Comprehensive Product Summary – PM‑3133‑100‑MTCP Three‑Phase Smart Power Meter

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### 1. Product Overview

Product Name: PM‑3133‑100‑MTCP
Article Number: PM‑3133‑100‑MTCP
Series: PM‑3133 Series Smart Power Meters
Manufacturer: ICP DAS Co., Ltd.
Product Type: Three‑phase power meter with Modbus TCP communication
Description: The PM‑3133‑100‑MTCP is a compact, high‑accuracy three‑phase power meter designed for industrial and commercial energy monitoring applications. It supports Modbus TCP communication over Ethernet (with optional PoE), measures true RMS voltage and current, and provides comprehensive power and energy parameters for single‑phase and three‑phase systems.

The device is part of ICP DAS’s Energy Management (EM) product line, engineered for real‑time monitoring, analysis, and control of electrical energy consumption in distributed systems. It integrates Rogowski Coil soft current transformers (CTs) for simplified installation and supports multiple wiring configurations (1P2W, 1P3W, 3P3W, 3P4W).

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### 2. Key Features

- True RMS Measurement: Accurately measures true RMS voltage and current, ensuring precise readings even under distorted waveforms.
- Wide Voltage Range: Operates from 10 V to 500 V AC (CAT III), suitable for global low‑ and medium‑voltage systems.
- High Current Measurement Capability: Supports Rogowski Coil CTs for current ranges up to 2000 A (depending on CT model).
- High Accuracy: Power measurement accuracy better than 0.5 % (PF = 1) for the PM‑3133‑100‑MTCP model; < 1 % for Rogowski‑coil variants.
- Multiple Wiring Modes: Compatible with 3P4W‑3CT, 3P3W‑2CT, 3P3W‑3CT, 1P3W‑2CT, and 1P2W‑1CT configurations.
- Comprehensive Power Parameters: Measures Vrms, Irms, active power (kW), reactive power (kVAR), apparent power (kVA), energy (kWh, kVARh, kVAh), power factor, frequency, and total harmonic distortion (THD).
- Fast Data Update: 1‑second data refresh rate for real‑time monitoring.
- Dual Relay Outputs: Two Form A (normally open) power relays rated 5 A @ 250 VAC or 5 A @ 30 VDC for alarms or control.
- Communication Interfaces:
- Ethernet with Modbus TCP protocol (PoE supported, IEEE 802.3af)
- RS‑485 (Modbus RTU) and CANopen available in other models
- DIN‑Rail Mounting: Compact 127 × 105 × 33 mm enclosure for standard 35 mm DIN‑rail installation.
- Wide Operating Temperature: −20 °C to +70 °C for harsh industrial environments.
- Low Power Consumption: Typical 2–4 W at 12–48 V DC input.
- Isolation Protection: 2500–3000 V DC isolation between communication and power circuits.
- Rogowski Coil CTs: Flexible, large‑window (Ø 55 mm / 80 mm / 105 mm) soft CTs for easy installation around large conductors without disconnecting cables.
- Alarm and Control Integration: Relay outputs can trigger external alarms, lighting, or sirens based on threshold conditions.
- Protocol Flexibility: Modbus TCP for Ethernet networks; compatible with SCADA, PLCs, and energy management systems.

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### 3. Technical Specifications

| Parameter | Specification |
|----------------|-------------------|
| Model | PM‑3133‑100‑MTCP |
| Measurement Type | Three‑phase, true RMS |
| Wiring Configurations | 1P2W‑1CT, 1P3W‑2CT, 3P3W‑2CT, 3P3W‑3CT, 3P4W‑3CT |
| Input Voltage Range | 10 – 500 V AC (CAT III) |
| Input Current Range | CT Φ 16 mm (100 A) standard; optional 60 A (Φ 10 mm) or 200 A (Φ 24 mm) |
| Frequency | 50 / 60 Hz |
| Accuracy | Better than 0.5 % (PF = 1) |
| Starting Current | > 0.05 A (for 100 A CT) |
| Measured Parameters | Vrms, Irms, kW, kWh, kVA, kVAh, kVAR, kVARh, PF, frequency, THD |
| Data Update Rate | 1 second |
| Relay Outputs | 2 × Form A (N.O.) relays, 5 A @ 250 VAC / 5 A @ 30 VDC |
| Communication Interface | Ethernet (Modbus TCP, PoE IEEE 802.3af) |
| Isolation Voltage | 2500 V DC (communication / power) |
| Power Supply | +12 V DC to +48 V DC or PoE |
| Power Consumption | 4 W max |
| Dimensions (W × L × H) | 127 mm × 105 mm × 33 mm |
| Mounting | 35 mm DIN‑rail |
| Operating Temperature | −20 °C to +70 °C |
| Storage Temperature | −25 °C to +80 °C |
| Humidity | 10 % – 90 % RH (non‑condensing) |
| Enclosure Material | Industrial‑grade ABS or PC plastic |
| Weight | Approx. 250 g (without CTs) |

