CROUZET CONTROL
3 phase, phase control HWUA
Control relay for phase monitoring with regeneration of voltage and asymmetry. Adjustable switch at the front for adjustment of correct voltage in 3-phase networks. Voltage switch's position is not registered until the operating voltage is switched on. If the switch position is changed during operation, all LEDs (LED indications) begin to flash but the unit will continue to function normally with the voltage that was set at the most recent power connection. The LEDs return to normal function when the correct voltage is restored. The relay monitors the correct phase sequence between the three phases or if any phase is lacking (measured U<0.7xUn), 70 % of the returned voltage. The asymmetry setting is made at the front between 5 and 15 % (the rated voltage between the phases Un x degree of asymmetry, %). Deviations in over-/under-voltage are adjustable between -2 and -20 % of the line voltage (window relay function). In the event of incorrect phase sequence or phase interruption, the relay immediately produces an alarm (drops out), and in the event of an asymmetry or voltage fault, the relay drops out after the set time Tt. If the power is switched on with a measured fault, the relay remains deactivated. Fault indication is accomplished with LEDs, which also differentiates between the various fault causes. If a fault remains after the time delay, a non-flashing LED indicates an asymmetry fault and a flashing LED indicates over-/under-voltage. The LED indication that shows this is labelled with Def. on the front of the relay. Green LED (Un) indicates supply voltage OK. Yellow LED (R) indicates active relay output.
- Triggers alarm upon incorrect phase sequence, phase interruption, asymmetry and over-/under-voltage
- Adjustable line voltage
- Measures returned voltage to 70 %
- 35 mm cabinet with DIN rail
Selected variant
Technical data
| Approvals | CSA, GL, RoHS, UL |
|---|---|
| Breaking capacity | 5A, 250V AC/DC |
| Function | Phase Sequence, Phase Failure, Asymmetry, Under/Overvoltage |
| IP class connection | IP20 |
| IP class housing | IP30 |
| Mounting | 35 mm DIN-Rail |
| Output | Relay |
| Selection of rated voltage | 220, 380, 400, 415, 440, 480 V |
| Storage temperature max | 70 °C |
| Storage temperature min | -40 °C |
|---|---|
| Supply voltage | 3 x 220-480V AC |
| Temperature operational max | 50 °C |
| Temperature operational min | -20 °C |
| Time delay alarm | 0.2 s |
| Time delay startup | 0.5 s |
| Time delay when exceeding the limit value | 0,1-10s |
| Weight | 130 g |
Downloads
Technical illustrations
Phase interruption, phase sequence and asymmetry
1: L1
2: L2
3: L3
4: Limit value for asymmetry
5: Hysteresis
6: Relay
7: Delay upon exceeding limit value Tt
Over and under voltage
1: Limit value, over-voltage
2: Hysteresis
3: Limit value, under-voltage
4: L1, L2, L3
5: Relay
6: Delay upon exceeding limit value Tt
Product description
Control relay for phase monitoring with regeneration of voltage and asymmetry. Adjustable switch at the front for adjustment of correct voltage in 3-phase networks. Voltage switch's position is not registered until the operating voltage is switched on. If the switch position is changed during operation, all LEDs (LED indications) begin to flash but the unit will continue to function normally with the voltage that was set at the most recent power connection. The LEDs return to normal function when the correct voltage is restored. The relay monitors the correct phase sequence between the three phases or if any phase is lacking (measured U<0.7xUn), 70 % of the returned voltage. The asymmetry setting is made at the front between 5 and 15 % (the rated voltage between the phases Un x degree of asymmetry, %). Deviations in over-/under-voltage are adjustable between -2 and -20 % of the line voltage (window relay function). In the event of incorrect phase sequence or phase interruption, the relay immediately produces an alarm (drops out), and in the event of an asymmetry or voltage fault, the relay drops out after the set time Tt. If the power is switched on with a measured fault, the relay remains deactivated. Fault indication is accomplished with LEDs, which also differentiates between the various fault causes. If a fault remains after the time delay, a non-flashing LED indicates an asymmetry fault and a flashing LED indicates over-/under-voltage. The LED indication that shows this is labelled with Def. on the front of the relay. Green LED (Un) indicates supply voltage OK. Yellow LED (R) indicates active relay output.
Related
We now offer cable
What tri-rated cable are you currently using? Does the product or service you receive leave you wanting more? It’s time to ask the question. Because now, you’ve got options.
Terminal Blocks For Push In Connection Systems
This innovative push-in connection system enables time savings of up to 50%, whether you're wiring control panels or managing complex installations
Electrical Protection in the Solar Era: How to Choose Fuses for Modern Photovoltaic Installations
Solar energy has become a pillar of the global energy transition. The experts at OEM Automatic have broken down the role of photovoltaic fuses and their contribution to solar systems, as well as, how to choose the right solution for you.
Fuse links for semiconductor protection
Ultra fast-acting fuse links engineered specifically to shield delicate semiconductor devices.
Lightning and surge protection for DC and control signals
Do you need reliable protection for measuring and control equipment? DEHN YellowLine delivers voltage surge protection tailored for building, measuring, and control systems
MCBs vs ECBs: Which is best for securing DC circuits?
Choosing the right circuit breaker is important for protecting DC circuits. Two primary forms of protection are MCBs and ECBs. The experts at OEM Automatic breakdown the two circuit breakers for you!
