Phase-sequence Phase-loss Relay
K8AB-PH
J-31
Mo
nit
o
ring
p
rod
ucts
■
Specifications
Ambient operating temperature
−
20 to 60°C (with no condensation or icing)
Storage temperature
−
40 to 70°C (with no condensation or icing)
Ambient operating humidity
25% to 85%
Storage humidity
25% to 85%
Altitude
2,000 m max.
Voltage fluctuation range
85% to 110% of rated input voltage
Input frequency
50/60 Hz ±5 Hz (AC power supply)
Output relays
Resistive load
6 A at 250 VAC (cos
φ
= 1)
6 A at 30 VDC (L/R = 0 ms)
Inductive load
1 A at 250 VAC (cos
φ
= 0.4)
1 A at 30 VDC (L/R = 7 ms)
Minimum load
10 mA at 5 VDC
Maximum contact voltage
250 VAC
Maximum contact current
6 A AC
Maximum switching
capacity
1,500 VA
Mechanical life
10,000,000 operations
Electrical life
Make: 50,000 times, Break: 30,000 times
Terminal screw tightening torque
1.2 N·m
Crimp terminals
Two solid wires of 2.5 mm
2
, two crimp terminals of 1.5 mm
2
with insulation sleeves, can be
tightened together
Insulation resistance
20 M
Ω
(at 500 V) between charged terminals and exposed uncharged parts
20 M
Ω
(at 500 V) between any charged terminals (i.e., between input, output, and power
supply terminals)
Degree of protection
Terminal section: IP20, Rear case: IP40
Case color
Munsell 5Y8/1 (ivory)
Case material
ABS resin (self-extinguishing resin) UL94-V0
Weight
200 g
Mounting
Mounted to DIN-rail or via M4 screws
Dimensions
22.5 (W) x 90 (H) x 100 (D) mm
Installation environment
Overvoltage Category III, Pollution Degree 2
Application standards
EN60255-5/-6
Safety standards
EN60664-1
EMC
EMI: EN61326 Industrial applications
Electromagnetic interference wave
CISPR11 Group 1, Class A: CISPR16-1/-2
Terminal interference wave voltage
CISPR11 Group 1, Class A: CISPR16-1/-2
EMS: EN61326 Industrial applications
Electrostatic discharge EN61000-4-2: 8 kV (in air)
Radiating radio-frequency electromagnetic field EN61000-4-3:
10 V/m 1 kHz sine wave amplitude modulation (80 MHz to 1 GHz)
Burst EN61000-4-4:
1 kV (I/O signal line), 2 kV (power line)
Surge EN61000-4-5:
1 kV with line (power line),
2 kV with ground (power line)
Conducted RF EN61000-4-6:
3 V (0.15 to 80 MHz)
Power frequency magnetic field immunity
EN61000-4-8: 30 A/m
Voltage dip/short interruptions
EN61000-4-11: 0.5 cycle, 0.180° each, polarity 100% (rated voltage)
