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References,characteristics 5

Zelio Control - measurementand control relays 5Phase sequence and loss of phasecontrol relays, model RM 84 873

ReferencesPhase sequence and loss of phase control relaysVoltage Setting range

VReference Weight

kg3 x 230 V 180260 RM 84 873 010 0.350

3 x 400 V 320460 RM 84 873 012 0.350

3 x 480 V 380550 RM 84 873 015 0.350

3 x 575 V 460660 RM 84 873 016 0.350

Technical characteristicsSupply Self-powered, terminals L1-L2Operating range 0.71.2 x UnFrequency Hz 50/60 Maximum consumption VA 6 Immunity to microbreaks ms 10Delay on pick-up ms 500Creepage distanceand clearance

Conforming to IEC 60664-1 kV 4kV/3

Input characteristicsMeasurement input resistance k 1 at UnRegeneration rate max. 70 % of the threshold settingUndervoltage detection (symmetrical drop) 20 % of the threshold settingThreshold setting accuracy 10 %

Output characteristicsOutput type 2 C/O contacts, AgCdOBreaking capacity 2000 VA, 80 WMaximum breaking current A / 8 Minimum breaking current mA / 100 Maximum switching voltage V / 250 Electrical life AC-12 2000 VA - 105 operating cycles

AC-15 Cos = 0.3 - 6000 operating cyclesDC-13 L/R = 300 ms - 6000 operating cycles

Time delay in the event of a fault s 0.210 Max : 1015

Other characteristicsIndication Power on Green LED

Relay Yellow LEDEnclosure Self-extinguishing PCTerminals Without cable end mm2 2 x 2.5

With cable end mm2 2 x 1.5Tightening torque Nm 0.6 max

Temperature limits Operation C - 20+ 60 Storage C - 30+ 70

Relative humidity 93 % without condensationVibration Amplitude mm 0.35

Frequency Hz 1055 Insulation resistance Conforming to IEC 60664-1 M > 100 at 500 VDielectric strength kV 3 at 1 mA for 1 minute/50 HzProduct certifications c UL us, CSA

RM 84 873 010

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Functions,dimensions 5

Zelio Control - measurementand control relays 5Phase asymmetry control relays,self-powered, model RM 84 873

Control:phase imbalance (asymmetry),phase sequence,disconnection of one or more phases with

regenerated voltage equivalent to 95 % of Un.Asymmetry rate adjustable on front panel (5 % to

20 %).3-phase power supply:

3 x 230 V and 3 x 400 V .Dual frequency : 50 and 60 Hz.Indication of phase presence and relay state by 2

LEDs.Time delay in the event of a fault adjustable from 0.5

to 10 seconds.Relay output:1 C/O contact, 8 A,2 C/O contacts, 8 A,

Operating principleThe device is self-powered by two phases.

A green LED indicates that the power supply is ON.

When the phase sequence is correct and the asymmetry rate is lower than the threshold indicated on the front panel, the output relay is energised; this is indicated by a yellow LED (lit).

The output relay de-energises after a delay T1, adjustable on the front panel, if one of the following faults is present:

- incorrect phase sequence,- absence of L3,- asymmetry rate higher than the threshold setting. This imbalance represents the

increase or decrease in the voltage of two phases compared to the voltage of a different phase.

The output relay de-energises instantaneously in the event of a break on L1 or L2.A hysteresis fixed at about 10 % ensures bounce-free relay switching around the threshold.

As differential measurement is used, the relay does not react to symmetrical increases or decreases in the mains supply.

L3

L2

T3T3T3 T1 T2 T1T3 T2 T2

100 %

0 %100 %

0 %100 %

0 %100 %

0 %

Phase L1

Phase L2

Phase L3

Asymmetry

Threshold asymmetry rate

Output relay ON(yellow LED) OFF

Hysteresis

R1/R2

T1: Delay after a faultT2: Delay on power-downT3: Delay on power-up.

Dimensions

5

77233,6

57

100

78,5

89,7

99,3

45

4,2

References :page 5/23

Characteristics :page 5/23

Schemes :page 5/79

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References,characteristics 5

Zelio Control - measurementand control relays 5Phase asymmetry control relays,self-powered, model RM 84 873

ReferencesPhase asymmetry control relays, self-poweredNumber of relays Supply voltages

measuredReference Weight

kg1 3 x 230 V RM 84 873 300 0.360

3 x 400 V RM 84 873 301 0.360

2 3 x 230 V RM 84 873 310 0.360

3 x 400 V RM 84 873 311 0.360

Auxiliary power supply characteristicsAuxiliary voltage(self-powered from terminals L1-L2)

V 230, 400

Operating range 0.81.2 x UnFrequency Hz 50-60 Maximum consumption VA 4 at Un, 8 at Un + 20 %Immunity to microbreaks ms 10Delay on power-up t3 s 1 maxDelay on power-down t2 300 maxCreepage distanceand clearance

Conforming to IEC 60664-1 kV 4kV/3

Input characteristics3-phase supply Rated voltage V 3 x 230, 3 x 400

Operating range V 185275, 320480Frequency (can be altered via switch beneath the device) Hz 50-60 Regeneration rate max 95 % of UnAsymmetry rate adjustment 520 % of UnThreshold setting accuracy Conforming to VDE 0435 20 % at full scaleTemperature drift 0.1 %/ CRepeat accuracy 1 % at full scaleFixed hysteresis 10 % of the threshold settingOutput characteristics

Output type Volt-free C/O contact, AgCdOBreaking capacity 2000 VA, 80 WMaximum breaking current V / 8 Minimum breaking current mA / 100 Maximum switching voltage V / 250 Electrical life AC-12 2000 VA - 105 operating cycles

