Penerangan

CIRCUTOR CVM-C11 Power Analyzer

Model referenced: CVM-C11-ITF-IN-485-ICT2 Code: M58541

Panel mounted 96 x 96 mm power analyzer with power logging.
Measures electrical consumption and power quality variables including THD% and harmonics.
Individual voltage and current harmonics up to the 31st harmonic.
Neutral current measurement for imbalance and neutral conductor overload visibility.
Suitable for medium-voltage and low-voltage installations through CT/VT connection.
RS-485 communications with Modbus/RTU and BACnet support.

The CIRCUTOR CVM-C11 is a 96 x 96 mm panel-mounted power analyzer with integrated power logging. It is designed for monitoring electrical consumption and power quality variables, including voltage and current THD%, individual harmonics up to the 31st harmonic, active and reactive power, and neutral current. Its 4-quadrant measurement capability makes it suitable for both consumption and generation monitoring applications, including grid, generator and photovoltaic sources.

CVM-C11 as a compact, versatile analyzer for electrical panels where energy visibility, harmonic monitoring, tariff allocation, alarms and digital integration through RS-485 are required.

Key Features

Feature	Description
Compact Panel Mounting	96 x 96 mm format suitable for standard electrical panel installation.
Power Logging	Designed with power logging for electrical consumption and operational analysis.
Power Quality Visibility	Displays voltage and current THD%, plus individual harmonics per phase up to the 31st harmonic.
Neutral Current Measurement	Helps detect phase imbalance and possible neutral conductor overload conditions.
4-Quadrant Measurement	Supports consumption and generation monitoring across Q1, Q2, Q3 and Q4 quadrants.
Tariff Discrimination	Supports consumption discrimination across three tariffs using digital inputs.
Alarm and Control Outputs	Includes 2 relay outputs and 2 transistor outputs for alarm control or pulse output applications.
Industrial Communications	RS-485 communication with Modbus/RTU and BACnet protocol support.
Local Display Interface	Backlit LCD with user-defined parameter display, graphical active power display and LED alarm indication.

Main Applications

Application	Description
Energy Monitoring	Monitor consumption and generation in LV and MV electrical installations.
Tariff / Shift Analysis	Discriminate consumption into three tariffs, useful for work shifts or multiple energy sources.
Generator / PV / Grid Segregation	Use digital inputs to separate energy use from grid, generator or photovoltaic generation.
Power Quality Monitoring	Track THD% and individual harmonics up to the 31st harmonic for voltage and current.
Neutral Overload Detection	Measure neutral current to support imbalance and neutral conductor loading analysis.
Alarm and Automation	Generate alarm or pulse outputs based on measured or calculated electrical parameters.

Quick Specification Summary

Parameter	CVM-C11-ITF-IN-485-ICT2
Product type	Power analyzer, panel mounted
Panel format	96 x 96 mm
Model	CVM-C11-ITF-IN-485-ICT2
Code	M58541
Measuring channels	4
Input current	.../5 A or .../1 A
Communications	RS-485
Protocols	Modbus/RTU and BACnet
Harmonics	Up to 31st harmonic
Digital inputs	2
Relay outputs	2
Transistor outputs	2
Power supply	100...270 Vac/dc

Technical Specifications

AC Power Supply

Specification	Value
Installation category	CAT III 300 V
Consumption	2 ... 5 VA
Frequency	50 ... 60 Hz
Nominal voltage	100 ... 270 V ~ ±10%

DC Power Supply

Specification	Value
Installation category	CAT III 300 V
Nominal voltage	100 ... 270 Vdc ±10%

Mechanical and Environmental

Specification	Value
Size (W x H x D)	96 x 96 x 67.2 mm
Envelope	Self-extinguishing V0 plastic
Fastening	Panel
Weight	0.353 kg
Protection class	IP54 front, IK08
Relative humidity	5 ... 95%, without condensation
Storage temperature	-25 ... +75 °C
Working temperature	-25 ... +70 °C

