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Industrial Automation
K8DT-PZ
Three-phase Voltage, Asymmetry, and Phase-sequence Phase-loss Relay
Our Value Design Products Increase the Value of Your Control Panels. Protect motors and other equipment from unstable voltages in the power supply system. Detect overvoltages, undervoltages, voltage asymmetry, phase sequence, and phase loss for three-phase power supplies.
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last update: March 1, 2019
Ratings
| Rated input voltage | K8DT-PZ1[]N: Three-phase, three-wire Mode: 200, 220, 230, or 240 VAC
K8DT-PZ2[]N: Three-phase, three-wire Mode: 380, 400, 415, or 480 VAC |
|
|---|---|---|
| Input load | K8DT-PZ1: Approx. 1.7 VA
K8DT-PZ2: Approx. 2.7 VA |
|
| Rated insulation voltage | 528 VAC | |
| Operating value setting
range |
Overvoltage/Undervoltage
2% to 30% of rated input voltage Asymmetry 5% to 22% of rated input voltage Note: The rated input voltage can be switched by using the DIP switches. |
|
| Operating value | Overvoltage/Undervoltage
Operates at 100% of set value. Asymmetry 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 | 2% of operating value (fixed) | |
| Reset method | Automatic reset | |
| Operating
time setting range |
Overvoltage/
Undervoltage |
0.1 to 30 s |
| 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/5 s (switched by using the DIP switch) | |
| Indicators | Power (PWR): Green, Output (OUT): Yellow,
Alarm outputs (ALM): Red |
|
| Output form | Relay Output: SPDT contact
Transistor Output: 1 |
|
| Output relay ratings | Rated load
5 A at 250 VAC (Resistive load) 5 A at 30 VDC (Resistive load) 1 A at 250 VAC (Inductive load) 0.2 A at 48 VDC (Inductive load) 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 |
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) | |
| Ambient operating
humidity |
25% to 85% RH (with no condensation) | |
| Storage humidity | 25% to 85% RH (with no condensation) | |
| Altitude | 2,000 m max. | |
| Applicable wires | Stranded wires, solid wires, or ferrules | |
| Applicable wire size | 0.25 to 1.5 mm2 (AWG24 to AWG16) | |
| Wire insertion force | 8 N max. for AWG20 wire | |
| Screwdriver insertion
force |
15 N max. | |
| Wire stripping length | 8 mm | |
| Ferrule length | 8 mm | |
| Recommended flatblade
screwdriver |
XW4Z-00B (Omron)
SZF 0.4 × 2.5 (Phoenix Contact) 210-719 (Wago) SDI 0.4 × 2.5 × 75 (Weidmuller) |
|
| Current capacity | 10 A (per pole) | |
| Number of insertions | 50 times | |
| Case color | N1.5 | |
| Case material | PC, UL 94 V-0 | |
| Weight | Approx. 100 g | |
| Mounting | Mounts to DIN Track, or screw mounting | |
| Dimensions | 17.5 × 90 × 90 mm (W×D×H) | |
Specifications
| Input frequency | 50/60 Hz | |
|---|---|---|
| Overload capacity | Continuous 528 V | |
| Repeat
accuracy |
Operating
value |
±0.5% full scale (at 25°C and 65% humidity, rated power supply voltage) |
| 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, Overvoltage category III) |
| EMC | EN 60947-5-1 | |
| Safety
standards |
UL 60947-5-1 (Listing), Korean Radio Waves Act (Act 10564),
CCC (GB/T 14048.5), LR (Category ENV1.2) |
|
| 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 |
|
| Impulse withstand
voltage |
6 kV (between live terminals and exposed, noncharged metal parts) | |
| 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 | |
last update: March 1, 2019
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