K8AK-PW

Трехфазное реле контроля напряжения

Одно реле одновременно контролирует превышение и понижение напряжения в 3-фазных, 3-проводных или 4-проводных линиях электропитания. Выбор работы с 3-фазной 3-проводной или 3-фазной 4-проводной линией производится с помощью переключателя.

Контроль превышения/понижения напряжения: задержка срабатывания регулируется в пределах от 0.1 до 30 с
Состояние реле легко контролируется по светодиодному индикатору
Возможны раздельные выходы для сигнализации превышения и понижения напряжения
Способ сброса: автоматический
Блокировка срабатывания при подаче питания: 1 с или 5 с

Ordering information

Rated input		Order code
3-phase 3-wire mode	200, 220, 230, 240 VAC	K8AK-PW1
3-phase 4-wire mode	115, 127, 133, 138 VAC	K8AK-PW1
3-phase 3-wire mode	380, 400, 415, 480 VAC	K8AK-PW2
3-phase 4-wire mode	220, 230, 240, 277 VAC	K8AK-PW2

Specifications

Ambient operating temperature		-20 to 60°C (with no condensation or icing)
Storage temperature		-25 to 65°C (with no condensation or icing)
Altitude		2,000 m max.
Voltage fluctuation rang		85% to 110% of rated input voltage
Input frequency		50/60 Hz (AC power supply)
Output relays (2 × SPDT, normally closed operation)	Resistive load	5 A at 250 VAC or at 30 VDC
	Maximum contact voltage	250 VAC or 30 VDC
	Maximum contact current	5 A
	Maximum switching capacity	1,250 VA, 150 W
	Mechanical life	10,000,000 operations
	Electrical life	50,000 operations at 5 A, 250 VAC or 30 VDC
Degree of protection		Terminal section: IP20
Case material		PC and ABS
Weight		Approx. 150 g
Rated input voltage	K8AK-PW1	3-phase, 3-wire mode: 200, 220, 230, 240 VAC, 3-phase, 4-wire mode: 115, 127, 133, 138 VAC
Rated input voltage	K8AK-PW2	3-phase, 3-wire mode: 380, 400, 415, 480 VAC, 3-phase, 4-wire mode: 220, 230, 240, 277 VAC
Operation (overvoltage and undervoltage)	Operating value setting range	Overvoltage = -30% to 25% of maximum rated input voltage1 Undervoltage = -30% to 25% of maximum rated input voltage1
Operation (overvoltage and undervoltage)	Operating value	100% operation at set value
Reset (HYS.)	Hysteresis	5% of operating value (fixed)
Reset (HYS.)	Resetting method	Automatic reset
Operating time (T)	Overvoltage/undervoltage	0.1 to 30 s
Power ON lock (LOCK)		1 s or 5 s (Changed with the DIP switch)
Overload capacity		Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC)
Repeat accuracy	Operating value	±0.5% full scale (at 25°C and an ambient humidity of 65% at the rated power supply voltage, DC or 50/60 Hz sine wave input)
Repeat accuracy	Operating time	±50 ms (at 25°C and 65% humidity, rated power supply voltage)
Indicators		Power (PWR): Green LED, relay output (RY): Yellow LED, alarm outputs (ALM 1/2): Red LED
Applicable standards	Conforming standards	EN 60947-5-1 Installation environment (pollution level 2, installation category III)
	EMC	EN 60947-5-1
	Safety standards	UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC
Size in mm (H × W × D)		90 × 22.5 × 100