GoodWe SBP Series User Manual
AC-Coupled Battery Storage Retrofit
Ver. 1.5
Manufacturer: JIANGSU GOODWE POWER SUPPLY TECHNOLOGY CO.,LTD
Address: No. 90 Zijin Rd., New District, Suzhou, 215011, China
Website: www.goodwe.com
Contact: service@goodwe.com
Model Number: 340-00087-05
Related Apps/Portals: PV Master App, SEMS Portal App, SEMS Portal website (www.semsportal.com)
01 Introduction
General Description
The GoodWe S-BP series bi-directional inverter is designed for both indoor and outdoor use. It can be integrated with existing grid-tied inverter systems to store energy using batteries. Energy produced by grid-tied inverters can optimize self-consumption. Excess energy charges the batteries. If the battery is full, excess power can be exported to the grid. Loads are supported first by the grid-tied system, then by the battery. If energy is insufficient, power is supplied by the grid.
1.1 Operation Modes Introduction
The S-BP system offers several operation modes based on system configuration and layout. These modes can be adjusted via the PV Master App.
- Mode I: Energy from grid-tied inverters optimizes loads. Excess energy charges the battery. If the battery is full, excess power is exported.
- Mode II: When energy from grid-tied inverters is weak, the battery discharges to support the load, working in priority with the grid.
- Mode III: When grid power fails, the battery discharges to support back-up loads.
- Mode IV: The battery can be charged by the grid. Charge time and power can be flexibly set via the PV Master App.
1.2 Safety & Warning
The S-BP series inverter strictly complies with safety rules for product design and testing. Always read and follow all instructions and cautions on the inverter and in this manual during installation, operation, and maintenance to prevent personal or property damage.
Symbols Explanation
- Caution! ⚠️ Failure to observe a warning indicated in this manual may result in injury.
- Danger of high voltage and electric shock! ⚡️
- Danger of hot surface! ?
- Components of the product can be recycled. ♻️
- This side up! ⬆️ The package must always be transported, handled, and stored with arrows pointing upwards.
- No more than six (6) identical packages stacked on each other.
- Products should not be disposed of as household waste. ?️
- Fragile ? - Handle carefully and never tip over or sling.
- Refer to the operating instructions. ➡️
- Keep dry! ? Protect from excessive humidity and store under cover.
- Signals danger due to electric shock and indicates a 5-minute waiting period before touching internal parts after disconnecting power. ⚡️ 5 min
- CE Mark CE
1.3 Product Overview
The S-BP series inverter features various LED indicators for system status:
Indicator | Status | Explanation |
---|---|---|
SYSTEM | ON | SYSTEM IS READY |
BLINK | SYSTEM IS STARTING UP | |
OFF | SYSTEM IS NOT OPERATING | |
BACK-UP | ON | BACK-UP IS READY / POWER AVAILABLE |
OFF | BACK-UP IS OFF / ON POWER AVAILABLE | |
BATTERY | ON | BATTERY IS CHARGING |
BLINK 1 | BATTERY IS DISCHARGING | |
BLINK 2 | BATTERY IS LOW / SOC IS LOW | |
OFF | BATTERY IS DISCONNECTED / NOT ACTIVE | |
GRID | ON | BATTERY IS ACTIVE AND CONNECTED |
BLINK | GRID IS ACTIVE BUT NOT CONNECTED | |
OFF | GRID IS NOT ACTIVE | |
ENERGY | ON | CONSUMING ENERGY FROM GRID / BUYING |
BLINK 1 | SUPPLYING ENERGY TO GRID / ZEROING | |
BLINK 2 | SUPPLYING ENERGY TO GRID / SELLING | |
OFF | GRID NOT CONNECTED OR SYSTEM NOT OPERATING | |
COM | ON | WiFi CONNECTED / ACTIVE |
BLINK 1 | WiFi SYSTEM RESETTING | |
BLINK 2 | WiFi NOT CONNECT TO ROUTER | |
BLINK 4 | WiFi SERVER PROBLEM | |
OFF | WiFi NOT ACTIVE | |
FAULT | ON | FAULT HAS OCCURRED |
BLINK 1 | OVERLOAD OF BACK-UP | |
OFF | NO FAULT |
The product overview details various ports and indicators:
Ports: Smart Meter Communication Cable, Battery Terminals, RS485, Wi-Fi Box, BMS Communication Cable, On-Grid Port, Back-Up Port, Reset/Reload Button, Exhaust Valve.
