ABB | SACE Emax 2
Ekip Dip protection trip unit | 7 - Operating features35 | © 2017 ABB | 1SDH001330R0002 - ECN000058721 Rev. A
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 177), or with direct connection to a terminal box.
The direct connection must be made guaranteeing 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 a two-pole shielded cable
(Belden 3105A type or equivalent)
IMPORTANT: in case of direct connection, the power supply must be galvanically
insulated and provide the insulation characteristics established by the Standard IEC
60950 (UL 1950) or equivalent.
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