Operating Features - ABB SACE Emax 2 Series Operating Instructions Manual

4 - Operating features

Introduction Ekip Dip and Ekip Touch have been developed and certified to function in specific environmental, electrical
Electrical characteristics The Ekip Touch and Ekip Dip measurement and protection functions described in this document are
Self-supply The internal current sensors are able to supply the Trip unit directly; Ekip Touch versions Hi-, G, G Hi- are
Auxiliary power supply Ekip Dip and Ekip Touch can be connected to an external auxiliary supply source, which is useful for
20 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
and mechanical conditions; full details are available in the Technical catalog (page 16).
The following sections describe the electrical and power supply characteristics that enable Trip unit and
the relative electronic accessories to operate correctly.
provided with primary voltage and current values within the following nominal ranges:
Parameter
Primary current
Primary voltage
Rated frequency
Peak factor
range with reference to each phase; In refers to the rated size defined by the Rating plug installed
(1)
on the Trip unit, available in models from 100 A to 6300 A, depending on the circuit-breaker model
used
for Ekip Touch rated highest line-to-line voltage connected directly to Trip unit, also to sockets
(2)
inside the CB; external transformers must be used for higher voltage values, consult the chapter
dedicated to the Measurement modules
also fitted with the Measurement enabler with voltage sockets module, which allows the Trip unit to be
supplied by the installation voltages as well:
Parameter
Minimum three-phase turn-on current
Minimum three-phase turn-on voltage > 80 V
activating certain functions such as communication via Local Bus, recording manual operations, certain
measurements and the datalogger if available.
The auxiliary supply can be provided by modules from the Ekip Supply range or by direct connection to
the terminal box.
Direct connection must guarantee the following operating conditions:
Parameter
Voltage
Tolerance
Maximum ripple
Maximum inrush current @ 24 V
Maximum rated power @ 24 V
Connection cable
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.
Rated operating range
0,004 ÷ 16 In (1)
5 ÷ 690 V AC
(2)
45 ... 55 Hz (with fn= 50 Hz) / 54 ... 66 Hz (with fn= 60 Hz)
Complying with standard IEC 60947-2
Operating limits
> 30 A (E1.2-E2-2-E4.2 with Rating Plug < 400 A)
> 80 A (E1.2-E2-2-E4.2 with Rating Plug ≥ 400 A)
> 160 A (E6.2)
Operating limits
24 V DC galvanically isolated
±10%
±5%
10 A per 5 ms
4 W
Insulated with grounding cable (same characteristics as
Belden 3105A/B or higher)
ABB | SACE Emax 2
Trip unit Overview
4 - Operating features