K2CM
2
Current Reverse-phase Detection Models
Note:
The manual resetting method must be used with reverse-phase detection.
■
Related Product
Transformer
Note:
Use this Transformer when a voltage reverse-phase detection model is used on a 400-V line.
Specifications
■
Ratings
Other features, such as 100% overcurrent capacity and flush mounting are also available. See
Model Number Legend
on page 1 for details.
Note:
The start-up lock timer restarts when the operating value at starting becomes less than 30% of the set current value.
Time specification
Inverse type
Instantaneous type
Resetting
method
Current setting range
2 to 8 A
8 to 26 A
20 to 65 A 50 to 160 A
2 to 8 A
8 to 26 A
20 to 65 A
50 to 160 A
Operating voltage
Manual
100/110/120 VAC
K2CM-1LS
K2CM-1L
K2CM-1M
K2CM-1H
K2CM-Q1LS
K2CM-Q1L
K2CM-Q1M
K2CM-Q1H
200/220/240 VAC
K2CM-2LS
K2CM-2L
K2CM-2M
K2CM-2H
K2CM-Q2LS
K2CM-Q2L
K2CM-Q2M
K2CM-Q2H
400/440 VAC
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K2CM-4L
K2CM-4M
K2CM-4H
---
K2CM-Q4L
K2CM-Q4M
K2CM-Q4H
Automatic
(See
note.)
100/110/120 VAC
K2CM-1LSA K2CM-1LA K2CM-1MA K2CM-1HA K2CM-Q1LSA K2CM-Q1LA K2CM-Q1MA K2CM-Q1HA
200/220/240 VAC
K2CM-2LSA K2CM-2LA K2CM-2MA K2CM-2HA K2CM-Q2LSA K2CM-Q2LA K2CM-Q2MA K2CM-Q2HA
400/440 VAC
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K2CM-4LA K2CM-4MA K2CM-4HA ---
K2CM-Q4LA K2CM-Q4MA K2CM-Q4HA
Model
Voltage specification
Secondary power
consumption
SE-PT400
Primary side
380 to 480 V (wide power supply range) 7VA
Secondary side
190 to 240 V (wide power supply range)
Supply voltage of motor circuit
200/220, 400/440 VAC, 50/60 Hz
Supply voltage of control circuit
100/110/120, 200/220/240, 400/440 VAC, 50/60 Hz
Insulation breakdown of output contact
500 VAC
Operating voltage/current of output contact
(pf = 0.4 when breaking contact)
NO contact: 120 VAC/2 A, 240 VAC/1 A, 440 VAC/0.5 A, 110 VDC/0.2 A, 220 VDC/0.1 A
NC contact: 120 VAC/5 A, 240 VAC/2 A, 440 VAC/1 A, 110 VDC/0.2 A, 220 VDC/0.1 A
Contact form of output contact
Current reverse-phase detection models: SPST-NO + SPST-NC
Voltage reverse-phase detection models: SPDT
Operating current range of input circuit
2 to 160 A (Number of passes: 1)
Operating voltage range of control circuit
85% to 110% of rated voltage, but operates normally at 50% of open-phase supply voltage
Operating frequency range of control circuit
95% to 105% of rated frequency
Power consumption
Approx. 3 VA (in standby state); 5 VA (in operating state)
Overcurrent function operating value
115
±
10% of the setting value
Overcurrent function operating time setting
range
Inverse Type
Inverse time both at startup and during operation:
Timer scale
×
1 (s) at 600% overload
Timer scale
×
3 (s) at 200% overload
Note:
The above values are for a time factor setting of 1.
Instantaneous Type
Fixed time at starting (start-up lock)
•
Time setting value (varies between 2 and 40 s) at 140% overload and starting
Instantaneous during operation: 0.5 s max. (when current is increased from 100 to 140% of the
set current value)
Case color
Munsell 5Y7/1
Overcurrent function operating time
characteristics
Inverse type:
±
10% of maximum setting value (at 600% overload)
Instantaneous type:
±
20% of maximum setting value (at 140% overcurrent and at starting)
Overcurrent function resetting value
100% min. of the setting value
Overcurrent function start-up operating
value
Inverse type: Not applicable
Instantaneous type: 30% max. of the setting value (See note.)
Open-phase operating value
85% max. of the set current value (at open-phase)
Open-phase operating time
2 s max. (at overcurrent operating value)
Reverse-phase operating value
50% max. of the current value (80% max. of the operating voltage)
Reverse-phase operating time
1 s max. (at overcurrent operating value)
Imbalance operating value
85% of the set current value
Current imbalance factor
High: 35
±
10%; Low: 60% min. (at overcurrent operating value)
w
here
Im
b
alance factor =
Re
v
erse phase portion
N
ormal phase portion
×
100 (
%
)