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### 4. Functionality

The PM‑3133‑100‑MTCP continuously measures electrical parameters across three‑phase or single‑phase circuits. Using true RMS computation, it accurately captures voltage and current waveforms, even under non‑linear loads. The meter calculates instantaneous and cumulative energy values, including active, reactive, and apparent power and energy, as well as power factor and frequency.

Use Cases and Applications:
- Industrial energy management and load profiling
- Building automation and facility monitoring
- Sub‑metering for tenants or departments
- Integration with SCADA or PLC systems via Modbus TCP
- Power quality analysis (THD monitoring)
- Alarm and event triggering through relay outputs

Compatibility:
- Works with ICP DAS Modbus TCP controllers, SCADA software, and third‑party Modbus‑compliant systems.
- Rogowski Coil CTs allow installation on existing busbars or cables without service interruption.
- Supports both low‑voltage (primary) and medium/high‑voltage (secondary) measurement when used with appropriate PTs and CTs.

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### 5. Components & Accessories

Included Components:
- PM‑3133‑100‑MTCP main unit
- Three split‑type clip‑on CTs (Φ 16 mm, 100 A)
- Quick Start Guide and documentation
- Terminal block connectors for voltage and relay wiring

Optional Accessories:
- Rogowski Coil CTs (PM‑3133‑RCT500P / 1000P / 2000P) for 500 A – 2000 A ranges
- RS‑485 or CANopen variants (PM‑3133‑RTU, PM‑3133‑CPS)
- tM‑SG4 / SG‑785 bias resistor modules for RS‑485 networks
- DIN‑rail mounting hardware (standard 35 mm rail)
- Ethernet cables and PoE injectors

Connectors:
- Screw‑type terminal blocks for voltage and relay outputs
- RJ‑45 Ethernet port (10/100 Base‑T, PoE)
- LED indicators for power, run, and relay status

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### 6. Installation & Setup

Mounting Requirements:
- Standard 35 mm DIN‑rail mounting within electrical panels.
- Ensure adequate ventilation and spacing for heat dissipation.
- Avoid installation near strong electromagnetic fields or high‑voltage switching devices.

Electrical Connections:
- Voltage inputs connected to R, S, T (and N for 3P4W) phases.
- CTs installed on corresponding phase conductors with correct orientation (K → L arrow direction).
- Relay outputs wired to external alarm or control circuits (max 5 A load).

Configuration:
- Network parameters (IP address, subnet mask, gateway) configurable via Modbus TCP or DIP switches.
- DIP switches allow selection of communication settings, baud rate, and Modbus ID (for RS‑485 variants).
- Default Ethernet settings:
- IP Address: 192.168.0.2
- Subnet Mask: 255.255.255.0
- Gateway: 192.168.0.1
- Power input: +12 V DC to +48 V DC or PoE IEEE 802.3af.

CT Installation Guidelines:
- Open the CT clip, place around the conductor, and close securely.
- Observe K → L direction for current flow from source to load.
- Avoid mixing CTs of different ratings.
- Ensure CTs correspond to correct phase sequence (A‑B‑C).

Safety Notes:
- Installation must be performed by qualified electricians.
- Disconnect power before wiring.
- Do not exceed rated voltage or current inputs.

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### 7. Performance & Capabilities

Measurement Performance:
- Accuracy: ±0.5 % for active power (PF = 1)
- Response Time: 1 s data update
- Dynamic Range: 10 V – 500 V input; up to 100 A (standard CT)
- THD Measurement: Supports total harmonic distortion analysis for voltage and current.

