Crouzet 84873026 Data Sheet

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Page 1

Phase control

HWUA

Part numbers

Product adaptations

Accessories

General characteristics

➜ Multi-function phase control relay 35 mm

■ Control of 3-phase networks: phase sequence, phase

failure, asymmetry, under and overvoltage with independent settings

■ Multi-function/Multi-voltage product

■ Controls its own supply voltage

■ True RMS measurement

■ LED status indication

Type Functions Nominal voltage (V) Code

HWUA Phase sequence, failure, asymmetry, under/overvoltage

■ Customisable colours and labels

■ Single voltage in the generic range

■ Fixed undervoltage threshold in the generic range

■ Fixed overvoltage threshold in the generic range

■ Fixed asymmetry threshold in the generic range or adjustable 5➞ 25 %

■ Fixed or adjustable time delay

3 x 220

➞ 3 x 480 V

84873026

Description Code Description

Removable sealable cover for 35 mm casing

Supply

Supply voltage Un Voltage supply tolerance -12% / +10%

Operating range 194

supply voltage frequency Galvanic isolation of power supply/measurement No Power consumption at Un

Immunity from micro power cuts 10 ms

Inputs and measuring cicuit

Measurement ranges 194 Selection of phase-phase nominal voltage Un 220 - 380 - 400 - 415 - 440 - 480 V Frequency of measured signal 50 Max. measuring cycle time 140 ms/True RMS measurement Voltage threshold adjustment 2

Asymmetry threshold adjustment 5 Fixed hysteresis Under or overvoltage, asymmetry: 2% of the Un value of the selected

Display precision ± 3% of the displayed value Repetition accuracy with constant parameters ± 0.5% Measuring error with voltage drift < 1% Measuring error with temperature drift 0.05%/°C

3 x 220

➞ 3 x 480 V

➞ 528 V

50 / 60 Hz ± 10%

2.9 VA in

(+2

-12 to -2% across the 3 x 220 V

network Asymmetry: 2% of the Un value of the selected network

➞ 528 V

➞ 60 Hz ± 10%

➞ 20% of selected Un

➞ +10% across the 3 x 480 V

➞ 15% of fixed Un

range

Code 84800001

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General characteristics

Timing

Delay on threshold crossing 0.1 Repetition accuracy with constant parameters ± 0.3% Reset time 1.5 s Delay on pick-up 500 ms Alarm on delay time max. < 200 ms

Output

Type of output 1 double changeover relay Type of contacts No cadmium Maximum breaking voltage

Max. breaking current Min. breaking current Electrical life (number of operations) Breaking capacity (resistive) Maximum rate 360 operations/hour at full load

Operating categories acc. to IEC 60947-5-1 AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14 Mechanical life (operations)

Insulation

Nominal insulation voltage IEC 60664-1 400 V Insulation coordination (IEC 60664-1 / 60255-5) Overvoltage category III: degree of pollution 3 Rated impulse withstand voltage IEC 60664-1/60255-5 4 KV (1.2 / 50 µs) Dielectric strength IEC 60664-1/60255-5 2 kV AC 50 Hz 1 min Insulation resistance IEC 60664-1 / 60255-5

General characteristics

Display power supply Green LED

Display relay Yellow LED

"Fault" indication Yellow LED

Casing 35 mm Mounting On 35 mm symmetrical DIN rail, IEC/EN 60715 Mounting position All positions Material: enclosure plastic type VO to UL94 standard Incandescent wire test according to IEC 60695-2-11 & NF EN 60695-2-11 Protection (IEC 60529) Terminal block: IP 20

Weight 130 g Connecting capacity IEC 60947-1

Max. tightening torques IEC 60947-1 0.6 Operating temperature IEC 60068-2 -20 Storage temperature IEC 60068-2 -40 Humidity IEC 60068-2-30 2 x 24 hr cycle 95% RH max. without condensation 55°C Vibrations according to IEC/EN60068-2-6 10 Shocks IEC 60068-2-6 5 g

Standards

Marking CE (LVD) 73/23/EEC - EMC 89/336/EEC Product standard NF EN 60255-6 / IEC 60255-6 / UL 508 / CSA C22.2 N°14 Electromagnetic compatibility Immunity EN 61000-6-2/IEC 61000-6-2

Certifications UL, CSA, GL

Conformity with environmental directives RoHS, WEEE

Comments

➞ 10s (0, +10%)

250 V

5 A 10 mA / 5 V 1 x 10 1250 VA

30 x 10

> 500 MΩ / 500 V

Extinguished in the event of phase failure

Flashes during the threshold crossing delay

Lights up in the event of asymmetry Flashes in the event of under or overvoltage

Casing: IP 30

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

Emission EN 61000-6-4/EN 61000-6-3 IEC 61000-6-4/IEC 61000-6-3 Emission EN 55022 class B

- 2 x 2.52 mm2

➞ 1 Nm / 5.3 ➞ 8.8 Lbf.In ➞ +50°C ➞ +70°C

➞ 150 Hz, A = 0.035 mm

- 2 x 1.52 mm

pending

* 3-phase mains with earth

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Overview

Phase control

Principles

L1 L2

The HWUA 3-phase network control relay monitors:

- The correct sequence of phases L1, L2, L3

- Total phase failure

- Undervoltage and overvoltage from 2 to 20 % of Un

- Asymmetry rate from 5 to 15% of Un

- Faults are signalled via LEDs, distinguishing the origin of the fault. If a fault persists for longer than the threshold crossing delay configured by the user, both output relays open and LED R is extinguished.

HWUA - Failure, phase sequence and asymmetry Operating principle

HWUA: Phase + Asymmetry + Under/Overvoltage controller

3 4

0 %

Phase L1

Phase L2

Phase L3

Asymmetry threshold

Hysteresis

Relay

Delay on threshold crossing (Tt)

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.

The relay monitors its own supply voltage.

The relay controls:

- correct sequencing of the three phases,

- failure of one of the three phases (U measured < 0.7 x Un),

- asymmetry, adjustable from 5 to 15% of Un,

- undervoltage adjustable from - 2 to - 20% of Un, (-2 to -12% for the 220 V range) and overvoltage adjustable from +2 to +20% (+2 to +10% over the 3 x 480 V range due to the maximum voltage 528 V In the event of a phase sequence or failure fault, the relay opens instantaneously. In the event of an asymmetry or voltage fault, the relay opens at the end of the time delay set by

HWUA - Under/Overvoltage

Overvoltage

Hysteresis

Undervoltage

Phases L1, L2, L3

Relay

Delay on threshold crossing (Tt)

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Dimensions (mm)

HWUA

3,5

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23,2

67,5

Connections

HWUA

100 mA fast-blow fuse

L1 L2

11 21 2412 2214

2,6

5,5

– KM1

R1 R2