ABB SACE Emax 2 Installation, Operation And Maintenance Instructions - page 52
ABB | SACE Emax 2
50 | © 2014
ABB |
1SDH000999R0002 - L8569
Ekip Dip protection release | 7 - Operating features
7 - Operating features
Primary operating currents
The Ekip Dip release 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 release 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 61), 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:
•
With a direct connection, the power must be galvanically isolated and must ensure the
insulation characteristics retrieved from IEC 60950 (UL 1950) or equivalent standards
that ensure a common mode current, or leakage current, (see IEC 478/1, CEI 22/3) no
greater than 3.5 mA.
•
The Ekip Supply modules do not require galvanic insulation.