ZENDURE Smart Meter 3CT
Specification
| Product Name | Zendure Smart Meter 3CT |
| Model | ZDSMCT |
| Weight | ≈ 117.57 g |
| Dimensions | 91 x 36.5 x 64 mm |
| Rated System Voltage | 100 ～ 240VAC ±10% |
| Frequency | 50/60Hz |
| Consumption | < 3W |
| Max Measurement per Channel | 120A |
| Protection Level | IP20 |
| Operating Temperature | -20 ～ 40℃ |
| Operating Humidity (RH) | 30 ～ 70% |
| Height of the altitude | 0 ～ 2000M |
| Wireless Type | Bluetooth, 2.4GHz Wi-Fi |
Safety Instructions
Usage
- We strongly recommend that users carefully read the safety regulations and installation instructions and watch the installation video.
- The Zendure Smart Meter 3CT must be installed by a licensed electrician, who should be familiar with all electrical codes, electrical wiring practices and experienced working with home electrical systems. They possess the necessary knowledge and experience to ensure the safety and accuracy of the installation.
- During installation, safety Instructions and installation instructions must be followed to ensure all connections are secure and reliable. Please note that careless installation may result in equipment damage, electrical malfunction, or even injury. Therefore, for your own safety and proper device operation, please proceed with caution.
- Do not install or operate the system under extreme climatic conditions such as lightning, snow, heavy rain, strong winds, etc.
- Please check whether Smart Meter 3CT is damaged, cracked, or cables are damaged before operating. If any, please stop using the product immediately.
- Do not use strong static electricity or magnetic fields.
- It is prohibited to place the equipment in an environment with flammable, explosive gas, or smoke.
- Do not attempt to replace the internal components of the equipment by any unauthorized personnel.
- Ensure that the input power connection is disconnected before installation.
- Do not install or operate the product outdoors or expose to moisture or submerge it in liquid. Only clean the ports with a dry cloth.
- Do not install or operate the product in extreme temperatures. Do not dispose of the product in heat or fire.
- Do not use the product if it is damaged or appears to be damaged. Do not disassemble the product. Consult official Zendure channels when service or repair is required. Incorrect disassembly or reassembly may result in a risk of fire or injury to persons.
- Adhere to all local and national safety regulations for installation and use.
- This product is designed for residential use only. Keep out of reach of children and pets.
- In case of a fire, only a dry powder fire extinguisher is suitable for this product.
- If the product accidentally falls into water during installation and using, please do not continue installation or use, and contact customer service.
EC DECLARATION OF CONFORMITY
ZENDURE TECHNOLOGY CO., LIMITED declares that Smart Meter 3CT complies with Directive 2014/53/EU (RED) . 2011/65/EU(RoHS) , 2015/863/EU(RoHS) . The full text of the Declaration of Conformity is available at the following web address: https://zendure.de/pages/download-center.
Declaration of conformity
The EU Declaration of Conformity can be requested at this address: https://zendure.de/pages/download-center.
Disposal and Recycling
Disposal of packaging: dispose of the packaging separately by type of material.
Disposal of old equipment
(applies in the European Union and other European countries with separate collection (waste collection) Old equipment must not be disposed of in household waste. Every consumer is legally obligated to dispose of old equipment that can no longer be used separately from household waste, for example, at a collection point for recyclables. To ensure proper recycling and avoid a negative impact on the environment, electronic devices must be taken to an appropriate collection site. For this reason, electronic devices are marked with the symbol shown to the left.
Disposal
Batteries and accumulators must not be disposed of in household waste. As a consumer, you are equally obligated to dispose of all batteries and accumulators, regardless of whether they contain pollutants or not, at a designated collection point. Marked with: Cd = Cadmium, Hg = Mercury, Pb = Lead. Discharge any built-in or accessory batteries before disposing.
Symbols Used in This Guide
What’s in the Box
- Zendure Smart
- Meter 3 x 120A Current Transformers(CT)
- User Manual
Overview
System Overview
The Zendure Smart Meter 3CT is a DIN rail-mounted smart meter that monitors voltage, current, and power data in real-time. It can connect via Wi-Fi and Bluetooth to establish connections with other devices and cloud servers, enabling control of operating modes, input/output power, and other functions.
Product Overview
| 2 | IoT Status Indicator |
| 3 | ZenLink Status Indicator |
| 4 | Button |
| 5 | Voltage L1 input (brown) |
| 6 | Voltage L2 input (black) |
| 7 | Voltage L3 input (gray) |
| 8 | Neutral Conductor input |
| 9 | 120A Current Transformer Connector |
| 10 | 50A Current Transformer Connector |
| 11 | 3 x 120A Current Transformers(CT1~CT3) |
Button Controls 
LED Display
Installing Your Smart Meter 3CT
Pre-assembly
Important Safety Instructions
- Risk of Electric Shock: The Smart Meter 3CT device must be installed by a qualified electrician with caution. Before making any connections, ensure that the circuit is de-energized.
