ABB Tmax T7 User Manual

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Doc N°
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Apparatus
Scale
Page No
1SDH000587R0002
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 Range
Minimum three-phase busbar current (Low Power) > 80A
Minimum three-phase busbar current (Full Power) > 160A
Rated operating frequency 50/60Hz ±10%
Peak factor
2.1 @ 2xIn, in accordance with IEC 60947 annex F
(Consult ABB for a dedicated analysis if there are higher peak factors)
Primary voltage characteristics Range
Three-phase minimum phase-to-phase voltage (Full Power) > 60V
Three-phase minimum phase-to-phase voltage (Full Power and display ligh-
ting)
> 90V
Auxiliary supply characteristics
Activation of display lighting
(3)
DC voltage (galvanically separated) 24 Vdc ±20%
Maximum ripple 5%
Inrush current @ 24Vdc ~2 A for 5ms
Rated power @ 24Vdc ~3 W
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.
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ABB Tmax T7 Specifications

General

Brand	ABB
Model	Tmax T7
Category	Other
Language	English