Datasheet
3-phase voltage controllers which monitor:
- Undervoltage, adjustable from -20 to -2% of Un
- Overvoltage, adjustable from 2 to 20% of Un
- Presence of the neutral (H3USN only)
Measurements are taken between Phases for the H3US -
M3US and between Phases and Neutral for the H3USN
Faults are signalled via LEDs, distinguishing the origin of the fault (one LED for the upper threshold, one LED for the lower threshold).
Set the selector switch to the 3-phase network voltage Un.
The position of this selector switch is only taken into account when the unit is powered up.
If the switch position changes while the unit is operating, all the LEDs flash but the product continues to work normally with the voltage selected on energisation prior to the change of position.
The LEDs return to their normal state if the switch is reset to its initial position defined before the last energisation.
1 x 11 AWG - 2 x 14 AWG
Flexible with ferrules: 1 x 2.5
2
- 2 x 1.5
2
mm
2
1 x 14 AWG - 2 x 16 AWG
Max. tightening torques
IEC/EN 60947
-1
0,6→1Nm
/5,3→8,8Lbf.Ft
Operating temperature IEC/EN 60068
-2
-
20→+50°C
Storage temperature IEC/EN 60068
-2
-
40→+70°C
Humidity IEC/EN 60068
-2-30
2 x 24 hr cycle 95% RH max. without condensation 55°C
Vibrations according to IEC/EN60068
-2-6
10→150Hz,A=0.035mm
Shocks IEC/EN 60068
-2-6
5 g
Standards
Marking
CE (LVD) 73/23/EEC
-
EMC 89/336/EEC
Product standard
NF EN 60255
-
6 / CEI 60255
-
6 / UL 508 / CSA C22.2 N°14
Electromagnetic compatibility
Immunity EN 61000
-6-
2/IEC 61000
-6-2
Emission EN 61000
-6-
4/EN 61000
-6-3
IEC 61000
-6-
4/IEC 61000
-6-3
Emission EN 55022 class B
Certifications
UL, CSA, GL
Conformity with environmental directives
RoHS, WEEE
Supply
Supply voltage Un
3x220→3x480VAC*
Voltage supply tolerance
-12% / +10%
Operating range
194→528VAC
Power consumption at Un
2.9 VA in AC
Inputs and measuring circuit
Selection of phase-
phase nominal voltage Un
220-380-400-415-440-480 V AC
Selection of phase-neutral voltage
-
Output
Electrical life (number of operations)
1 x 10
4
General characteristics
Casing
35 mm
Weight
130 g
Comments
* 3
-phase mains with earth
Description
Code
Removable sealable cover for 35 mm casing
84800001
Dimension Diagram : H3US
-
H3USN
:
: H3US
-
H3USN
-
Under/Overvoltage
Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected
13/03/2012 www.crouzet.com