LED Indicators: SYSTEM, BACK-UP, BATTERY, GRID, ENERGY, WiFi, FAULT.
Other Components: Heat sink, Exhaust Valve.
Safety Warning: Installation and operation must be performed by qualified electricians, complying with local standards and wiring rules (e.g., AS 4777 and AS/NZS 3000 in Australia).
Prohibit inserting or pulling AC and DC terminals while the inverter is running.
Before any wiring or electrical operation, disconnect all DC and AC power for at least 5 minutes to ensure the inverter is totally isolated and prevent electric shock.
The inverter surface temperature may exceed 60°C during operation. Allow it to cool down before touching and keep it out of reach of children.
Do not open the inverter cover or change components without manufacturer authorization; this will void the warranty.
Usage and operation must follow this manual; otherwise, protection design may be impaired, and the warranty will be void.
Use appropriate methods to protect the inverter from static damage. Static damage is not covered by the warranty.
The inverter includes an RCMU to limit DC residual current to 6mA. An external RCD (Type A, ≥30mA) can be used.
In Australia, the inverter's internal switching does not maintain neutral integrity. This must be addressed by external connection arrangements as shown in the Off-Grid System Connection Diagram (page 17).
In Australia, the back-up side output in the switchbox should be labeled "Main Switch UPS Supply," and the normal load side should be labeled "Main Switch Inverter Supply."
02 Installation Instructions
2.1 Unacceptable Installations
Avoid the following installations, which can damage the system or inverter:
- Back-up connected to grid. ❌
- Back-up connected in parallel. ❌
- Incompatible battery connected. ❌
- One meter connected to multiple inverters, or different CTs to a Smart Meter. ❌
- One battery bank connected to multiple inverters. ❌
- AC generators connected to On-Grid or Back-Up sides. ❌
- Inverter battery input connected to incompatible batteries. ❌
- Inverter used in grid-less areas without off-grid function support. ❌
2.2 Packing List
Verify all components are present and undamaged upon receiving the S-BP series inverter:
- Inverter
- Wall-mounted Bracket
- Smart Meter
- Battery Terminal
- PE Terminal
- Pin Terminal (x2)
- AC Cover
- Battery Cover
- Expansion Bolts
- Hexagon Head Screw
- Pan Head Screw
- User Manual
- Quick Installation Guide
2.3 Mounting
2.3.1 Select Mounting Location
Select a careful mounting location for inverter protection and maintenance, following these rules:
- Ensure no part of the system blocks access to switches and breakers for DC and AC power disconnection.
- Rule 1: Install on a solid surface suitable for the inverter's dimensions and weight.
- Rule 2: Install vertically or on a slope up to 15°. ⬆️⬇️
- Rule 3: Ambient temperature must be below 45°C to prevent power derating.
- Rule 4: Protect the inverter from direct sunlight, snow, rain, and lightning. ☀️ ?️ ⚡️
- Rule 5: Install at eye level for convenient maintenance.
- Rule 6: Ensure the product label is clearly visible after installation.
- Rule 7: Maintain adequate space around the inverter as per the diagram: 300mm upward, 500mm downward, 300mm front, 200mm on both sides.
Warning: Inverter cannot be installed near flammable, explosive, or strong electro-magnetic equipment. [1] ⚠️
2.3.2 Mounting
Delivery and Handling:
- Pack the inverter securely for transport.
- Transport using carrying handles. Avoid shocks.
- Ensure box arrows point upwards during transport.
- Secure the inverter firmly for transport.
Mounting Surface: The inverter is suitable for mounting on concrete or other non-combustible surfaces only.
Note: Lift the inverter from the packing case carefully to prevent damage. Do not use wiring terminals or ports to support the inverter's weight. Place padding underneath to protect the enclosure.
Step 1: Wall Mounting
Use the mounting bracket as a template to drill 6 holes (10mm diameter, 80mm depth). Fix the bracket tightly to the wall using expansion bolts. Ensure the wall's bearing capacity is over 25kg.
Step 2: Placing the Inverter
Carry the inverter by the heat sink on both sides and place it onto the mounting bracket. Ensure the heat sink aligns with the bracket.
Step 3: Grounding
Connect the ground cable to the ground plate on the grid side.
Step 4: Security Lock
A lock can be used for anti-theft purposes if required. The lock is not included and must be purchased separately.
