Ordering Information; Ratings And Specifications - Omron K8AB-PM Product Manual

Ordering Information

■ List of Models
Three-phase Phase-sequence Phase-loss Relay
Note: 1. Three-phase 3-wire or 4-wire and the input range are switched using a switch.
2. The power supply is shared with the rated input voltage.

Ratings and Specifications

■ Ratings
Rated input K8AB-PM1
voltage
K8AB-PM2
Operation Operating value setting
(overvoltage or range
undervoltage)
Operating value
Reset (HYS.) Hysteresis
Resetting method
Operating time Overvoltage/undervoltage
(T)
Phase sequence, phase loss 0.1 max. (Value when input rapidly changes from 0% to 100%.)
Power ON lock (LOCK)
Setting accuracy
Time error
Input frequency
Input impedance
Indicators
Output relays
2
Three-phase Phase-sequence Phase-loss Relay
Rated input (See note 2.)
3-phase 3-wire mode
3-phase 4-wire mode
3-phase 3-wire mode
3-phase 4-wire mode
Three-phase, three-wire mode: 200, 220, 230, 240 VAC
Three-phase, four-wire mode: 115, 127, 133, 138 VAC
Three-phase, three-wire mode: 380, 400, 415, 480 VAC
Three-phase, four-wire mode: 220, 230, 240, 277 VAC
Overvoltage = −30% to 25% of maximum rated input voltage
Undervoltage = −30% to 25% of maximum rated input voltage
Note: The rated input voltage is switched with a switch.
100% operation at set value
5% of operating value (fixed)
Automatic reset
0.1 to 30 s (Value when input rapidly changes from 0% to 120%.)
1 s or 5 s error ±0.5 s (Value when input rapidly changes from 0% to 100%. The operating time
is the shortest at this point.)
±10% of full scale
±10% of set value (Minimum error: 50 ms)
45 to 65 Hz
100 kΩ min.
Power (PWR): Green LED, Relay output (RY): Yellow LED, Alarm outputs (ALM1/2): Red LED
Two SPDT relays (6 A at 250 VAC, resistive load), Normally closed operation (normally ON)
(separate outputs possible for overvoltages and undervoltages)
K8AB-PM
200, 220, 230, 240 VAC
115, 127, 133, 138 VAC
380, 400, 415, 480 VAC
220, 230, 240, 277 VAC
Model
K8AB-PM1
K8AB-PM2
Cat. No. N146-E1-01