AC-15 Cos = 0.3 - 6000 operating cyclesDC-13 L/R = 300 ms - 6000 operating cycles

Mechanical life 5 x 106 operating cyclesOther characteristics

Time delay in the event of fault t1 : s 0.510, Max : 1016Indication Supply Green LED

Relay Yellow LEDProtection class Terminal block IP 20

Enclosure IP 30Enclosure Self-extinguishing PC, panel or DIN rail mountedTerminal block clamping capacity

Without cable end mm2 2 x 2.5With cable end mm2 2 x 1.5Tightening torque Nm 0.6 max (M3 screw/IEC 947-1)

Temperature limits Operation C - 20+ 60 (conforming to IEC 68-2-14)Storage C - 30+ 70 (conforming to IEC 68-2-1/2)

Relative humidity Conforming to IEC 68-2-30 93 % without condensationVibrations Amplitude mm 0.35 (conforming to IEC 68-2-6) Frequency Hz 1055Insulation resistance Conforming to IEC 255-5 m > 100 at 500 VDielectric strength Conforming to IEC 255-5 kV 2.5/1 min/1 mA/50 HzImpulse voltage Conforming to IEC 255-5/664-1 kV 5/wave 1.2 - 50 sProduct certifications c UL us, CSA, RM 84 873 30 : GL

RM 84 873 300

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Zelio Control - measurementand control relays 5Voltage control relays for 3-phase supply,model RM 84 873

Controls overvoltage and undervoltage on its own power supply (window type).

RM 84 873 201: phase to phase / RM 84 873 211: between phase and neutral.

Minimum and maximum thresholds can be adjusted separately.

Absence of neutral detected on relay RM 84 873 211.Delay on crossing the upper or lower threshold,

adjustable between 0.1 and 10 seconds on the front panel of the device.

Overvoltage and undervoltage indicated by 2 yellow LEDs.

Power on indicated by 1 green LED.2 output relays: upper and lower threshold.2 separate time delays.

Operating principleThe two relays are energised when the measured voltages are between the minimum and maximum thresholds, which can be adjusted separately via two potentiometers on the front panel of the device.

If one or more voltages go outside the window between the two thresholds, the relay corresponding to the fault de-energises following a delay which can be adjusted on the front panel. Each relay can have its own individual time delay (0.1 to 10 s).

A hysteresis fixed at 3 % ensures bounce-free relay switching when the voltage levels return to a value between the upper and lower thresholds.

The device is not affected by the phase sequence, or by harmonic distortion.

A green LED indicates that the power supply is ON. Two yellow LEDs indicate when the upper and lower thresholds have been exceeded. They are lit when the voltages are within the set window.

0

R2

R1T1 T1

TrT2

3-phase supplyUpper threshold

Lower threshold

Lower threshold Upper thresholdRM 84 873 201 340392 408460RM 84 873 211 195225 235264

Dimensions

5

77233,6

57

100

78,5

89,7

99,3

45

4,2

References :page 5/25

Characteristics :page 5/25

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References,characteristics 5

Zelio Control - measurementand control relays 5Voltage control relays for 3-phase supply,model RM 84 873

ReferencesVoltage control relays for 3-phase supplyPower supplies measured Reference Weight

kg3 x 400 V RM 84 873 201 0.310

3 x 400 V + neutral RM 84 873 211 0.310

Supply characteristicsSupply voltage Un on terminals L1-L2 V 400, 30 % (50/60 Hz) Maximum power VA 4 at Un

8 at Un + 20 %Immunity to microbreaks ms 10Delay on pick-up s About 3Creepage distanceand clearance

Conforming to IEC 60664-1 kV 4kV/3

Control circuit characteristicsAdjustment of upper threshold 102115 % of UnAdjustment of lower threshold 8598 % of UnFault delay s 0.110 (0+ 50 %)Hysteresis About 3 %Setting accuracy 10 % Repeat accuracy Upper threshold 0.06 %

Lower threshold 0.09 %Temperature drift 0.05 %/COutput circuit characteristics

Output 2 C/O contacts, AgCdOBreaking capacity 2000 VA, 80 WMaximum breaking current A 8, 8Minimum breaking current mA 100, 100Maximum switching voltage V 250, 250Mechanical life 30 x 106 operating cyclesElectrical life AC-12 2000 VA - 105 operating cycles

AC-15 Cos = 0.3 - 6000 operating cyclesDC-13 L/R = 300 ms - 6000 operating cycles

Other characteristicsDelay on crossing the threshold s 0.110 Max : 1015)Indication Supply Green LED

Overvoltage relay Yellow LEDUndervoltage relay Yellow LED

Protection class Conforming to IEC 529-5

Terminal block IP 20Enclosure IP 50

Enclosure Self-extinguishing Pc, panel or DIN rail mountedTerminal capacity With cable end mm2 2 x 1.5

Without cable end mm2 2 x 2.5Tightening torque Conforming to IEC 947-1 Nm 0.6 max (M3 screw)Temperature limits Operation C - 20+ 60 (conforming to IEC 68-1-14)

Storage C - 30+ 70 (conforming to IEC 68-1-1/2)Relative humidity Conforming to IEC 68-2-30 93 % without condensationVibrationsConforming to IEC 682-6

Amplitude mm 0.35Frequency Hz 1055

Insulation resistance Conforming to IEC 255-5 M > 10 at 500 VDielectric strength Conforming to IEC 255-5 kV > 2.5/1min/1 mA/50 Hz Impulse voltage Conforming to IEC 255-5/664-1 kV 5, wave 1.2-50 sProduct certifications C UL us, CSA

RM 84 873 211

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