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CROUZET CONTROL
CROUZET CONTROL

1 phase over/under voltage relay HUL, HUH

  • Two modules, HUL 0.2-60 V, HUH 15-600 V
  • Galvanic isolation control/measurement
  • Automatic detection of ac or dc
  • 35 mm cabinet with DIN rail

Product description

HUL and HUH control relays are used for monitoring 1-phase AC/DC voltages. The relay automatically detects the form of voltage that is to be measured. The relay requires a supply voltage. Using a rotary switch, selection can be made between over- or under-voltage, with or without memory. The switch position and consequently the control relay's function mode is detected when the operating voltage is switched on. If the switch is in the wrong position, the relay will remain deactivated and the LEDs will flash to indicate incorrect setting. If the switch position is changed during operation, all LEDs begin to flash but the unit will continue to function normally with the voltage set at the most recent power connection. The LEDs return to normal function when the switch has been returned to its original position, which was set before the first power connection. The limit value for over- or under-voltage is set with a potentiometer that is scaled in the percentage of the voltage range that is to be monitored. The hysteresis value is similarly set with a scale from 5-50 % of the set limit value. The hysteresis value cannot exceed the measurement range's limit value. Both relays are equipped with a time delay (Tt) to ignore temporary voltage deviations. Green LED (Un) indicates supply voltage OK. Yellow LED (R) indicates active relay output.


Without memory

With memory

Control relay

Control relay

1: Limit value

1: Limit value

2: Hysteresis

2: Hysteresis

3: Over-voltage

3: Over-voltage

4: Under-voltage

4: Under-voltage

5: Activation of operating voltage

5: Activation of operating voltage

6: Monitored voltage

6: Monitored voltage

7: Time delay (Tt)

7: Time delay (Tt)

 

Technical data

Supply voltage

24-240 V AC/DC 50/60 Hz ±10 % (wide range input voltage)

Galvanic isolation

Yes, operating voltage measurement

Power consumption

3.5 VA AC/0.6 W DC

Adjustable limit value

10-100 %

Adjustable hysteresis

5-50 %

Time delay (Tt)

0.1–3 s ±10 %

Time delay, start-up

<600 ms (static)

Output relay

Max. breaking current 5 A (2 change-over contacts)
Max. breaking voltage 250 V AC

Temperature

-20 °C to +50 °C

Weight

130 g

Approval

Ce-marking, (LVD)73/23/EEC-EMC 89/336/EEC, RoHs.WEEE

Mounting

DIN rail

Measurement range, HUL

E1-M

E2-M

E3-M

Adjustable range

0.2-2 V

1-10 V

6-60 V

Input resistance

6 Ω

30 Ω

180 Ω

Max. continual overload at 25 °C

10 V

30 V

150 V

Measurement range, EUH

E1-M

E2-M

E3-M

Adjustable range

15-150 V

30-300 V

60-600 V

Input resistance

150 Ω

300 Ω

600 Ω

Max. continual overload at 25 °C

250 V

500 V

700 V

 

Dimensions

Control relay

 

Connection

Control relay

F1: Fast-blow fuse 100 mA (recommendation)
NB: When monitoring DC voltage from the same power supply that is connected at
A1 or A2, the connection point M must be directly connected to minus (-) in this power supply.

 

Order number

Order no.

Description

Supply voltage

84872120

HUL voltage control, over-/under-voltage 0.2-60 V AC/DC

24-240 V AC/DC

84872130

HUH voltage control, over-/under-voltage 15-600 V AC/DC

24-240 V AC/DC

 

Variants

Articles Measurement range E1-M Measurement range E2-M Measurement range E3-M
0,2-2 V 1-10 V 6-60 V
15-150 V 30-300 V 60-600 V

Variant

Control relay

84872120
Voltage Monitor Relay HUL 24-240V ac/dc

Specifications

Adjustable limit value from 10 %
Adjustable limit value to 100 %
Approvals CE, CSA, RoHS, UL
Breaking capacity 5A, 250V AC/DC
Function Under/Overvoltage
IP class connection IP20
IP class housing IP30
Measurement range E1-M 0,2-2 V
Measurement range E2-M 1-10 V
Measurement range E3-M 6-60 V
Output Relay 2 pole C/O
Storage temperature max 70 °C
Storage temperature min -40 °C
Supply voltage 24-240V ac/dc
Temperature operational max 50 °C
Temperature operational min -20 °C
Time delay startup 0,6 s
Time delay when exceeding the limit value 0,1-3s
Weight 130 g

Measurements and connections

Technical illustrations

  • F1: Fast-blow fuse 100 mA (recommendation) <br />NB: When monitoring DC voltage from the same power supply that is connected at <br />A1 or A2, the connection point M must be directly connected to minus (-) in this power supply.

    F1: Fast-blow fuse 100 mA (recommendation)
    NB: When monitoring DC voltage from the same power supply that is connected at
    A1 or A2, the connection point M must be directly connected to minus (-) in this power supply.

  • Without memory<br />1: Limit value<br />2: Hysteresis<br />3: Over-voltage<br />4: Under-voltage<br />5: Activation of operating voltage<br />6: Monitored voltage<br />7: Time delay (Tt)

    Without memory
    1: Limit value
    2: Hysteresis
    3: Over-voltage
    4: Under-voltage
    5: Activation of operating voltage
    6: Monitored voltage
    7: Time delay (Tt)

  • With memory<br />1: Limit value<br />2: Hysteresis<br />3: Over-voltage<br />4: Under-voltage<br />5: Activation of operating voltage<br />6: Monitored voltage<br />7: Time delay (Tt)

    With memory
    1: Limit value
    2: Hysteresis
    3: Over-voltage
    4: Under-voltage
    5: Activation of operating voltage
    6: Monitored voltage
    7: Time delay (Tt)

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