HUL

KEY FEATURES

  • Control of AC and DC voltages
  • Automatic recognition of AC/DC
  • Measurement ranges HUL from 0.2 V to 60 V
  • Measurement ranges HUH from 15 V to 600 V
  • Choice between under and overvoltage
  • True RMS measurement
  • Selectable latching (memory) function
FunctionsMeasurement rangeNominal voltage (V)Code
Under/Overvoltage0,2 V →60 V24 →240 V ∿/⎓84872120

Specifications


Measurement range 0,2 V →60 V E1 - M : 0,2 →2 V E2 - M : 1 →10 V E3 - M : 6 →60 V
Input resistance E1 - M : 6 KΩ E2 - M : 30 KΩ E3 - M : 180 KΩ
Permanent overload at 20 °C E1 - M : 10 V E2 - M : 30 V E3 - M : 150 V

Supply voltage Un 24 V →240 V ∿/⎓
Voltage supply tolerance -15 % / +10 %
Operating range 20,4 V →264 V ∿/⎓
Polarity with ⎓ voltage No
∿ supply voltage frequency 50 / 60 Hz ±10 %
Galvanic isolation of power supply/measurement No
Power consumption at Un 3.5 VA in AC/0.6 W in DC
Immunity from micro power cuts 10 ms

Frequency of measured signal 0 Hz, 40 →70 Hz
Max. measuring cycle time 30 ms/True RMS measurement
Threshold adjustment 10 →100 % of the range
Hysteresis Adjustable from 5 →50 % of displayed threshold
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

Delay on thresold crossing Tt 0,1 →3 s (0, + 10 %)
Repetition accuracy with constant parameters ± 2 %
Reset time 1500 ms
Delay on pick-up < 600 ms

Type of output 1 double changeover relay
Type of contacts No cadmium
Maximum breaking voltage 250 V ∿/ ⎓
Max. breaking current 5 A ∿/⎓
Min. breaking current 10 mA / 5 V⎓
Electrical life (number of operations) 1 x 105
Breaking capacity (resistive) 1250 VA ∿
Maximum rate 360 operations/hour at full load
Operating categories acc. to IEC/EN 60947-5-1 AC12, AC13, AC14, AC15, DC12, DC13, DC14
Mechanical life (operations) 30 x 106

Nominal insulation voltage IEC/EN 60664-1 250 V
Insulation coordination (IEC/EN 60664-1) Overvoltage category III : degree of pollution 3
Rated impulse withstand voltage (IEC/EN 60664-1) 4 KV (1,2 / 50 μs)
Dielectric strength (IEC/EN 60664-1) 2 KV AC 50 Hz 1 min.
Insulation resistance (IEC/EN 60664-1) > 500 MΩ / 500 V ⎓

Display power supply Green LED
Display relay 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/EN 60695-2-11
Protection (IEC/EN 60529) Terminal block : IP 20 Casing : IP 30
Weight 130 g
Connecting capacity IEC/EN 60947-1 Rigid : 1 x 42 - 2 x 2.52 mm2 1 x 11 AWG - 2 x 14 AWG Flexible with ferrules : 1 x 2.52 - 2 x 1.52 mm2 1 x 14 AWG - 2 x 16 AWG
Max. tightening torques IEC/EN 60947-1 0,6 →1 Nm / 5,3 →8,8 Lbf.In
Operating temperature IEC/EN 60068-2 -20 →+50 °C
Storage temperature IEC/EN 60068-2 -40 →+70 °C
Humidity IEC/EN 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/EN 60068-2-6 5 g

Product standard IEC/EN 60255-1
Electromagnetic compatibility (EMC) IEC/EN 61000-6-1, IEC/EN 61000-6-2, IECI/EN 61000-6-3, IEC/EN 61000-6-4
Certifications UL, CSA
Marking CE (DBT) 2006/95/EC - EMC 2004/108/EC
Conformity with environmental directives RoHS

Technical sketches

HUL-HUH

HUL-HUH
HUL and HUH control relays are designed to control AC or DC voltages. They automatically recognise the shape of the DC or AC signal (50 or 60  Hz). 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 function 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 under or overvoltage threshold value is set by a graduated potentiometer as a percentage of the U scale to be monitored. The hysteresis is set by a graduated potentiometer from 5 to 50 % of the preset threshold. The hysteresis value cannot be higher than the extremes of the measurement range.

HUL-HUH - Under/overvoltage - without latching

HUL-HUH - Under/overvoltage - without latching
Legend
1-
Threshold
2-
Hysteresis
3-
Overvoltage function relay
4-
Undervoltage function relay
5-
Unit power-up
6-
Controlled voltage
7-
Delay on threshold crossing (Tt)
In overvoltage mode, if the controlled voltage exceeds the preset threshold for longer than the time set on the front face (0.1 to 3 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 3 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.

HUL-HUH - Under/overvoltage - with latching

HUL-HUH - Under/overvoltage - with latching
Legend
1-
Threshold
2-
Hysteresis
3-
Overvoltage function relay
4-
Undervoltage function relay
5-
Unit power-up
6-
Controlled voltage
7-
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.

HUL-HUH

HUL-HUH

HUL-HUH

HUL-HUH
Legend
1-
1 A fast-blow fuse or cut-out
: When controlling DC voltage from the same source supplying terminals A1 and A2, terminal M must be connected directly to the "minus" pole of this power supply.
PH RMC2 HUL

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