Relay Performance:
- Type: Form A (N.O.) SPST
- Contact Rating: 5 A @ 250 VAC / 5 A @ 30 VDC
- Operate Time: 6 ms typical
- Release Time: 3 ms typical

Environmental Performance:
- Operating Temperature: −20 °C to +70 °C
- Storage Temperature: −25 °C to +80 °C
- Humidity: 10 % – 90 % RH (non‑condensing)

Electrical Isolation:
- 2500 V DC isolation between communication and power circuits.

Power Efficiency:
- Low consumption (2–4 W) minimizes heat generation and supports PoE operation.

Limitations:
- Designed for AC systems only (50/60 Hz).
- Not intended for direct connection to high‑voltage lines without external PTs/CTs.
- CT orientation and phase sequence must be correct to ensure accurate measurements.

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### 8. Standards & Compliance

- Electrical Safety: CAT III (500 V AC rated input)
- Communication Standards: Modbus RTU / Modbus TCP / CANopen protocols
- Ethernet Compliance: IEEE 802.3af (PoE)
- Isolation Protection: 2500–3000 V DC isolation barrier
- Environmental Compliance: RoHS Directive compliant
- Quality Assurance: Manufactured under ICP DAS ISO 9001 certified processes
- EMC Compliance: Designed to meet industrial EMC standards for noise immunity and emission control

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### 9. Additional Information

Warranty:
ICP DAS provides a one‑year limited warranty from the date of shipment against defects in materials and workmanship. The warranty does not cover damage caused by improper installation, unauthorized modification, or misuse.

Maintenance:
- Clean the instrument with a soft dry cloth; avoid solvents or volatile cleaners.
- Periodically verify tightness of terminal connections.
- Inspect CT clips for secure closure and correct orientation.

Support & Service:
- Technical Support: service@icpdas.com
- Sales Inquiries: sales@icpdas.com
- Website: [www.icpdas.com](http://www.icpdas.com)
- Telephone: +886‑3‑597‑3366

Firmware & Software Updates:
Firmware updates and configuration utilities are available from the ICP DAS website. Users can update device firmware via Ethernet to enhance functionality or add protocol support.

Documentation:
- PM‑3133 User’s Manual v1.07
- Quick Start Guide V1.1
- Energy Management Solution Brochure (EM 4.05.04)

Model Variants in the PM‑3133 Series:
| Model | Interface | CT Type / Range | Protocol |
|------------|----------------|---------------------|--------------|
| PM‑3133‑60A‑RTU | RS‑485 | 60 A CT (Φ 10 mm) | Modbus RTU |
| PM‑3133‑100‑MTCP | Ethernet (PoE) | 100 A CT (Φ 16 mm) | Modbus TCP |
| PM‑3133‑200‑CPS | CANopen | 200 A CT (Φ 24 mm) | CANopen |
| PM‑3133‑RCT500P / 1000P / 2000P | RS‑485 / Ethernet / CANopen | Rogowski Coil CT (500 A – 2000 A) | Modbus RTU / TCP / CANopen |

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### Summary

The ICP DAS PM‑3133‑100‑MTCP is a high‑precision, network‑enabled three‑phase power meter optimized for industrial energy management. It combines accurate true RMS measurement, flexible wiring support, and robust Modbus TCP communication in a compact DIN‑rail form factor. With dual relay outputs, PoE support, and wide environmental tolerance, it is ideal for integration into SCADA, PLC, and IoT‑based energy monitoring systems.

Its modular design and Rogowski Coil compatibility simplify installation in retrofit or high‑current applications, while its 0.5 % accuracy and 1‑second update rate ensure reliable real‑time data for load analysis, demand management, and power quality assessment.

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Manufacturer: ICP DAS Co., Ltd.
Product Line: Energy Management Solutions – PM‑3133 Series
Model: PM‑3133‑100‑MTCP
Communication: Modbus TCP over Ethernet (PoE)
Measurement Range: 10 – 500 V AC, up to 100 A CT
Accuracy: ± 0.5 % (PF = 1)
Operating Temperature: −20 °C to +70 °C
Dimensions: 127 × 105 × 33 mm
Mounting: DIN‑rail 35 mm
Relay Outputs: 2 × Form A (5 A @ 250 VAC / 30 VDC)
Power Input: +12 – 48 V DC or PoE
Compliance: CAT III, RoHS, IEEE 802.3af

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End of Product Summary – PM‑3133‑100‑MTCP Three‑Phase Smart Power Meter