- Connect the device only as described in this manual. Any other method may result in damage or injury.
- Do not place the device where it may get wet.
- Keep the Smart Meter 3CT device out of reach of children.
- Do not connect CTs to circuits exceeding the specified maximum load (50A/120A.
- The Smart Meter 3CT three-phase smart meter can be used as a single-phase smart meter.
Installation Preparation
- Power cables: Need to be purchased separately. It is recommended to use solid single-core cables to connect to the Smart Meter 3CT. These cables should have insulation heat resistance and flame retardant properties that comply with European regulations.
Identifying Electrical Circuits in the Distribution Box
Put on Insulating Gloves
Note: Not included. To be provided by the electrician/user.
Turn Off the Power
Before beginning equipment installation, ensure that the power is turned off and there is no voltage at the terminals to avoid an electric shock. This can be verified using a multimeter. Once you have confirmed there is no voltage present, you may proceed with the subsequent installation steps.
Mounting the Smart Meter 3CT
- Mount the device in a suitable distribution box or control panel. Ensure there is enough space for wiring and ventilation.
- The device can be mounted on a DIN rail, which is common in most installation control cabinets.
Wiring
- Prepare the power cables according to the color coding of Live Wire L1/L2/L3 and neutral wire.
- Connect the four power cables to the voltage L1/L2/L3 inputs and neutral conductor input on the Smart Meter 3CT.
- Connect the neutral wire, already connected to the Smart Meter 3CT, to the N wire terminal in the electrical box.
- Connect the Live Wire L1/L2/L3, already connected to the Smart Meter 3CT, to the corresponding terminal of the circuit breaker.
- Connect the 120A Current Transformers (CT1-CT3) sequentially to the 120A Current Transformer Connectors on the Smart Meter 3CT. If you purchased 50A Current Transformers, connect them to the 50A Current Transformer Connector.
- Install the 120A CT on live wires L1, L2, and L3 off the CD, following the current flow direction. Each CT is marked with P1 → P2. The arrow direction (P1 → P2) must align with the current flow in the circuit. This means:
- The P1 side of the CT should be positioned towards the grid
- The P2 side should be positioned towards the home
- This orientation must be followed for all three phases (L1, L2, and L3)|
Power On
Check that all connections are safe and error-free before powering up the device. Turn on the main circuit breaker of your home electrical system. The Smart Meter 3CT will automatically power up, indicated by:
- Power LED: Solid green power indicator
- LoT LED: Blinking, indicating Wi-Fi connection is needed
Zendure App Setup
The Zendure app is continually being improved and may change over time. If there are any differences between the instructions in this guide and the app, follow the in-app instructions. Privacy Policy: By using Zendure Products, Applications, and Services, you consent to the Zendure Terms of Use and Privacy Policy, which you can access via the “About” section of the “User” page in the Zendure app. The Zendure app allows users to monitor and manage power systems, offering real-time power monitoring, historical records, charge/discharge scheduling, and more.
- To download the Zendure app, scan the QR code or search “Zendure” in the Apple App Store® or Google Play Store.
- Open the Zendure app. Log in or sign up.
- Follow the in-app instructions to add your Smart Meter 3CT.
- Please update the firmware to the latest version in the settings before using.
Maintenance
Risk of Electric Shock: The Smart Meter 3CT device must be removed by a qualified electrician with caution. Before disconnecting any wires, ensure that the circuit is de-energized.
- Put on Insulating Gloves (Note: Not Included, To Be Provided by Electrician/User)
- Turn off the main circuit protection switches to avoid an electric shock.
- Remove Current Transformers:
- Remove CT1~CT3 from the home’s L1, L2, L3 circuits
- Disconnect them from the CT Connector on the Smart Meter 3CT
- Disconnect Power Wires:
- Remove Live Wires (L1/L2/L3) connecting between the Smart Meter 3CT and home circuit breaker
- Remove Neutral Wire (N) connecting between the Smart Meter 3CT and the home circuit breaker
- Unmount Device: Remove the Smart Meter 3CT from the DIN rail
FAQs
Q: Can I install the Smart Meter 3CT by myself?
A: No, the Smart Meter 3CT must be installed by a licensed electrician for safety and proper operation.
Q: What should I do if I notice any damage to the Smart Meter 3CT before operating?
A: If you notice any damage, such as cracks or damaged cables, please stop using the product immediately and seek assistance.
Q: Can I clean the product with water?
A: No, only clean the ports with a dry cloth. Do not expose the product to moisture or liquid.
Documents / Resources
 | ZENDURE Smart Meter 3CT [pdf] User Manual Smart Meter 3CT, Meter 3CT, 3CT |