3-phase, 3-wire 200 to 480 VAC

Relay: SPDT contact output

K8DT-PH1CN

Transistor: Open collector

K8DT-PH1TN

Y92A-D1A

Rated input voltage

3-phase, 200 to 480 VAC (3-wire)

Input load

Approx. 2.6 VA

Operating time

Phase sequence

0.1 s±0.05 s

Phase loss

0.1 s max. (when the voltage changes rapidly from 100% to 0% of rated voltage)

Reset method

Automatic reset

Indicators

Power (PWR): Green, Output (OUT): Yellow

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 range

45 to 65 Hz

Overload capacity

Continuous 528 V

Phase loss detection level

80%±10% of rated input
Calculation Formula
= 1 − ((Highest phase-to-phase voltage − Lowest phase-to-phase voltage)/Average three-phase phase-to-phase 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 (GB14048.5), LR (Category ENV1.2)2

Degree of protection

Terminals: IP20