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Discontinued On Mar. 2015

K8AB-PH1-L

Phase-sequence Phase-loss Relay

K8AB-PH1-L

Three-phase Phase-sequence Phase-loss Relay Using Voltage Detection Method Fixed phase Asymmetry monitoring

* Information in this page is a reference that you created on the basis of information in the product catalog before the end of production, may be different from the current situation, such as goods for / supported standards options / price / features of the product. Before using, please check the compatibility and safety system.

Ratings

Rated input voltage Three-phase, three-wire mode, 200 to 500 VAC
Input load 15 VA max.
Reversed phase and phase loss
operating time
0.1 s max.
Reset method Automatic reset
Indicators Power (PWR): Green, Relay output (RY): Yellow
Output relays One SPDT relay (NC operation)
Output relay ratings Rated load
Resistive load
6 A at 250 VAC (cosφ = 1)
6 A at 30 VDC (L/R = 0 ms)
Inductive load
1 A at 250 VAC (cosφ = 0.4)
1 A at 30 VDC (L/R = 7 ms)
Maximum contact voltage: 250 VAC
Maximum contact current: 6 A AC
Maximum switching capacity: 1,500 VA
Minimum load: 10 mA at 5 VDC
Mechanical life: 1,000,000 operations
Electrical life: Make: 25,000 times, Break: 15,000 times
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% (with no condensation)
Storage humidity 25% to 85% (with no condensation)
Altitude 2,000 m max.
Terminal screw tightening torque 0.54 Nm
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 Munsell 5Y8/1
Case material ABS resin (self-extinguishing resin) UL94-V0
Weight Approx. 110 g
Mounting Mounted to DIN Track or via M4 screws (tightening torque: 1.2 Nm)
Dimensions 22.5 (W) × 90 (H) × 100 (D) mm

Specifications

Input voltage range 200 to 500 VAC
Input frequency range 45 to 65 Hz
Overload capacity Continuous input: 115% of maximum input, 10 s max.: 125% of maximum input
Fixed Phase Asymmetry
Monitoring
Output relay releases when one phase-phase voltage drops below 80% of the other
phase-phase voltage.
Temperature influence Operating time
Fluctuation based on measured value at standard temperature:
-20°C to standard temperature: ±10% max.
Standard temperature to 60°C: ±10% max.
(Humidity: 25% to 80%)
Humidity influence Operating time
Based on ambient room humidity
25% to 80%: ±10% max.
Influence of power supply
voltage
Operating time: ±10% max.
Note: The error in the operating value and operating time under standard conditions.
Influence of power supply
frequency
Operating time: ±10% max. (at 45 to 65 Hz)
Note: The error in the operating value and operating time under standard conditions.
Influence of input
frequency
At 45 to 65 Hz
Operating time: ±10% max.
Note: The error in the operating value and operating time under standard conditions.
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, acceleration 50 m/s2
10 sweeps of 5 min each in X, Y, and Z directions
Shock resistance 100 m/s2, 3 times each in 6 directions along three axes (up/down, left/right, forward/
backward)
Degree of protection Terminal section: Finger protection