2
Three-phase Phase-sequence Phase-loss Relay
K8AB-PM
Cat. No. N146-E1-02
Ordering Information
■
List of Models
Note: 1.
Three-phase 3-wire or 4-wire and the input range are switched using a DIP switch.
2.
The power supply is shared with the rated input voltage.
Ratings and Specifications
■
Ratings
Three-phase Phase-sequence Phase-loss Relay
Rated input (See note 2.)
Model
3-phase 3-wire mode
200, 220, 230, 240 VAC
K8AB-PM1
3-phase 4-wire mode
115, 127, 133, 138 VAC
3-phase 3-wire mode
380, 400, 415, 480 VAC
K8AB-PM2
3-phase 4-wire mode
220, 230, 240, 277 VAC
Rated input
voltage
K8AB-PM1
Three-phase, three-wire Mode: 200, 220, 230 and 240 VAC
Three-phase, four-wire Mode: 115, 127, 133 and 138 VAC
K8AB-PM2
Three-phase, three-wire Mode: 380, 400, 415 and 480 VAC
Three-phase, four-wire Mode: 220, 230, 240 and 277 VAC
Input load
K8AB-PM1: 25 VA max.
K8AB-PM2: 45 VA max.
Operating value setting range (OVER, UNDER)
Overvoltage
−
30% to 25% of rated input voltage
Undervoltage
−
30% to 25% of rated input voltage
Note:
The rated input voltage can be switched using the DIP switch.
Operating value
100% operation at set value
Reset value
5% of operating value (fixed)
Reset method
Automatic reset
Operating time
setting range (T)
Overvoltage/undervoltage
0.1 to 30 s
Reversed phase/phase loss
0.1 s max.
Startup lock time (LOCK)
1 s or 5 s (Switched using DIP switch.)
Indicators
Power (PWR): Green, Relay output (RY): Yellow, OVER/UNDER: Red
Output relays
Two SPDT relays (NC operation)
Output relay ratings
Rated load
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)
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:
10,000,000 operations
Electrical life:
Make: 50,000 times, Break: 30,000 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
0.49 N·m
Terminal wiring method
Recommended wire
Solid wire:
2.5 mm
2
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. 130 g
Mounting
Mounted to DIN Track or via M4 screws (tightening torque: 1.2 N·m)
Dimensions
22.5 (W)
×
90 (H)
×
100 (D) mm
