


| Parameter | Value |
|---|---|
| EMC (3-phase asymmetry, phase-sequence, phase-loss relay) | EN 60947-5-1 |
| Weight (3-phase asymmetry, phase-sequence, phase-loss relay) | Approx. 130 g |
| Altitude (3-phase asymmetry, phase-sequence, phase-loss relay) | 2,000 m max. |
| K8AK-PA2 (3-phase asymmetry, phase-sequence, phase-loss relay) | 3-phase, 3-wire mode: 380, 400, 415, 480 VAC, 3-phase, 4-wire mode: 220, 230, 240, 277 VAC |
| Indicators (3-phase asymmetry, phase-sequence, phase-loss relay) | Power (PWR): Green LED, relay output (RY): Yellow LED, alarm outputs (ALM 1/2): Red LED |
| Rated input (3-phase asymmetry, phase-sequence, phase-loss relay) | Order code |
| Reset (HYS.) (3-phase asymmetry, phase-sequence, phase-loss relay) | Hysteresis |
| Case material (3-phase asymmetry, phase-sequence, phase-loss relay) | PC and ABS |
| Operating time (3-phase asymmetry, phase-sequence, phase-loss relay) | ±50 ms (at 25°C and 65% humidity, rated power supply voltage) |
| Electrical life (3-phase asymmetry, phase-sequence, phase-loss relay) | 50,000 operations at 5 A, 250 VAC or 30 VDC |
| Input frequency (3-phase asymmetry, phase-sequence, phase-loss relay) | 50/60 Hz (AC power supply) |
| Mechanical life (3-phase asymmetry, phase-sequence, phase-loss relay) | 10,000,000 operations |
| Operating value (3-phase asymmetry, phase-sequence, phase-loss relay) | 100% operation at set valueAsymmetry operating value = rated input voltage x asymmetry set value [%]The asymmetry operation will function when the difference between the highest and lowest voltage phases equals or exceeds the asymmetry operating value |
| Repeat accuracy (3-phase asymmetry, phase-sequence, phase-loss relay) | Operating value |
| Resetting method (3-phase asymmetry, phase-sequence, phase-loss relay) | Automatic reset |
| Safety standards (3-phase asymmetry, phase-sequence, phase-loss relay) | UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC |
| Overload capacity (3-phase asymmetry, phase-sequence, phase-loss relay) | Continuous input at 115% of maximum input, 10 s at 125% (up to 600 VAC) |
| Operating time (T) (3-phase asymmetry, phase-sequence, phase-loss relay) | Asymmetry |
| 3-phase 3-wire mode (3-phase asymmetry, phase-sequence, phase-loss relay) | 380, 400, 415, 480 VAC |
| 3-phase 4-wire mode (3-phase asymmetry, phase-sequence, phase-loss relay) | 220, 230, 240, 277 VAC |
| Rated input voltage (3-phase asymmetry, phase-sequence, phase-loss relay) | K8AK-PA1 |
| Storage temperature (3-phase asymmetry, phase-sequence, phase-loss relay) | -25 to 65°C (with no condensation or icing) |
| Applicable standards (3-phase asymmetry, phase-sequence, phase-loss relay) | Conforming standards |
| Degree of protection (3-phase asymmetry, phase-sequence, phase-loss relay) | Terminal section: IP20 |
| Power ON lock (LOCK) (3-phase asymmetry, phase-sequence, phase-loss relay) | 1 s or 5 s (Changed with the DIP switch) |
| Maximum contact current (3-phase asymmetry, phase-sequence, phase-loss relay) | 5 A |
| Maximum contact voltage (3-phase asymmetry, phase-sequence, phase-loss relay) | 250 VAC or 30 VDC |
| Size in mm (H × W × D) (3-phase asymmetry, phase-sequence, phase-loss relay) | 90 × 22.5 × 100 |
| Asymmetry operation (ASY.) (3-phase asymmetry, phase-sequence, phase-loss relay) | Operating value setting range |
| Maximum switching capacity (3-phase asymmetry, phase-sequence, phase-loss relay) | 1,250 VA, 150 W |
| Phase-sequence, phase-loss (3-phase asymmetry, phase-sequence, phase-loss relay) | 0.1 s max. |
| Ambient operating temperature (3-phase asymmetry, phase-sequence, phase-loss relay) | -20 to 60°C (with no condensation or icing) |
| Output relays(1 × SPDT, normally closed operation) (3-phase asymmetry, phase-sequence, phase-loss relay) | Resistive load |
Technical specifications and performance data
Installation and operation guide