Three-phase Voltage Relay
last update: April 1, 2019
Rated input
voltage |
K8AK-PW1 | Three-phase, three-wire Mode: 200, 220, 230 and 240 VAC
Three-phase, four-wire Mode: 115, 127, 133 and 138 VAC |
---|---|---|
K8AK-PW2 | Three-phase, three-wire Mode: 380, 400, 415 and 480 VAC
Three-phase, four-wire Mode: 220, 230, 240 and 277 VAC |
|
Input load | K8AK-PW1: Approx. 4.4 VA
K8AK-PW2: Approx. 4.4 VA |
|
Operating value setting range
(OVER, UNDER) |
Overvoltage
-30% to 25% of rated input voltage Undervoltage -30% to 25% of rated input voltage Note: The rated input voltage can be switched using the DIP switch. |
|
Operating value | 100% operation at set value | |
Reset value | 5% of operating value (fixed) | |
Reset method | Automatic reset | |
Operating time setting range (T) | Overvoltage and undervoltage: 0.1 to 30 s | |
Power ON lock time (LOCK) | 1 s/5 s (Changed with the DIP switch.) | |
Indicators | Power (PWR): Green, Relay output (RY): Yellow, OVER/UNDER: Red | |
Output relays | Two SPDT relays (NC operation) | |
Output relay ratings | Rated load
Resistive load 5 A at 250 VAC 5 A at 30 VDC Maximum switching capacity: 1,250 VA, 150 W 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/30 VDC:100,000 operations |
|
Ambient operating temperature | -20 to 60°C (with no condensation or icing) | |
Storage temperature | -25 to 65°C (with no condensation or icing) | |
Ambient operating humidity | 25% to 85% (with no condensation) | |
Storage humidity | 25% to 85% (with no condensation) | |
Altitude | 2,000 m max. | |
Terminal screw tightening torque | 0.49 to 0.59 N·m | |
Terminal wiring method | Recommended wire
Solid wire: 2.5 mm2 Twisted wires: AWG16, AWG18 Note: 1. Ferrules with insulating sleeves must be used with twisted wires. 2. Two wires can be twisted together. Recommended ferrules Al 1,5-8BK (for AWG16) manufactured by Phoenix Contact Al 1-8RD (for AWG18) manufactured by Phoenix Contact Al 0,75-8GY (for AWG18) manufactured by Phoenix Contact |
|
Case color | N1.5 | |
Case material | PC and ABS, UL 94 V-0 | |
Weight | Approx. 150 g | |
Mounting | Mounts to DIN Track. | |
Dimensions | 22.5 × 90 × 100 mm (W×H×D) |
Input frequency range | 50/60 Hz | |
---|---|---|
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 and 50/60 Hz sine wave input) |
Operating time | ±50 ms (at 25°C and 65% humidity, rated power supply voltage) | |
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: C22.2 No.14, CCC: GB/T 14048.5 |
|
Insulation resistance | 20 MΩ
Between all external terminals and the case Between all input terminals and all output terminals |
|
Dielectric strength | 2,000 VAC for 1 min
Between all external terminals and the case Between all input terminals and all output terminals |
|
Noise immunity | 1,500 V power supply terminal common/normal mode
Square-wave noise of ±1 μs/100 ns pulse width with 1-ns rise time |
|
Vibration resistance | Frequency: 10 to 55 Hz, 0.35-mm single amplitude
10 sweeps of 5 min each in X,Y, and Z directions |
|
Shock resistance | 100 m/s2, 3 times each in 6 directions along 3 axes | |
Degree of protection | Terminals: IP20 |
The following diagram shows the relationship between the mounting distances and the ambient temperature.
If the relay is used with an ambient temperature that exceeds these values, the temperature of the K8AK may rise and shorten the life of the internal components.
last update: April 1, 2019