2.4 Electrical Wiring Connection
2.4.1 Battery Wiring Connection
For lithium batteries, capacity should be 50Ah or larger. Lead-acid batteries are not permitted without GoodWe's authority. Battery cable requirements:
Cable | Description | Value |
---|---|---|
A | Outside Diameter | 10-12mm |
B | Isolation section | NA |
C | Conductor Core | 20-35mm² |
Warning: Be careful of electric shock or chemical hazards. Ensure an external DC breaker (≥125A) is connected for batteries without a built-in DC breaker. ⚠️
Battery Wiring Steps:
Note: Ensure the battery switch is OFF and the battery nominal voltage matches the S-BP specification. Isolate the inverter from PV and AC power before connecting. [4]
Step 1: Prepare Cables
Prepare battery cables and accessories. Pass the battery power cable through the battery cover. Use GoodWe accessories. Battery power cable should be 25-35mm².
Step 2: Crimp Terminals
Strip cable coat to 10mm. Use a special crimper to compress the battery terminal tightly.
Step 3: Connect Terminals
Connect the battery terminal to the inverter. Ensure correct polarity (+/-) and tighten to 6-8 N.m. For compatible lithium batteries (LG, PYLON, BYD, GCL, DYNESS, ALPHA), refer to the S-BP QUICK INSTALLATION INSTRUCTIONS.
Battery Protection Description: The battery acts as a protective charge/discharge current limiter based on conditions like low SOC, low voltage, over-temperature, communication issues, or BMS limitations. If these limits are reached:
- Under on-grid mode, charge/discharge operations may be abnormal.
- Under off-grid mode, Back-Up supply will shut down.
Note: On-grid mode protects against over-discharge via DOD and voltage. Off-grid mode prioritizes discharge voltage protection. DOD settings prevent reserve power discharge. If SOC drops too low, the inverter may boost it. This protects the battery and inverter.
2.4.2 On-Grid & Back-Up Connection
An external AC breaker is required for On-Grid connection to isolate the inverter from the grid. Requirements:
- Use a separate AC breaker for each inverter.
- Connect the breaker before loads (between inverter and loads).
On-grid wiring process: Ensure the inverter is isolated from DC and AC power before connecting AC cables. [5] ⚠️
Step 1: Prepare Terminals and Cables
Prepare terminals and AC cables as per the table:
Grade | Description | Value |
---|---|---|
A | Outside diameter | 11-12 mm |
B | Isolation section | NA |
C | Conductor wire length | 7-9 mm |
D | Conductor core section | 4-6 mm² |
Note: Neutral cable: blue. Line cable: black or brown. Protective earth cable: yellow-green. PE cable must be longer than N & L cables.
Step 2: Route Cables
Route AC cables through the terminal cover in the specified sequence. Use GoodWe terminals.
Step 3: Connect Conductors
Press the six connectors onto the cable conductor core tightly. Ensure the cable jacket is not locked within the connector.
Step 4: Connect to Inverter
Connect the assembled AC terminals to the inverter, ensuring correct side connection. Lock the cover and screw on the cap. Tighten to 2-2.5 N.m.
Declaration for Back-up Function: This statement outlines GoodWe's general policies for energy storage inverters (ES, EM, SBP, ET, EH, BH).
For Hybrid inverters (ES, EM, EH, ET), if systems are not connected to batteries, back-up function is not advised. GoodWe is not liable for consequences arising from non-compliance.
Back-up switching time is typically <10ms (UPS level). However, external factors can affect performance. Follow these instructions:
- Do not connect loads dependent on stable energy supply for reliable operation.
- Do not connect loads exceeding maximum back-up capacity.
- Avoid loads with high start-up current surges (e.g., air conditioners, high-power pumps).
- Battery current may be limited by factors like temperature and weather.
Declaration for Back-up Loads: The GoodWe S-BP inverter provides a continuous 5000VA output (max 5500VA for 10s) on Back-Up. It may shut down under full load with high ambient temperature if the grid is absent.
- Accepted Back-Up Loads: Television, computer, fridge, fan, illumination lamps, microwave oven, electrical rice cooker, router.
- Unacceptable House Loads for Back-Up: Air conditioner, water pump, heaters, washing machine, electromagnetic oven, compression engine, hair dryer, dust cleaner, and other high-power loads with high inrush current.
Special Adjustable Settings: The inverter has adjustable settings like tripping point, tripping time, reconnect time, and QU/PU curves. Contact after-sales for special firmware and adjustment methods.
An SP3T switch can be installed for convenient maintenance, allowing selection of Back-Up, On-Grid, or isolated load support.
2.4.3 Smart Meter & CT Connection
The single-phase Smart Meter with 2 CTs (or 3-phase) is compulsory for S-BP system installation. It detects grid voltage, current direction, and magnitude to instruct the S-BP inverter via RS485 communication.
