Page 226 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
Connections The module must be assembled in the first vacant slot of the terminal box after Ekip Supply, either on the
circuit-breaker (fixed version) or on the fixed part (withdrawable version).
For references about the connection and terminals, please consult document 1SDM000091r0001; use
AWG 22-16 cables with 1.4 mm maximum outer diameter for the external cabling.
To connect the module to Ekip Touch, please consult document 1SDH001000r0513.

Power supply Ekip Com Synchrocheck is supplied directly by the Ekip Supply module to which it is connected.
NOTE: communication between Ekip Touch and the module is interrupted in the absence of
auxiliary power supply

Input Ekip Synchrocheck has an input (V S1 - V S2) for reading voltage, operation of which is ensured within the
ranges and with the performance given below:
Component Operating range Normal operating range Accuracy (1)
Voltage 0÷120 VAC 10 ÷ 120 VAC 1 % (2)
Frequency (3) 30÷80 Hz 30 ÷ 80 Hz 0,1 % (4)
Phase (5) - -180 ÷ +180 ° 1 °

(1) the accuracy values refer to normal operating ranges, as established by IEC 61557-12
(2) with busbar activated
(3) with the busbar activated, frequency measurement starts at ≥ 36 V AC and ends at ≤ 32 V AC measured
voltage
(4) in the absence of harmonic distortion
(5) phase measurement refers to the phase difference between internal and external voltage

Isolation transformer
An isolating transformer with the characteristics given below must always be installed between the external
contacts of the circuit-breaker and the input of the module:
Characteristics Description
• fixing: EN 50022 DIN43880 rail
• material: self-extinguishing thermoplastic
Mechanical
• protection class: IP30
• electrostatic protection: with earth connector shield
• accuracy class: ≤ 0,2
• performance: ≥ 4 VA
• overload: 20% permanent
Electrical
• insulations: 4 kV between inputs and outputs, 4 kV between screen and outputs,
4 kV between screen and inputs
• frequency: 45 to 66 Hz

Output Ekip Synchrocheck has an output (K S1 - K S2) used as synchronism contact.
The output is insulated from the unit and input, and has the following electrical characteristics:
Characteristics Maximum limit (1)
Maximum switchable voltage 150 VDC / 250 VAC.
2 A @ 30 VDC, 0,8 A @ 50 VDC, 0,2 A @ 150 VDC,
Breaking capacity
4A @ 250 VAC
Dielectric strength between open contacts 1000 V AC (1 minute @ 50 Hz).
Dielectric strength between each contact and coil 1000 V AC (1 minute @ 50 Hz).

(1) data relating to a resistive load

224 | © 2020 ABB | 1SDH001330R1002 - ECN000134959 - Rev. A External electronic accessories | 12 - Ekip Synchrocheck