Electrical Characteristics - ABB Tmax T7 Operating Instructions Manual

3.3.8.

Electrical characteristics

The protection release is energized:
- Directly by the internal current sensors connected to the busbars of each phase. In this case, the release activates with the
circuit-breaker closed and in the presence of a minimum three-phase current value.
- Directly by the PR330/V module. In this case, the release activates in the presence of a minimum three-phase voltage value
and, depending on the connection configuration, with the circuit-breaker in all positions or only with the circuit-breaker closed.
- By an external auxiliary power supply. In this case, continuous operation of the unit is guaranteed even with nil current on the
busbars or with the circuit-breaker open. The range of protection release functions can also be expanded using external ac-
cessories HMI030 and Flex Interface.
NOTE: module PR330/D-M activates in the presence of an external auxiliary power supply or via PR330/V.
Primary current characteristics
Minimum three-phase busbar current (Low Power)
Minimum three-phase busbar current (Full Power)
Rated operating frequency
Peak factor
Primary voltage characteristics
Three-phase minimum phase-to-phase voltage (Full Power)
Three-phase minimum phase-to-phase voltage (Full Power and display ligh-
ting)
Auxiliary supply characteristics
DC voltage (galvanically separated)
Maximum ripple
Inrush current @ 24Vdc
Rated power @ 24Vdc
WARNING: Since the auxiliary voltage needs to be isolated from the ground, "galvanically separated converters"
in accordance with the IEC standard 60950 (UL 1950) or the equivalent IEC 60364-41 and CEI 64-8.
If supplied by primary current or voltage, PR332/P and PR333/P include 3 different operating modes, depending on the level of
the supply signals:
- Low Power: this mode guarantees operation of all the protections provided by the protection release, operation of the front LEDs
and display energizing in the Low Power mode, but access to the menus is not allowed.
- Full Power: this mode guarantees operation of all the protections provided by the protection release, operation of the front LEDs
and display energizing in the Full Power mode. Access to the menus is also allowed.
- Full Power and display lighting: this mode includes all the Full Power functions and powers the display lighting system.
B0431
Mod.
Range
(Consult ABB for a dedicated analysis if there are higher peak factors)
B1751
> 80A
> 160A
50/60Hz ±10%
2.1 @ 2xIn, in accordance with IEC 60947 annex F
Range
Activation of display lighting
Apparatus
Emax X1-Tmax T7-Tmax T8
1SDH000587R0002
Doc N°
> 60V
> 90V
(3)
24 Vdc ±20%
5%
~2 A for 5ms
~3 W
Scale
Page No
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