Warning: Ensure S-BP and grid-tied inverters are isolated from AC and DC power before connecting the Smart Meter and CT. ⚠️
Single-phase Smart Meter & CT Connection Diagram
Connect the Smart Meter to the Grid-Tied Inverter, S-BP inverter, PV, and Load. CT1 connects between House and Grid, CT2 connects between S-BP and Load. Ensure correct polarity and connection direction ("House → Grid"). Do not connect CT2 if not in use.
Three-phase Smart Meter & CT Connection Diagram
Similar to single-phase, but with L1, L2, L3 connections for three-phase systems. CT1, CT2, CT3 are used.
Notes on Smart Meter:
- Note: Use the Smart Meter with 3 CTs from the GoodWe box. CT cable is 3m (extendable to 5m). Smart Meter communication cable (RJ45) is extendable to 100m using standard RJ45 cables.
Detailed Pin Function of Each Port on S-BP
Describes pin functions for BMS (CAN/RS485) and Smart Meter (RS485) communication.
Smart Meter LED Indications
LED | Status | Indication |
---|---|---|
POWER | OFF | Not working |
ON | Working | |
ENERGY | Blinking | Importing / Exporting |
COM | Blinking once | Transferring data to inverter |
Anti-reverse Function Connection
This function is for installations with exporting power limit requirements. It can be set via PV Master App (Advanced Setting > Power Limit). This diagram applies if the grid-tied inverter has built-in anti-reverse function. Power limitation is set on the grid-tied inverter. Using this function may result in buying ~100W from the grid.
2.5 DRED & Earth Fault Alarm
2.5.1 DRED Connection
DRED (Demand Response Enabling Device) is used for Australia and New Zealand, and also as a remote shutdown function in European countries. It complies with safety requirements. The DRED device is not supplied by GoodWe.
DRED/Remote Shutdown Connection Steps:
Step 1: Access Port
Unscrew the plate to access the "DRED port" for connection.
Step 2: Prepare Terminal
Plug out the 6-pin terminal and remove the resistor. Leave the terminal for the next step. (The 6-pin terminal functions as DRED/Remote Shutdown; leave it in the inverter if no external device is used).
Step 3-1: DRED Connection
Connect the cable to the 6-pin terminal. Pin functions: DRM1/5, DRM2/6, DRM3/7, DRM4/8, REFGEN, COM/DRMO.
Step 3-2: Remote Shutdown Connection
Connect the cable to the 6-pin terminal (wiring from pins 5 and 6). Pin functions: REFGEN, COM/DRMO.
Step 4: Connect Terminal
Connect the terminal to the correct position on the inverter.
2.6 Earth Fault Alarm Connection
The S-BP series inverter complies with IEC 62109-2 13.9. A fault indicator LED on the inverter cover will light up, and the system will email fault information to the customer.
Wiring System
Wiring System for S-BP Series Hybrid Inverter
For 3-phase Smart Meter wiring, refer to the "3-phase Smart Meter & CT Connection Diagram".
The diagram illustrates the connection of PV, Grid-Tied Inverter, Battery, S-BP Inverter, Smart Meter, CTs, AC Breakers, and Load. It shows the flow of energy and connections for both single-phase and three-phase systems.
System Connection Diagrams
Diagram 1 (Australia, South Africa, New Zealand): Shows a typical grid system connection. Note: For Australian safety compliance, the neutral cable of the on-grid and back-up sides must be connected together for the back-up function to work.
Diagram 2 (Standard Grid System): Illustrates a connection for systems without special electrical wiring requirements. Note: The Back-Up PE line and rack earth must be grounded properly for optimal Back-Up function during grid failure.
Notes on Wiring:
- External DC switch is not necessary for batteries with attached switches.
- Only for lithium batteries with BMS communication.
- Ensure CT direction is correct ("House → Grid").
- AC Breaker ratings: ≥40A for GW3600S-BP, ≥50A for GW5000S-BP.
- After installation, turn off grid power to check Back-Up function to avoid subsequent issues.
03 Manual Operation
3.1 Wi-Fi Configuration
Wi-Fi configuration is essential for online monitoring and maintenance. This section details web page configuration.
Preparation:
- Inverter must be powered up (battery or grid).
- A router with internet access to www.semsportal.com is required.
Step 1: Access Configuration Page
Connect your PC or smartphone to the "Solar-WiFi*" network (last 8 characters of the inverter's serial number). Open a browser and log in to 10.10.100.253 using admin credentials (User: admin, Password: admin).
