K8DS-PH1 378191 OMRON Monitoring Relays, Three Phase Sequence / Phase Loss View larger
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K8DS-PH1 378191 OMRON Monitoring Relays, Three Phase Sequence / Phase Loss





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Monitoring Relays, Three Phase Sequence / Phase Loss

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K8DS-PH 3-phase control
3-phase voltage, phase-sequence/phase loss relay
The K8DS-PH1 is a monitoring relay designed at 17.5 mm slim by simplified functions for 3-phase 3 wire supplies. It simultaneously monitors phase sequence and phase loss during start up as well as phase loss during operation. The output relay releases when alarm conditions are detected, and the warning status can easily be monitored using the LED indicator.
• Monitors phase sequence and phase-loss simultaneously
• Measuring range: 200 to 480 VAC
• Power supply voltage is the same as measuring voltage
• Operation reaction time: 0.1 s maximum
Ordering information
Rated input voltage Order code
200 to 480 VAC K8DS-PH1
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.
Input frequency 50/60 Hz (AC power supply)
Output relays
(1 × 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 UL 94 V-0
Weight Approx. 60 g
Rated input voltage Three-phase, three-wire mode, 200 to 480 VAC
Reversed phase and phase loss operating time 0.1 s max.
Resetting method Automatic reset
Overload capacity Continuous input: 500 VAC
Indicators Power (PWR): Green LED, relay output (RY): Yellow 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 (H × W × D) 80 × 17.5 × 74 mm

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