K8AB-PH 查看數據表（PDF） - OMRON Corporation

零件编号

产品描述 (功能)

比赛名单

K8AB-PH

Phase-sequence Phase-loss Relay

OMRON Corporation 

■ Specifications

Input voltage range

Input frequency range

Overload capacity

Temperature influence

Humidity influence

Influence of power supply voltage

Influence of power supply frequency

Influence of input frequency

Applicable

standards

Conforming standards

EMC

Safety standards

Insulation resistance

Dielectric strength

Noise immunity

Vibration resistance

Shock resistance

Degree of protection

K8AB-PH

200 to 500 VAC

45 to 65 Hz

Continuous input: 115% of maximum input, 10 s max.: 125% of maximum input

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%)

Operating time

Based on ambient room humidity

25% to 80%: ±10% max.

Operating time: ±10% max.

Note: The error in the operating value and operating time under standard conditions.

Operating time: ±10% max. (at 45 to 65 Hz)

Note: The error in the operating value and operating time under standard conditions.

At 45 to 65 Hz

Operating time ±10% max.

Note: The error in the operating value and operating time under standard conditions.

EN60255-5 and EN60255-6

Installation environment (Pollution Degree 2, Overvoltage Category III)

EN61326

UL508

20 MΩ min.

Between external terminals and case

Between input terminals and output terminals

2,000 VAC for one minute

Between external terminals and case

Between input terminals and output terminals

1,500 V power supply terminal common/normal mode

Square-wave noise of ±1 μs/100 ns pulse width with 1-ns rise time

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

100 m/s2, 3 times each in 6 directions along three axes (up/down, left/right, forward/backward)

Terminal section: Finger protection

Connections

■ Wiring Diagram

Phase Sequence and Phase Loss Operation Diagram

Phase Loss Operation

L1

Input L2

L3

Phase Sequence Operation

L1 L3 L1

L3 L2 L2

L2 L1 L3

Relay

Note: 1. Motor load phase loss cannot be detected. To detect motor load

phase loss, use the K8AB-PM or K8AB-PA.

2. The K8AB-PH output relay is normally operative.

3. L1 and L3 function both as the power supply terminals and as input

terminals. If the voltage drops below the minimum input voltage (60%),

then the Relay will not operate due to an undervoltage.

4. Phase loss is detected based on the phase sequence, so phase loss

cannot be detected for loads that generate inductive power, e.g., due

to motor during operation.

5. Phase loss is detected based on voltage, so phase loss cannot be

detected on the load side.

L1 L2 L3

Voltage input

L1

L2

L3

14

Signal output

12

11

Relay signal

output

Load

3

Share Link: