Monitoring Relays

Monitoring Relays

GENERAL INFORMATIONS

TECHNICAL DATA

Mechanical design

  • Self-extinguishing plastic housing, IP rating IP40 Mounted on DIN-rail TS 35 according to EN 50022
  • Mounting position:
    • any
  • Shockproof terminal connection accordting to VBG 4 (PZ1 required), IP rating IP20
  • Tightening torque:
    • max. 1Nm
  • Terminal capacity:
    • 1 x 0.5 to 2.5mm2 with/without multicore cable end
    • 1 x 4mm2 without multicore cable end
    • 2 x 0.5 to 1.5mm2 with/without multicore cable end
    • 2 x 2.5mm2 flexible without multicore cable end

Output circuit

  • 1 potential free change over contact
  • Rated voltage:
    • 250V AC
  • Switching capacity:
    • 1250VA (5A / 250V)
  • Fusing:
    • 5A fast acting
  • Mechanical life:
    • 20 x 106 operations
  • Electrical life:
    • 2 x 105 operations at 1000VA resistive load
  • Switching frequency:
    • max. 6/min at 1000VA resistive load (in accordance with IEC 60947-5-1)
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4kV

Accuracy

  • Base accuracy: ±5% of rated voltage
  • Adjustment accuracy: 5% of maximum scale value
  • Repetition accuracy: 2%
  • Voltage influence: -
  • Temperature influence: ≤1%

Ambient conditions

  • Ambient temperature:
    • -25 to +55°C
  • Storage temperature:
    • -25 to +70°C
  • Transport temperature:
    • -25 to +70°C
  • Relative humidity:
    • 15% to 85% (in accordance with IEC 60721-3-3class 3K3)
  • Pollution degree:
    • 2, if built in 3

Monitoring Relays

VOLTAGE MONITORING RELAY WITH ADJUSTABLE TIME RANGE URU20301

  • Voltage monitoring in 3-phase mains
  • Undervoltage monitoring
  • ON delay 5…15 min.
  • Supply voltage = measuring voltage
  • 1 change over contact
  • Width 17.5 mm
  • Installation design

Functions

Undervoltage monitoring for 3-phase mains with fixed threshold voltage and fi xed hysteresis. All measuring inputs (L1, L2 and L3) must be connected to phase voltage. If single or 2-phase monitoring is required, unused input terminals (L) must be connected to mains voltage to have proper L-N voltage on the terminals L1, L2 and L3. If there is a reverse voltage on account of a consumer, which exeeds the fixed threshold, detection of phase failure isn't possible.

Undervoltage monitoring with ON delay (Option E)

When the voltage of all connected phases exeeds the fixed threshold by more than the fixed hysteresis, the set interval t begins (green LED U/t flashes). After the set interval t has expired, the output relay R switches into on-position (yellow LED R illuminated, green LED U/t illuminated). When the voltage of one of the connected phases falls below the fixed threshold, the output relay R switches into off-position (yellow LED R not illuminated, green LED U/t not illuminated).

Time ranges

  • Time range
    • Adjustment range
  • Tripping delay:
    • fixed, approx. 200ms
  • ON delay t:
    • 5min to 15min

Input circuit

  • Supply voltage:
    • (=measuring voltage)
  • Terminals:
    • N-L1-L2-L3
  • Rated voltage UN:
    • 3N~400/230V
  • Tolerance:
    • -30% to +15% of U N
  • Rated consumption:
    • 6VA (0,8W)
  • Rated frequency:
    • 48 to 63Hz
  • Duty cycle:
    • 100%
  • Reset time:
    • 500ms
  • Hold-up time: -
  • Drop out voltage:
    • determined by undervoltage detection (see measuring circuit)
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4kV (in accordance with IEC 60664-1)

Indicators

  • Green LED U/t ON:
    • all 3 tensions are allright
  • Green LED U/t flashes:
    • indication of time period
  • Yellow LED ON/OFF:
    • indication of relay output

Measuring circuit

  • Measuring variable:
    • AC sinus, 48 to 63Hz
  • Measuring input:
    • (=supply voltage)
  • Terminals:
    • N-L1-L2-L3
  • Overload capacity:
    • determined by tolerance specified for supply voltage
  • Input resistance: -
  • Switching threshold US:
    • fixed 165V (L-N)
  • Hysteresis H:
    • approx. 5%
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4kV