Current Measurement Circuit

Specification	Value
Installation category	CAT III 300 V
Nominal current (In)	5 A - .../5 A, .../1 A
Phase current measuring range	1 ... 120% In (50 mA ... 6 A)
Minimum current measurement	10 mA

Voltage Measurement Circuit

Specification	Value
Installation category	CAT III 300 V
Input impedance	> 1.7 MΩ
Frequency measuring range	45 ... 65 Hz
Voltage measuring range	5 ... 120% Un (11.5 ... 276 V)
Nominal voltage	230 V Ph-N, 380 V Ph-Ph
Minimum measurement voltage (Vstart)	10 V ~
Maximum value	300 V F-N / 520 V F-F

Communications

Specification	Value
Fieldbus (BACnet)	MS/TP
Fieldbus (ModBus)	RS-485 / RTU
Protocol	ModBus RTU / BACnet
Speed	9600 / 19200 / 38400 bps for ModBus RTU and BACnet

User Interface

Specification	Value
LED	2 LED
Keyboard	3 keys
Display type	LCD Custom COG

Digital Inputs

Specification	Value
Input/output insulation	2000 V
Quantity	2
Type	NPN

Digital Relay Outputs

Specification	Value
Electrical life at maximum load	60 x 10³ cycles
Mechanical life	10 x 10 v cycles
Maximum switching capacity	625 VA / 75 W (AC1)

Digital Transistor Outputs

Specification	Value
Pulse width	30 ms to 400 ms, programmable
Quantity	2
Type	NPN
Maximum frequency	16 impulses/s
Maximum current	50 mA
Maximum voltage	24 Vdc

Measurement Accuracy

Specification	Value
Phase current measurement	0.2%
Phase voltage measurement	0.2%
Active power measurement (kW)	0.5% ± 2 digit
Reactive power measurement (kvar)	1% ± 2 digit

Standards

Specification	Value
Maximum height	2000 m
Installation category	CAT III 300 V
Contamination level/class	Pollution resistance 2
Applicable standards	EN IEC 61326-1, EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6, EN 61000-4-8, EN 61000-4-11, EN 61010-2-030, EN IEC 61557-12, EN 61010-1, UNE-EN 60068-2-2, UNE-EN 60068-2-1, UNE-EN 60068-2-78

Display and Interface

User-defined parameter display.
Backlit screen.
On-screen graphic display of instantaneous active power.
On-screen graphic display of all quadrants: Q1, Q2, Q3 and Q4.
On-screen numerical indication of cos φ or power factor.
On-screen status indication for outputs, inputs and/or active tariff.
LED alarm indicator.
Display of costs, kg of CO2 emitted and operating time per tariff.

Model Variant Table

Code	Type	Ch.	Input current	Trans. out	Relays	Dig. in	Comm.	Protocol	Harm.	Power supply
M58531	CVM-C11-ITF-IN-ETH-ICT2	4	.../5 A .../1 A	2	2	2	Ethernet	Modbus/TCP BACnet	31	100...270 Vac/dc
M58541	CVM-C11-ITF-IN-485-ICT2	4	.../5 A .../1 A	2	2	2	RS-485	Modbus/RTU BACnet	31	100...270 Vac/dc
M58561	CVM-C11-FLEX-IN-485-ICT2	4	100 mV/kA	2	2	2	RS-485	Modbus/RTU BACnet	31	100...270 Vac/dc
M58581	CVM-C11-MC-IN-485-ICT2	4	.../250 mA	2	2	2	RS-485	Modbus/RTU BACnet	31	100...270 Vac/dc

Dimensions and Connection Reference

Wiring reference for a 4-wire three-phase network with auxiliary power supply, voltage inputs, current inputs, relay/transistor outputs, digital inputs and RS-485 terminals.These diagrams are included below for webpage or technical download reference.
Dimensions diagram

Connection diagram - 4-wire three-phase network

Manufacturer disclaimer extracted from datasheet context: CIRCUTOR reserves the right to make technical changes or modify document content/images without prior notice.

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