Серия KM50

Яркий дисплей, монтируемый на панель

KM50 может измерять вырабатываемую и потребляемую энергию, ток и напряжение, а также реактивную мощность, реактивную мощность сдвига фаз, коэффициент мощности и частоту.

Выполняет анализ энергосбережения с помощью встроенной функции классификации энергии.
Высокоточные измерения даже для токов ниже 5% от номинального значения с помощью автоматического переключения диапазонов.
Возможность измерять и различать потребленную и вырабатываемую электроэнергию.
Измерения реактивной мощности и коэффициента мощности.
Встроенное измерение импульсов и прямое преобразование для измерения КПД управления энергопотреблением (шт. / кВтч).
Отсутствие необходимости использовать трансформатор напряжения, непосредственное определение напряжения / трансформатор тока с возможностью открывания
Цветной дисплей
Система передачи данных Modbus
Встроенная регистрация данных

Ordering information

KM50-E Smart power monitor

Applicable circuits	Power supply voltage (shared)	Dimensions	Communications	Protocol	Order code
Single-phase, two wire: 100 to 480 VAC Single-phase, three wire: 100/200 VAC Three-phase, three wire: 100 to 480 VAC Three-phase, four wire: 85 to 277 VAC	100 to 240 VAC	96 × 48 × 93 (H × W × D)	RS-485	CompoWay/F: 31 nodes, Modbus: 99 nodes (Both are supported by the same model.)	KM50-E1-FLK

Applicable circuits

Power supply voltage (shared)

Dimensions

Communications

Protocol

Order code

Single-phase, two wire: 100 to 480 VAC

Single-phase, three wire: 100/200 VAC

Three-phase, three wire: 100 to 480 VAC

Three-phase, four wire: 85 to 277 VAC

100 to 240 VAC

96 × 48 × 93 (H × W × D)

RS-485

CompoWay/F: 31 nodes,
Modbus: 99 nodes
(Both are supported by the same model.)

KM50-E1-FLK

CTs

Rated primary current	Rated secondary current	Installation	Order code
5 A	Special output	Installed separately	KM20-CTF-5A
50 A			KM20-CTF-50A
100 A			KM20-CTF-100A
200 A			KM20-CTF-200A
400 A			KM20-CTF-400A
600 A			KM20-CTF-600A

Note: CT cables are not included with the CTs.

CT Cable

Cable length	Order code
3 m	KM20-CTF-CB3

Note: Either use the CT Cable specified by OMRON or use 1.25-B3A crimp terminals and AWG22 wire from J.S.T. Mfg. Co., Ltd.

Specifications

Ratings

Item		KM50-E
Applicable circuit		Single-phase two wire, single-phase three wire, three-phase three wire and three-phase four wire power
Rated power supply voltage		100 to 240 VAC, 50/60 Hz
Allowable supply voltage range		85% to 110% of rated power supply voltage
Allowable frequency range		45 to 65 Hz
Power consumption		7 VA max.
Rated input	Rated input voltage	100 to 480 VAC (single-phase, 2-wire): Line voltage 100/200 VAC (single-phase, 3-wire): Phase voltage/line voltage 100 to 480 VAC (3-phase, 3-wire): Line voltage 58 to 277 VAC (3-phase, 4-wire): Phase voltage
	Rated input current	5 A, 50 A, 100 A, 200 A, 400 A, or 600 A (primary current of Special CT)1
	Rated frequency	50/60 Hz
	Rated input power	With 5-A CT: 4 kW With 100-A CT: 80 kW With 400-A CT: 320 kW	With 50-A CT: 40 kW With 200-A CT: 160 kW With 600-A CT: 480 kW
	Allowable input voltage	110% of rated input voltage (continuous)
	Allowable input current	120% of rated input current (continuous)
Ambient operating temperature		− 10 to 55°C (with no condensation or icing)
Storage temperature		− 25 to 65°C (with no condensation or icing)
Ambient and storage operation humidity		25% to 85%
Installation environment		Overvoltage category and measurement category: 2, Pollution level: 2

Performance

Smart power monitor

Item		KM50-E
Accuracy	Voltage	± 1.0% FS ± 1 digit (at ambient temperature of 23°C, rated input, and rated frequency). However, the accuracy is ± 2.0% FS ± 1 digit for the Vtr line voltage for three-phase, three wire power and the Vrs line voltage for single-phase, three wire power under the same conditions.
	Current	± 1.0% FS ± 1 digit (at ambient temperature of 23°C, rated input, and rated frequency). However, the accuracy is ± 2.0% FS ± 1 digit for the phase-S current for three-phase, three wire power and the phase-N current for single-phase, three wire power under the same conditions.
	Active power Reactive power	± 2.0% FS ± 1 digit (at ambient temperature of 23°C, rated input, rated frequency, and a power factor of 1) Reactive power formula: Reactive power = v × i × sin θ “v” is the instantaneous voltage and “i” is the instantaneous current. θ is the phase difference between the voltage and current.
	Frequency	± 0.3 Hz ± 1 digit (at ambient temperature of 23°C, rated input, and rated frequency)
	Power factor	± 5.0% FS ± 1 digit (at ambient temperature of 23°C, rated input, rated frequency, and power factor = 0.5 to 1 to 0.5) Power factor formula: Power factor = Active power/Apparent power
	Temperature	± 5°C two hours after the power is turned ON (after setting the offset to match the ambient environment)
Communications	Communications method	RS-485 (two wire half-duplex)
	Sync method	Start-stop
	Unit number setting	CompoWay/F: 0 to 99, Modbus: 1 to 99
	Baud rate	1.2, 2.4, 4.8, 9.6, 19.2, 38.4 kbps
	Transmission code	CompoWay/F: ASCII, Modbus: Binary
	Data length	7, 8 bits
	Stop bit length	1, 2 bits
	Vertical parity	Even, odd, or none
	Maximum transmission distance	500 m
	Maximum number of connected Power Monitors	CompoWay/F: 31, Modbus: 99

CTs

Item	KM20-CTF-5A	KM20-CTF-50A	KM20-CTF-100A	KM20-CTF-200A	KM20-CTF-400A	KM20-CTF-600A
Rated primary current	5 A	50 A	100 A	200 A	400 A	600 A
Secondary winding	3,000 turns				6,000 turns	9,000 turns
Application frequency	10 Hz to 5 kHz
Insulation resistance	Between output terminal and external case: 50 M Ω min. (at 500 VDC)
Dielectric strength	Between output terminal and external case: 2,000 VAC for 1 min
Protective element	7.5 V clamp element
Allowable number of connections/disconnections	100 times
Inner diameter	10 dia.		16 dia.	24 dia.	37 dia.
Operating temperature and humidity range	− 20 to 60°C 85% (with no condensation)
Storage temperature and humidity range	− 30 to 65°C 85% (with no condensation)