KM-N2

Универсальное устройство контроля мощности для монтажа в шкафу управления

Удобное решение, простое в монтаже и применении
Одно устройство может контролировать до четырех электрических цепей
Поддерживаются трансформаторы тока общего назначения и электросети различного типа
ЖК-дисплей с крупными, хорошо видимыми цифрами белого цвета
Высокая точность измерений (класс 0.5S по IEC) (только устройство контроля мощности)

Ordering information

Power monitor

Applicable circuits and rated input voltage	Power supply voltage	Dimensions (W×H×D)	Communications	Order code
Single-phase, 2-wire: 100 to 277 VAC Single-phase, 3-wire: 100 to 240 VAC (L-N) or 200 to 480 VAC (L-L) Three-phase, 3-wire: 100 to 277 VAC (L-N) or 173 to 480 VAC (L-L) Three-phase, 4-wire: 100 to 277 VAC (L-N) or 173 to 480 VAC (L-L)	Same as measured circuits: 100 to 277 VAC (L-N) 173 to 480 VAC (L-L)	90 × 65 × 90 mm	RS-485 communications, pulse output	KM-N2-FLK

Applicable circuits and rated input voltage

Power supply voltage

Dimensions (W×H×D)

Communications

Order code

Single-phase, 2-wire:
100 to 277 VAC
Single-phase, 3-wire:
100 to 240 VAC (L-N) or 200 to 480 VAC (L-L)
Three-phase, 3-wire:
100 to 277 VAC (L-N) or 173 to 480 VAC (L-L)
Three-phase, 4-wire:
100 to 277 VAC (L-N) or 173 to 480 VAC (L-L)

Same as measured circuits:

100 to 277 VAC (L-N)

173 to 480 VAC (L-L)

90 × 65 × 90 mm

RS-485 communications,
pulse output

KM-N2-FLK

Note: To use a commercially available current transformer, use a CT with a secondary current rating of 1 A or 5 A, and a rated load of at least 1.0 VA.

Connectable OMRON split-type Current Transformers (CTs)

Rated primary current	Rated secondary current	Order code
100 A	1 A	KM20-CTN100
250 A		KM20-CTN250
500 A		KM20-CTN500

Note: The CT cables connected to the CT have the following recommended characteristics:
- cross section 0.75 mm² = AWG18
- 2C (number of internal wires is two)
- 1 m long maximum.
The CT cables are not provided by Omron

Specifications

Ratings (Power monitor)

Item		KM-N2-FLK
Applicable phase wiring methods		Single-phase two-wire, single-phase three-wire, three-phase three-wire, and three-phase four-wire
Number of measured circuits		Single-phase two-wire: 4 circuits max., Single-phase three-wire or three-phase three-wire: 2 circuits max., Three-phase four-wire: 1 circuit
Power consumption		7 VA max.
Input	Rated input voltages (power supply voltages)	Single-phase, 2-wire:100 to 277 VAC Single-phase, 3-wire:100 to 240 VAC (L-N) or 200 to 480 VAC (L-L) Three-phase, 3-wire: 173 to 480 VAC (L-L) Three-phase, 4-wire: 100 to 277 VAC (L-N) or 173 to 480 VAC (L-L)
	Allowable supply voltage range	85% to 115% of rated power supply voltage
	Connectable CTs	General-purpose CT with a rated secondary current of 1 A or 5 A 1
	Maximum CT secondary current	6 A
	Rated input frequency	50/60 Hz
Ambient operating temperature		−25 to 55°C (with no condensation or icing)
Ambient operating humidity		25% to 85%
Storage temperature		−25 to 85°C (with no condensation or icing)
Storage humidity		25% to 85%
Operating altitude		2,000 m max.
Installation environment		Overvoltage category II, measurement category II, pollution degree 2
Electromagnetic environment		Industrial electromagnetic environment (EN/IEC 61326-1 Table 2)
Compliant standards		EN 61010-2-030, EN 61326-1, and UL 61010-1

Ratings (Connectable OMRON Split-type Current Transformers (CTs))

Item	KM20-CTN100	KM20-CTN250	KM20-CTN500
Rated primary current	100 A	250 A	500 A
Rated secondary current	1 A	1 A	1 A
Rated frequency	50/60 Hz
Insulation resistance	100 MΩ min. (at 500 VDC) (Between through hole and output lead)
Dielectric strength	2,000V AC 1min. (Between through hole and output lead)
Cable length	1 m
Through-hole	24 diameter		36 diameter
Weight	Approx. 210 g		Approx. 500 g
Operating temperature and humidity ranges	−20 to 55 °C, 85% max. relative humidity (with no condensation)
Storage temperature and humidity ranges	−30 to 90 °C, 85% max. relative humidity (with no condensation)

Performance (Power monitor)

Item		KM-N2-FLK
Measured items		Total power consumption (active, regenerative, and reactive), power (active and reactive), current, voltage, power factor, and frequency
Measurement specifications	Active power	0.5% (IEC 62053-22 class 0.5S) 2
	Reactive power	2% (IEC 62053-23 class 2) 1
	Sampling cycle	80 ms for 50 Hz and 66.7 ms for 60 Hz
Insulation resistance		Between all electrical circuits and the case: 20 MΩ min. (at 500 VDC) Between all power supply and voltage inputs and all communications and pulse output terminals: 20 MΩ max. (at 500 VDC)
Dielectric strength		Between all electrical circuits and the case: 2,200 VAC for 1 min Between all voltage and current inputs and all communications and pulse output terminals: 2,200 VAC for 1 min
Vibration resistance		Single amplitude: 0.1 mm, Acceleration: 15 m/s2, Frequency: 10 to 150 Hz, 10 sweeps for 8 min each along three axes
Shock resistance		150 m/s², 3 times each in 6 directions (up/down, left/right, forward/backward)
Indications and operation method		LED/LCD indications and operation buttons
Weight		Approx. 350 g (Power Monitor only)
Degree of protection		IP20
Pulse output	Number of outputs	Number of outputs: 4 (photoMOS relay outputs) Used for the total power consumption pulse output.
	Output capacity	50 mA at 40 VDC ON residual voltage: 1.5 V max. (for output current of 50 mA) OFF leakage current: 0.1 mA max.
	Output unit	Output unit: 1, 10, 100, 1k, 5k, 10k, 50k, or 100k (wh) Pulse ON time: 500 ms (Cannot be changed.)
Communications interface	Communications method	RS-485 (2-wire half-duplex with start-stop synchronization)
	Communications protocol	Modbus (RTU): Binary. CompoWay/F: ASCII
	Baud rate	1.2, 2.4, 4.8, 9.6, 19.2, or 38.4 kbps
	Data length	Data length: 7 or 8 bits Stop bits: 1 or 2 bits Vertical parity: Even, odd, or none
	Maximum transmission distance	1,200 m
	Maximum number of connected Power Monitors	Modbus: 99, CompoWay/F: 31 If you measure more than one circuit with one Power Monitor, the number of circuits is treated as the number of connected Power Monitors.
Dimensions (H×W×D)		90 × 90 × 65 mm (excluding protrusions)
Installation method		DIN Rail mounting
Accessories		Instruction Manual and Compliance Sheet