ABB | SACE Emax 2
Ekip Dip protection trip unit | 7 - Operating features
51 | © 2017
ABB |
1SDH000999R0002 - ECN000058721 - Rev. B
7 - Operating features
Primary operating currents
The Ekip Dip trip unit can be powered directly by the internal current sensors, with clearly defined primary
currents.
The operating conditions for proper operation are listed below:
Parameter
Operating limits
Minimum three-phase turn-on current
> 80 A (E1.2-E2.2-E4.2)
> 160 A (E6.2)
Rated frequency
50 / 60 Hz ± 10 %
Harmonic distortion
Conforming to 60947-2
Auxiliary power supply
The Ekip Dip trip unit can be connected to an external auxiliary power source, useful for activating some
functions such as communication on the Local Bus or recording of manual operations.
The auxiliary power can be supplied by the modules of the Ekip Supply range (for further functional details,
see page 62), or with direct connection to a terminal box.
The direct connection must be made guaranteeing the operating following 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 a two-pole shielded cable (Belden
3105A type or equivalent)
IMPORTANT: if connection is direct, the power supply must be galvanically insulated
and provide the insulation characteristics established by IEC 60950 Standard
(UL 1950) or equivalent.
