OV
U9
t1
I
t7
I I I V I
t8 9
I
t
100% 200%
t
steady state 50% 150%
G - Ground fault This function protects against earth faults. The trip threshold and trip time are adjustable. When needed, the protection can be disabled.
t t
L
start-up
S
I2 I4
f12
UF
I
t2 t4
I
I I I f
t12
Neutral protection This function is used to adjust the setting provided from protections L, S and I on the Neutral pole with a control factor which is different from the other phases. It is available with values at 50%, 100%, 150% or 200% of the phase currents. It can be disabled if necessary.
t
t t t t
100% 200%
50% 150%
L
I1
I3
I4
S
OF
t1
f13
t4
I
I
t13
I I f I
voltage unbalance 2I - Second protection against instantaneous overcurrent This function protects against the instantaneous short-circuit (e.g. I protection) and it is enabled with an activa- tion event (or command), that can be programmed by the user. It can be activated for different uses in three ways: • locally, directly on the Ekip display unit • locally, with a smartphone with the EPiC app via Bluetooth • locally, with a PC with the Ekip Connect program • remotely, via any Ekip Com module connected to the circuit-breaker • remotely, via a switch wired through an Ekip Signalling module. When active, the Ekip display unit will show a confirmation of the activation and a red LED alarm will flash on the diagnosis bar. senso ciclico Moreover, the second instantaneous tripping curve (also referred to as RELT - Reduced Energy Let- Through) is designed to mitigate arc flashes. This protection can be adjusted from 1.5 to 15 x In with a ma- ximum setting of 18kA. Easy activation and I/O assignment, including positive feedback, can be establi - shed using the RELT Ekip Signaling 2k-3 module.
t
t
I3
mean
I4 I2
U14
t4 t2
I
I
U1 U2 U3
t
t t
V1
I1
I3
t1
I2
t2
I
I
V3
V2
I
t
I1
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