VOLTAGE MONITORING RELAY WITH ADJUSTABLE TIME RANGE URU20301

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Voltage monitoring relay

  • 17,5x87x65
  • URU20301

Monitoring Relays

1PH. VOLTAGE MONITORING RELAY UR5U1011

  • AC/DC voltage monitoring in 1-phase mains
  • Undervoltage monitoring
  • 1 change over contact
  • Width 17.5 mm
  • Installation design

TECHNICAL DATA

Functions

AC/DC undervoltage monitoring in 1-phase mains with adjustable threshold and fixed hysteresis.

  • UNDER
    • Undervoltage monitoring

The supply voltage U must be constantly applied to the device (green LED illuminated).

The output relay R switches into on-position (yellow LED illuminated) when the measured voltage U exceeds the value adjusted at the Usregulator. The output relay R switches into off-position (yellow LED not illuminated) when the measured value for the voltage falls below the set value by more than the fixed hysteresis.

Time ranges

  • Adjustment range
    • Tripping delay (Delay): -

Indicators

  • Green LED ON/OFF:
    • indication of supply voltage
  • Yellow LED ON/OFF:
    • indication of relay output

Input circuit

  • Supply voltage:
    • (= measuring voltage)
  • Terminals:
    • 230V AC
      • E-F3
    • 24V AC
      • E-F2 (distance > 5mm)
    • 24V DC
      • E-F1(+)
  • Rated voltage UN:
    • see table ordering information or printing on the unit
  • Tolerance:
    • -25% to +20% of U N
  • Rated consumption:
    • 230V AC
      • 10VA (0.6W)
    • 24V AC
      • 1.3VA (0.8W)
    • 24V DC
      • 0.6W
  • Rated frequency:
    • AC 48 to 63Hz
  • Duration of operation:
    • 100%
  • Reset time:
    • 500ms
  • Wave form:
    • DC, AC Sinus
  • Hold-up time: -
  • Drop-out voltage:
    • > 60% of supply voltage
  • Overvoltage category:
    • III (according to IEC 60664-1)
  • Rated surge voltage:
    • 4kV

Measuring circuit

  • Measuring variable:
    • DC or AC Sinus, 48 to 63Hz
  • Measuring input:
    • (= supply voltage)
  • Terminals:
    • 230V AC
      • E-F3
    • 24V AC
      • E-F2 Distance between the devices musst be greater than 5mm!
    • 24V DC
      • E-F1(+)
  • Overload capacity:
    • 120% of UN
  • Input resistance: -
  • Switching threshold Us:
    • 75% – 115%
  • Hysteresis H:
    • fix 5%
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4kV

1PH. VOLTAGE MONITORING RELAY UR5U1011

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Voltage monitoring relay 1-phase

  • 17,5x87x65
  • UR5U1011

Monitoring Relays

3PH. VOLTAGE MONITORING RELAY WITH ADJUSTABLE VOLTAGE RANGE

  • Voltage monitoring in 3-phase mains
  • Undervoltage monitoring
  • Supply voltage = measuring voltage
  • 1 change over contact
  • Width 17.5 mm
  • Installation design

TECHNICAL DATA

Functions

Undervoltage monitoring in 3-phase mains (each phase against the neutral wire) with fixed or variable threshold voltage US and fixed hysteresis.

Time range

  • Adjustment range
    • Tripping delay : fixed, approx. 200ms

Indicators

  • Green LED L1 ON/OFF:
    • indication of supply voltage L1-N
  • Green LED L2 ON/OFF:
    • indication of supply voltage L2-N
  • Green LED L3 ON/OFF:
    • indication of supply voltage L3-N
  • Yellow LED ON/OFF:
    • indication of relay output

Input circuit

  • Supply voltage:
    • (= measured voltage)
  • Terminals:
    • N-L1-L2-L3
  • Rated voltage UN:
    • see table ordering information or printing on the unit
  • Tolerance:
    • -30% to +10% of UN
  • Rated consumption:
    • 8VA (0,8W)
  • Rated frequency:
    • AC 48 to 63Hz
  • Duty cycle:
    • 100%
  • Reset time:
    • 500ms
  • Hold-up time: -
  • Drop out voltage:
    • determined by undervoltage detection (see measured circuit)
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4kV

