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

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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)

where

Imbalance factor =

Reverse phase portion

Normal phase portion

× 100 (%)