


| Parameter | Value |
|---|---|
| EMC (Specifications & ordering info) | EN 60947-5-1 |
| Weight (Specifications & ordering info) | Approx. 65 g |
| Altitude (Specifications & ordering info) | 2,000 m max. |
| K8DS-PU2 (Specifications & ordering info) | 3-phase, 3-wire mode: 380, 400, 415, 480 VAC |
| Indicators (Specifications & ordering info) | Power (PWR): Green LED, relay output (RY): Yellow LED, UNDER: Red |
| Phase-loss (Specifications & ordering info) | 0.1 s ±0.05 s |
| Rated input (Specifications & ordering info) | Order code |
| Reset (HYS.) (Specifications & ordering info) | Hysteresis |
| Case material (Specifications & ordering info) | PC UL94 V-0 |
| Operating time (Specifications & ordering info) | ±50 ms (at 25°C and 65% humidity, rated power supply voltage) |
| Phase-sequence (Specifications & ordering info) | 0.1 s ±0.5 s |
| Electrical life (Specifications & ordering info) | 50,000 operations at 5 A, 250 VAC |
| Input frequency (Specifications & ordering info) | 50/60 Hz (AC power supply) |
| Mechanical life (Specifications & ordering info) | 10,000,000 operations |
| Operating value (Specifications & ordering info) | 100% operation at set value |
| Repeat accuracy (Specifications & ordering info) | Operating value |
| Resetting method (Specifications & ordering info) | Automatic reset |
| Safety standards (Specifications & ordering info) | UL 508 (Recognition), Korean Radio Waves Act (Act 10564), CSA and CCC |
| Overload capacity (Specifications & ordering info) | Continuous input: 500 V |
| Operating time (T) (Specifications & ordering info) | Undervoltage |
| 3-phase 3-wire mode (Specifications & ordering info) | 380, 400, 415, 480 VAC |
| Rated input voltage (Specifications & ordering info) | K8DS-PU1 |
| Storage temperature (Specifications & ordering info) | −25 to 65°C (with no condensation or icing) |
| Applicable standards (Specifications & ordering info) | Conforming standards |
| Degree of protection (Specifications & ordering info) | Terminal section: IP20 |
| Power ON lock (LOCK) (Specifications & ordering info) | 0.1 s ±0.5 s |
| Maximum contact current (Specifications & ordering info) | 5 A |
| Maximum contact voltage (Specifications & ordering info) | 250 VAC or 30 VDC |
| Size in mm (H × W × D) (Specifications & ordering info) | 80 × 17.5 × 74 |
| Maximum switching capacity (Specifications & ordering info) | 1,250 VA, 150 W |
| Ambient operating temperature (Specifications & ordering info) | −20 to 60°C (with no condensation or icing) |
| Voltage fluctuation range (UNDER) (Specifications & ordering info) | Undervoltage 30 to 25% of rated input voltage |
| Operation (overvoltage or undervoltage) (Specifications & ordering info) | Operating value setting range |
| Output relays(1× SPDT, normally closed operation) (Specifications & ordering info) | Resistive load |
Technical specifications and performance data
Installation and operation guide