Measuring circuit

  • Measuring variable:
    • AC sinus, 48 to 63Hz
  • Measuring input:
    • (= supply voltage)
  • Terminals:
    • N-L1-L2-L3
  • Overload capacity:
    • determined by tolerance specified for supply voltage
  • Input resistance: -
  • Switching threshold US:
    • see table ordering information or printing on the unit
  • Hysteresis H:
    • approx. 5%
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4kV

3PH. VOLTAGE MONITORING RELAY WITH ADJUSTABLE VOLTAGE RANGE

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Voltage monitoring relay 3-phase

  • 17,5x87x65
  • UR5U3011

Monitoring Relays

THERMISTOR MONITORING RELAY UR5R1021

  • Tripping unit for temperature monitoring of the motor winding with and without short circuit monitoring of the thermistor line(selectable by means of terminals)
  • Optional evaluation of one thermal contact
  • Test function with integrated reset key
  • Rated isolated voltage on the sensor circuit up to 690V
  • 1 change over contact
  • Width 35mm
  • Installation design

TECHNICAL DATA

Functions

Temperature monitoring of the motor winding (max. 6 PTC) with fault latch for temperature sensors in accordance with DIN 44081, short circuit monitoring of the thermistor line (selectable by means of terminals), integrated test/reset key.

Temperature monitoring of the motor winding with fault latch. If the supply voltage U is applied (green LED illuminated) and the cumulative resistance of the PTC-circuit is less than 3.6kΩ (standard temperature of the motor), the output relay switches into on-position. Pressing the test/reset key under this conditions forces the output relay to switch into off-position. It remains in state as long as the test/reset key is pressed and thus the switching function can be checked in case of fault. The test function is not effective by using an external reset key. When the comulative resistance of the PTC-circuit exceeds 3.6kΩ(at least one of the PTCs has reached the cut-off temperature), the output relay switches into off-position (red LED illuminated). The output relay switches into on-position again (red LED not illuminated), if the cumulative resistance drops below 1.6Ω5k by cooling down of the PTC and either a reset key (internal or external) was pressed or the supply voltage was disconnected and re-applied.

Time ranges

  • Adjustment range
    • Start-up suppression time (Start): -
    • Tripping delay (Delay): -

Indicators

  • Green LED ON:
    • indication of supply voltage
  • Red LED ON/OFF:
    • indication of failure

Connections

  • Monitoring Temperature sensor
  • Monitoring Thermal contact

Input voltage

  • Supply voltage: 230V AC
  • Terminals: A1-A2
  • Rated voltage UN: 230V AC
  • Tolerance: -15% to +10% of U N
  • Rated consumption: 1,3VA (1W)
  • Rated frequency: AC 48 to 63Hz
  • Duty cycle: 100%
  • Reset time: 250ms
  • Residual ripple for DC: 50ms
  • Drop-out voltage: >30% of the supply voltage
  • Overvoltage category: III (in accordance with IEC 60664-1)
  • Rated surge voltage: 6kV

Measuring circuit

  • Terminals: T1-T2 or T1-T3
  • Initial resistance: <1.5kΩ
  • Response value (relay in off-position): ≤3.6kΩ
  • Release value (relay in on-position): ≤1.65kΩ
  • Disconnection (short circuit thermistor): yes at T1-T2 no at T1-T3
    Measuring voltage T1-T2: ≤7.5VΩat R≤4.0kΩ (in accordance with EN 60947-8)
  • Overvoltage category: III (in accordance with IEC 60664-1)
  • Rated surge voltage: 6kV

Control contact R

  • Function: connection of an external reset key
  • Loadable: no
  • Line length R1-R2: max. 10m (twisted pair)
  • Control pulse length: min. 50ms
  • Reset: potential free normally open contact, terminals R1-R2

THERMISTOR MONITORING RELAY UR5R1021

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Thermistor-monitoring relay

  • 35x87x65
  • UR5R1021

Monitoring Relays

LEVEL MONITORING RELAY UR5L1021

  • Level monitoring of conductive liquids
  • Multifunction
  • Secure isolation of the measuring circuit
  • 1 change over contact
  • Width 35mm
  • Installation design

