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K8DT-PZ



Трехфазное реле контроля напряжения, перекоса и чередования фаз и потери фазы

Защита электродвигателей и другого оборудования от повреждений из-за нестабильности напряжения в системе электропитания. Обнаружение повышенного и пониженного напряжения, асимметрии напряжений, нарушения порядка чередования фаз и потери фазы в трехфазной линии питания.

  • Обнаружение потери фазы во время работы двигателя
  • Переключение номинального напряжения с помощью DIP-переключателя для поддержки широкого спектра 3-фазных 3-проводных систем
  • Повышенная устойчивость к помехам инверторов
  • Ширина 17,5 мм — экономия пространства в шкафу управления
  • Технология Push-in plus упрощает подключение проводов
  • Соответствие UL упрощает ввоз в Северную Америку
  • Отверстия на два провода в каждой клемме для удобного подключения других устройств
  • Добавлены модели с высоконадежными транзисторными выходами
  • Соответствие Директиве RoHS

Ordering information

Rated input voltage1

Relay output

Order code

3-phase 3-wire mode 200, 220, 230, 240 VAC

Relay: SPDT contact output

K8DT-PZ1CN

Transistor: Open collector

K8DT-PZ1TN

3-phase 3-wire mode 380, 400, 415, 480 VAC

Relay: SPDT contact output

K8DT-PZ2CN

Transistor: Open collector

K8DT-PZ2TN

Note: The input range is set with a rotary switch.

Accessories

Front Cover (Order separately)

Appearance

Order code

 

Y92A-D1A

Specifications

Item

K8DT-PZ1

K8DT-PZ2

Rated input voltage

Three-phase, three-wire Mode: 200, 220, 230, or 240 VAC

Three-phase, three-wire Mode: 380, 400, 415, or 480 VAC

Input load

Approx. 1.7 VA

Approx. 2.7 VA

Operating value setting range

Overvoltage/Undervoltage
2% to 30% of rated input voltage

Asymmetry
5% to 22% of rated input voltage

The rated input voltage can be switched by using the DIP switches.

Operating value

Overvoltage/Undervoltage
Operates at 100% of set value.

Asymmetry
Asymmetry operating value = Rated input voltage × Asymmetry set value (%)

The asymmetry operation will function when the potential difference between the highest and lowest voltage phases equals or exceeds the asymmetry operating value.

Reset value

2% of operating value (fixed)

Reset method

Automatic reset

Operating time setting range

Overvoltage/ Undervoltage

0.1 to 30 s

Asymmetry

0.1 to 30 s

Phase sequence

0.1 s±0.05 s

Phase loss

0.1 s max.

Power ON lock time (LOCK)

1 s/5 s (switched by using the DIP switch)

Indicators

Power (PWR): Green, Output (OUT): Yellow, Alarm outputs (ALM): Red

Output form

Relay: SPDT contact output

Transistor: Open collector

Output relay ratings

Resistive load

5 A at 250 VAC
5 A at 30 VDC

Inductive load

1 A at 250 VAC
0.2 A at 48 VDC

Minimum load

5 VDC, 10 mA (reference values)

Mechanical life

10 million operations min.

Electrical life

5 A at 250 VAC or 30 VDC: 50,000 operations

3 A at 250 VAC or 30 VDC: 100,000 operations

Transistor output ratings

Contact form

SPST-NO (Open collector)

Rated voltage

24 VDC (maximum voltage: 26.4 VDC)

Maximum current

50 mA DC

Ambient operating temperature

−20 to 60°C (with no condensation or icing)

Storage temperature

−25 to 65°C (with no condensation or icing)

Case material

PC, UL 94 V-0

Weight

Approx. 100 g

Size in mm (H × W × D)

90×17.5×90

Input frequency

50/60 Hz

Overload capacity

Continuous 528 V

Repeat accuracy

Operating value

±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage)

Operating time

±50 ms (at 25°C and 65% humidity, rated power supply voltage)

Applicable standards

Conforming standards

EN 60947-5-1
Installation environment (pollution level 2, Overvoltage category III)

EMC

EN 60947-5-1

Safety standards

UL 60947-5-1 (Listing), Korean Radio Waves Act (Act 10564), CCC (GB 14048.5), LR (Category ENV1.2)2

Degree of protection

Terminals: IP20


1. The power supply voltage is the same as the rated input voltage.

2. Certification is pending for LR.

1. The power supply voltage is the same as the rated input voltage.

2. Certification is pending for LR.