Crouzet 84872140 Data Sheet

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Page 1

Voltage control

MUS

MUSF

Part numbers

Product adaptations

Accessories

General characteristics

➜ Voltage control relay - 17.5 mm

■ Control relays monitoring their own power supply

- MUS: Over/undervoltage control Selectable latching (memory) function

- MUSF: Over/undervoltage control

■ Adjustable time delays

■ Control in 50 Hz, 60 Hz or

■ True RMS measurement

■ LED status indication

Controlled ranges Functions

Under/Overvoltage control 84872140 84872141 84872142 Under/Overvoltage control in window mode

MUS 12

➞ 15 V

MUS/MUSF 80

20 ➞ 80 V

84872151 84872152

MUS/MUSF 260

65 ➞ 260 V

■ Customisable colours and labels

■ Fixed threshold in the generic measurement range

■ Fixed or adjustable time delay

■ Adjustable hysteresis

Adaptations dedicated to MUS 12

, MUS 80 a, MUS 260 a:

■ Possible to delete settings

■ Adjustable fixed hysteresis

Description Code

Removable sealable cover for 17.5 mm casing 84800000

MUS 12

Supply

Nominal voltage (V) Power consumption at Un Operating range Range of adjustment

Inputs and measuring cicuit

Hysteresis 5 ➞ 20% of threshold 5 ➞ 20% of threshold

General characteristics

Weight 75 g 80 g 80 g

12 V 1 W in

➞ 20 V

7 9

➞ 15 V

c c

MUS/MUSF 80

24 ➞ 48 V

3.9 VA in a/1.6 W in 15 ➞ 100 V 20 ➞ 80 V

(MUS) 3% (fixed) of threshold (MUSF)

MUS/MUSF 260

110 ➞ 240 V

3 VA in a/1 W in 50 ➞ 270 V 65 ➞ 260 V

➞ 20% of threshold

(MUS) 3% (fixed) of threshold (MUSF)

z z

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General characteristics

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MUS 12 c / MUS/MUSF 80 z / MUS/MUSF 260

Supply

Polarity with DC voltage

supply voltage frequency

✓

50 / 60 Hz ± 10%

Galvanic isolation of power supply/measurement No Immunity from micro power cuts 10 ms

Inputs and measuring cicuit

Max. measuring cycle time 250 ms/True RMS measurement Display precision ±10% of full scale Repetition accuracy with constant parameters ± 0.5% Measuring error with voltage drift < 1% across the whole range Measuring error with temperature drift ± 0.05% / °C

Timing

Delay on threshold crossing 0.1

➞ 10 sec (0, +10%)

Repetition accuracy with constant parameters ± 0.5% Reset time 1.5 s Delay on pick-up

500 ms en

/ 1 s in

Output

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

Max. breaking current Min. breaking current Electrical life (number of operations) Breaking capacity (resistive)

250 V

5 A 10 mA / 5 V

1 x 10 1250 VA

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)

30 x 10

Insulation

Nominal insulation voltage IEC 60664-1 250 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

Insulation resistance IEC 60664-1 / 60255-5

2 KV

50 Hz 1 min

> 500 MΩ / 500 V

General characteristics

Display power supply Green LED Display relay Yellow LED Casing 17.5 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

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

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

- 2 x 2.52 mm2

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

- 2 x 1.52 mm

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

➞ 150 Hz, A = 0.035 mm

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

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

pending

Conformity with environmental directives RoHS, WEEE

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Overview

Voltage control

Principles

MUS and MUSF voltage control relays monitor single-phase DC network voltages.

These products monitor their own supply voltage. MUS relays allow the user to choose between two operating modes:

- Under/overvoltage

- With or without fault latching An adjustable time delay, on threshold crossing, provides immunity from transient phenomena, thus preventing spurious triggering of the output relay.

Operating principle MUS - Under/Overvoltage controller

The operating mode is set by the user. A switch is used to select under or overvoltage modes, with or without latching. The switch position, and hence the operating mode, is read by the product on energisation. If the switch is set to a non-conforming position, the product goes into fault mode, the output relay stays open, and the LEDs flash to signal the position error. 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.

MUS - Under/overvoltage - without latching

Threshold

Hysteresis

Overvoltage function relay

Undervoltage function relay

Controlled signal

Delay on threshold crossing (Tt)

The under or overvoltage threshold value is set by a graduated potentiometer by reading the Un scale to be monitored directly. The hysteresis is set by a graduated potentiometer from 5 to 20% of the preset threshold. The hysteresis value cannot be higher than the extremes of the measurement range. In overvoltage mode, if the controlled voltage exceeds the preset threshold for longer than the

time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage falls below the threshold value minus the hysteresis, the relay closes

instantaneously. In undervoltage mode, if the controlled voltage falls below the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage rises above the threshold value plus the hysteresis, the relay closes instantaneously.

MUS - Under/overvoltage - with latching

Threshold

Hysteresis

Overvoltage function relay

Undervoltage function relay

Controlled signal

Delay on threshold crossing (Tt)

If "with memory" mode has been selected, the relay opens and stays in this position when threshold crossing is detected. The power supply must be disconnected to reset the product.

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Principles

MUSF - Under and overvoltage controller in window mode

High threshold

Low threshold

Hysteresis

Controlled signal

Delay on threshold crossing (Tt)

Relais

Dimensions (mm)

MUS - MUSF

23,2

3,5

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MUSF relays operate in window mode: they check that the controlled voltage stays between a minimum and maximum threshold. The under and overvoltage threshold values are set by two graduated potentiometers by reading the Un scale to be monitored directly. The hysteresis is fixed, value: 3 % of the preset thresholds.

3 4 3

If the controlled voltage exceeds the preset upper threshold, or falls below the preset lower threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage returns to below the upper threshold value minus the hysteresis, or above the lower threshold value plus the hysteresis, the relay closes instantaneously. When the unit is powered up with a measured fault, the relay stays open.

17,5

67,5

Connections

MUS - MUSF

1 A fast-blow fuse or cut-out

A1 A2

1112 14

2,6

5,5

– KM1