Three-phase Asymmetry and Phase-sequence Phase-loss Relay
last update: April 1, 2019
Rated input
voltage |
K8DS-PA1 | Three-phase, three-wire Mode: 200, 220, 230, or 240 VAC |
---|---|---|
K8DS-PA2 | Three-phase, three-wire Mode: 380, 400, 415, or 480 VAC | |
Input load | K8DS-PA1: Approx. 1.7 VA
K8DS-PA2: Approx. 2.8 VA |
|
Operating value setting range (ASY.) | Asymmetry set value (%) = 2 to 22% | |
Operating value | Asymmetry operating value = Rated input voltage × Asymmetry set value (%)
The asymmetry operation will function when the potential difference between the highest and lowest voltage phases equals or exceeds the asymmetry operating value. |
|
Reset value | 5% of operating value (fixed) | |
Reset method | Automatic reset | |
Operating time
setting range (T) |
Asymmetry | 0.1 to 30 s |
Phase sequence | 0.1 s±0.05 s | |
Phase loss | 0.1 s max. | |
Power ON lock time (LOCK) | 1 s±0.5 s | |
Indicators | Power (PWR): Green, Relay output (RY): Yellow, Alarm outputs (ALM): Red | |
Output relays | One SPDT relay output | |
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: 50,000 operations 3 A at 250 VAC: 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. 65 g | |
Mounting | Mounts to DIN Track. | |
Dimensions | 17.5 × 80 × 74 mm (W×D×H) |
Input frequency | 50/60 Hz | |
---|---|---|
Overload capacity | Continuous 500 V | |
Repeat
accuracy |
Operating value | ±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage, 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 min.
Between external terminals and case Between input terminals and output terminals |
|
Dielectric strength | 2,000 VAC for one minute
Between external terminals and case Between input terminals and 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 K8DS may rise and shorten the life of the internal components.
last update: April 1, 2019