TECHNICAL DATA

Functions

Level monitoring of conductive liquid, timing for tripping delay and turn-off delay seperatly adjustable and the following functions (selectable by means of rotary switch):

  • Pump up pump up or minimum monitoring
  • Pump down pump down or maximum monitoring

Pump up

Connection of the probe rods E1, E2 and E3. Alternatively the electrically conducting container can be connected in lieu of the test probe E3. When the air-fluid level falls below the minimum probe E2 the set interval of tripping delay (Delay ON) begins. After the expiration of the interval, the output relays R switches into on-position (yellow LED illuminated). When the air-fluid level again rises above the maximum probe E1, the set interval of turn-off delay (Delay OFF) begins. After the expiration of the interval the output relays R switches into off-position (yellow LED not illuminated).

Pump down

Connection of the probe rods E1, E2 and E3. Alternatively the electrically conducting container can be connected in lieu of the test probe E3. When the maximum probe E1 gets moistened the set interval of tripping delay (Delay ON) begins. After the expiration of the interval the output relays R switches into on-position (yellow LED illuminated). When the air-fluid level falls below the minimum probe E2, the set interval of turn-off delay (Delay OFF) begins. After the expiration of the interval, the output relays R switches into offposition (yellow LED not illuminated).

PROBES FOR LEVEL MONITORING

  • URL 90010, URL 90020, URL 90030 types are coated with Nylon 66
  • Operating temperature max. 70 °C
  • Maximum pressure 1000 kPa
  • Can be used universally expect for special areas of the food industry where Nylon 66 is not approved for use as an insulator.

PROBES FOR LEVEL MONITORING

  • DESCRIPTION
    • ORDER NO.
  • Level sensor, 1 rod
    • URL90010
  • Level sensor, 2 rods
    • URL90020
  • Level sensor, 3 rods
    • URL90030
  • Sensor rod extension, 900 mm
    • URL90011

Minimum monitoring (Pump up)

Connection the probe rods E2 and E3 (bridge E1-E3). Alt-er natively the electrically conducting container can be connected in lieu of the test probe E3. When the air-fluid level falls below the probe E2 the set interval of tripping delay (Delay ON) begins. After the expiration of the interval, the output relays R switches into on-position (yellow LED illuminated). When the air-fluid level again rises above the probe E2, the set interval of turnoff delay (Delay OFF) begins. After the expiration of the interval the output relays R switches into off-position (yellow LED not illuminated).

Maximum monitoring (Pump down)

Connection of probe rods E2 and E3 (bridge E1-E3). Alternatively the electrically conducting container can be connected in lieu of the test probe E3. When the probe E2 gets moistened the set interval of tripping delay (Delay ON) begins. After the expiration of the interval the output relays R switches into on-position (yellow LED illuminated). When the air-fluid level sinks below the probe E2, the set interval of turn-off delay (Delay OFF) begins. After the expiration of the interval the output relays R switches into off-position (yellow LED not illuminated).

Time ranges

  • Adjustment range
    • Tripping delay (Delay ON): 0.5s to 10s
    • Turn-off delay (Delay OFF): 0.5s to 10s

Indicators

  • Green LED ON:
    • indication of supply voltage
  • Yellow LED ON/OFF:
    • indication of output relay

Input circuit

  • Terminals:
    • A1-A2
  • Rated voltage UN:
    • 230V AC
  • Tolerance:
    • -15% of +10% of U N
  • Rated consumption:
    • 2VA (1.0W)
  • Rated frequency:
    • AC 48 to 63Hz
  • Duty cycle:
    • 100%
  • Reset time:
    • 500ms
  • Hold-up time: -
  • Drop-out voltage:
    • >30% of supply voltage
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 6kV

Measuring circuit

  • Measuring input:
    • conductive probes (Type SK1, SK2, SK3)
  • Terminals:
    • E1-E2-E3
  • Sensitivity:
    • 0,25 to 100kΩ (4mS to 10μS)
  • Sensor voltage:
    • 12V AC
  • Sensor current:
    • max. 7mA
  • Wiring distance (capacity of cable 100nF/km):
    • max. 1000m (set value <50%)
    • max. 100m (set value 100%)
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 6kV

 

LEVEL MONITORING RELAY UR5L1021

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Level monitoring relay

  • 35x87x65
  • UR5L1021

Monitoring Relays

CURRENT MONITORING RELAY UR5I1011

  • AC current monitoring in 1-phase mains
  • 1 change over contact
  • Width 17.5 mm
  • Installation design

Functions

AC current monitoring in 1-phase mains with adjustable threshold and fixed hysteresis.

