ABB | SACE Tmax XT
16 | © 2019 ABB | 1SDH002039A1002 - ECN000093027 - Rev. A
Overview of Ekip Touch | 4 - Operating features
4 - Operating features
Introduction
Ekip Touch has been developed and certified to function in specific environmental, electrical and mechanical
conditions; full details are available in the
Technical catalog
(page 4).
The following sections describe the electrical and power supply characteristics that enable Ekip Touch and
the relative electronic accessories to operate correctly.
Electrical characteristics
Correct operation of Ekip Touch is guaranteed when the primary voltages and currents are within range and
with clearly defined characteristics:
Parameter
Operating limits
Primary current (line-to-line)
0,03 ÷ 16 In
(1)
Primary voltage (line-to-line)
0 ÷ 690 V AC
Rated frequency
50 / 60 Hz ±10%
Peak factor
Complying with standard IEC 60947-2
(1)
based on each phase; In si refers to the nominal size defined by the Rating plug installed on the Trip unit,
available in models from 250 A to 400 A for CB with Iu= 400 A and from 250 A to 630 A for CB with Iu = 630 A
Ekip Touch can self-supply itself directly from the internal current sensors:
Parameter
Operating limits
Minimum three-phase turn-on current
> 0,2 In
Auxiliary power supply
Ekip Touch can be connected to an external auxiliary supply source, which is useful when certain functions
such as communication via Local Bus, recording manual operations, certain measurements and the
datalogger must be activated.
The auxiliary supply can be provided by modules from the
Ekip Supply
range (further details about operation
are given on page 131), or by direct connection to the internal terminal box.
Direct connection must guarantee the following operating conditions:
Parameter
Operating limits
Voltage
24 V DC galvanically isolated
Tolerance
±10%
Maximum ripple
±5%
Maximum inrush current @ 24 V
10 A per 5 ms
Maximum rated power @ 24 V
4 W
Connection cable
Insulated with grounding cable (same characteristics
as Belden 3105A/B or higher)
IMPORTANT: if connection is direct, the power supply must be galvanically insulated
and provide the insulation characteristics established by standard IEC 60950 (UL
1950) or equivalent.
