Accessories

Overview

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).

Voltage selector switch : 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.

Operating principle

H3US

The relay monitors its own supply voltage.

It controls :

- Undervoltage, adjustable from - 2 to - 20 % of Un (-2 to -12 % over the 3 x 220 V AC range due to the minimum voltage 194 V AC)

- Overvoltage, adjustable from + 2 to +20 % (+2 to +10 % over the 3 x 480 V AC range due to the maximum voltage 528 V AC).

Each threshold has its own time delay with independent setting between 0.3 and 30 s.

In the event of a voltage fault, the corresponding relay (one undervoltage output/one overvoltage output) opens at the end of the time delay set by the user.

In the event of phase failure, both relays open instantaneously, without waiting for the end of the time delay. The two relay LEDs go out.

H3USN

The relay monitors its own supply voltage.

It controls :

- Presence of the neutral,

- Undervoltage, adjustable from -2 to -20 % of Un,

- Overvoltage, adjustable from +2 to +20 %.

Connecting capacity IEC/EN 60947-1

Rigid : 1 x 4

1 x 11 AWG - 2 x 14 AWG

Flexible with ferrules : 1 x 2.5

1 x 14 AWG - 2 x 16 AWG

Max. tightening torques IEC/EN 60947-1

0,6 →1 Nm / 5,3 →8,8 Lbf.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 →150 Hz, A = 0.035 mm

Shocks IEC/EN 60068-2-6

5 g

Standards

Standards

IEC/EN 50178, IEC/EN 61000-6-2, IEC/EN 61000-6-3

Certifications

CE, UL, CSA, GL

Conformity with environmental directives

RoHS, WEEE

Supply

Supply voltage Un

3 x 220 →3 x 480 V AC *

Voltage supply tolerance

-12 % / +10 %

Operating range

194 →528 V AC

Power consumption at Un

22 VA in 400 VAC, 50 Hz

Inputs and measuring circuit

Selection of phase-phase nominal voltage Un

220-380-400-415-440-480 V AC

Selection of phase-neutral voltage

-

Timing

Delay on pick-up

≤ 650 ms

Output

Electrical life (number of operations)

1 x 10

4

General characteristics

Casing

35 mm

Weight

130 g

Comments

Description

Code

Removable sealable cover for 35 mm casing

84800001

Principles

Principles

H3US - H3USN - Under/Overvoltage

Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected

26/02/2014

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