The supply voltage U must be constantly applied to the device (green LED illuminated). The output relay R switches into on-position (yellow LED illuminated) when the measured current exceeds the value adjusted at the Isregulator. The output relay R switches into off-position (yellow LED not illuminated) when the measured value for the current falls below the set value by more than the fixed hysteresis.

Time ranges

  • Adjustment range
    • Tripping delay (Delay): -

Indicators

  • Green LED ON:
    • indication of supply voltage
  • Yellow LED ON/OFF:
    • indication of relay output

Input circuit

  • Supply voltage:
    • 230 V AC
  • Terminals:
    • Li-N
  • Tolerance:
    • -15% to +15% of U N
  • Rated consumption:
    • 5 VA (0,8 W)
  • Rated frequency:
    • AC 48 to 63 Hz
  • Duty cycle:
    • 100%
  • Reset time:
    • 500 ms
  • Wave form:
    • Sinus
  • Hold-up time: -
  • Drop out voltage:
    • >20% of rated voltage
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4 kV

Measuring circuit

  • Measuring variable:
    • AC sinus, 48 to 63 Hz
  • Measuring input:
    • 5 A AC
  • Terminals:
    • Li, Lk
  • Overload capacity:
    • 7 A
  • Input resistance:
    • 10 mΩ
  • Switching threshold Is:
    • 10% to 100% of IN
  • Hysteresis H:
    • fixed 10%
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4 kV

CURRENT MONITORING RELAY UR5I1011

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Current monitoring relay 1-phase

  • 17,5x87x65
  • UR5I1011

Monitoring Relays

PHASE MONITORING RELAY UR5P3011

  • Voltage monitoring in 3-phase mains
  • Monitoring of phase sequence, phase failure, asymmetrie

TECHNICAL DATA

Functions

Monitoring of phase sequence, phase failure and asymmetry with adjustable asymmetrie, connection of neutral wire optional.

Phase sequence monitoring

When all the phases are connected in the correct sequence and the measured asymmetry is less than the fixed value, the output relay switches into on-position (yellow LED illuminated). When the phase sequence changes, the output relay switches into off-position (yellow LED not illuminated).

Asymmetry monitoring

The output relay R switches into off-position (yellow LED not illuminated) when the asymmetrie exceeds the value set at the ASYM-regulator. Reverse voltages of a consumer (e.g. a motor which continues to run on two phases only) do not effect the disconnection.

Phase failure monitoring

The output relay switches into off-position (yellow LED not illuminated), when one of the three phases fails.

Time ranges

  • Tripping delay:
    • fixed, approx. 100 ms

Indicators

  • Green LED ON:
    • indication of supply voltage
  • Yellow LED ON/OFF:
    • indication of relay output

Input circuit

  • Supply voltage:
    • (= measured voltage)
  • Terminals:
    • (N)-L1-L2-L3
  • Rated voltage UN:
    • 3(N)~400/230V AC
  • Tolerance:
    • -30% to +30% of U N
  • Rated consumption:
    • 8 VA (0,8 W)
  • Rated frequency:
    • AC 48 to 63 Hz
  • Duty cycle:
    • 100%
  • Reset time:
    • 500 ms
  • Hold-up time: -
  • Drop out voltage:
    • >20% of the supply voltage
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4 kV

Measuring circuit

  • Measuring variable:
    • 3(N)~, sinus, 48 to 63 Hz
  • Measuring input:
    • (= supply voltage)
  • Terminals:
    • (N)- L1- L2- L3
  • Overload capacity:
    • determined by tolerance specified for supply voltage
  • Input resistance: -
  • Asymmetry:
    • 5% to 25% adjustable, or disengageable
  • Overvoltage category:
    • III (in accordance with IEC 60664-1)
  • Rated surge voltage:
    • 4 kV

PHASE MONITORING RELAY UR5P3011

DESCRIPTION

  • DIM. (WxHxD) mm
  • ORDER NO.

Monitoring relay 3-phase

  • 17,5x87x65
  • UR5P3011

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