Step 2: Select Router
Click "Start Setup" to choose your router from the list of available networks. Click "Next".
Step 3: Configure Network and Complete
Enter the router's password, select encryption method/algorithm, and click "Next". Click "Complete" to save settings. The configuration takes effect after a restart.
Note: Ensure password, encryption method, and algorithm match the router's settings. The Wi-Fi LED status indicates connection success (double blink -> quartic blink -> solid).
Wi-Fi configuration can also be done via the PV Master App.
Wi-Fi Reset & Reload
Wi-Fi Reset: Short press the touch button (~1 sec) to restart the Wi-Fi module. The Wi-Fi LED blinks once per second.
Wi-Fi Reload: Long press the touch button (3-5 sec) to reset Wi-Fi settings to factory defaults. The Wi-Fi LED blinks rapidly.
Use Reset/Reload only if: Wi-Fi connection is lost, cannot connect to PV Master App, "Solar-WiFi" signal is not found, or other Wi-Fi configuration issues exist. Do not use if monitoring works well.
3.2 PV Master App
PV Master is an external monitoring and configuration application for hybrid inverters, available for Android and iOS. It allows users to edit system configuration, monitor performance, and perform Wi-Fi configuration. Download from www.goodwe.com or scan the QR code.
3.3 CEI Auto-Test Function
This function is integrated into the PV Master App for Italy's safety country requirements. Refer to "PV Master Operation Instructions" for details.
3.4 Startup/Shutdown Procedure
3.4.1 Startup Procedure
Note: Measure AC voltage with a multimeter before closing the AC breaker to ensure it's within the allowable range.
- Step 1: Turn on the breaker between the inverter and the battery.
- Step 2: Turn on the AC breaker between the inverter and the grid.
- Step 3: Wait ~1 minute, observe the inverter's LED indicators, and check the running status.
3.4.2 Shutdown Procedure
Note: The inverter retains residual electricity and heat after shutdown, posing a shock/burn risk. Wait 5 minutes after powering off and wear protective gloves before operating.
- Step 1: Turn off the AC breaker between the inverter and the grid.
- Step 2: Turn off the DC breaker between the inverter and the battery.
04 Others
4.1 Error Message
Error messages displayed on PV Master App or sent via email:
ERROR MESSAGE | EXPLANATION | REASON | SOLUTIONS |
---|---|---|---|
Utility Loss | Public grid power unavailable | Inverter does not detect grid connection | 1. Check AC voltage. Ensure grid power is available. 2. Verify AC cable connections. 3. Turn off AC breaker, wait 5 mins, then turn on. |
VAC Failure | Grid voltage out of range | Inverter detects AC voltage beyond safety range | 1. Ensure correct safety country setting. 2. Check AC voltage (L-N) with a multimeter. 3. Verify AC cable compliance and length. Ensure good connection and no compressed jacket. 4. Confirm stable grid voltage. |
FAC Failure | Grid frequency out of range | Inverter detects Grid frequency beyond safety range | 1. Ensure correct safety country setting. 2. Check AC frequency (Fac) on inverter display. 3. Occasional failures may be due to grid frequency instability. |
Over Temperature | Inverter internal temperature too high | Inverter working environment leads to high temperature | 1. Decrease surrounding temperature. 2. Ensure installation complies with manual. 3. Turn off inverter for 15 mins, then restart. |
Relay Check Failure | Self-checking of relay fails | Neutral & ground cable not connected well on AC side or occasional failure | Check N&PE voltage (should be <10V). If >10V, re-check connections or restart. |
DC Injection High | Higher DC component in AC output | Caused by strong external magnetic field etc. | Restart inverter. If issue persists, contact GoodWe. |
EEPROM R/W Failure | Internal communication fails | Caused by strong external magnetic field etc. | Restart inverter. If issue persists, contact GoodWe. |
SPI Failure | Internal communication fails | Caused by strong external magnetic field etc. | Restart inverter. If issue persists, contact GoodWe. |
DC Bus High | BUS voltage too high | / | Restart inverter. If issue persists, contact GoodWe. |
Back-up Over Load | Back-up side overloaded | Total back-up load power exceeds nominal output | Decrease Back-Up loads (refer to page 12). |
NOTE: Battery errors apply only to Lithium batteries with BMS communication.
4.2 Troubleshootings
Checking Before Starting S-BP Up
- Battery connection: Confirm polarity (+/-) is correct. Refer to 4.2-1.
- On-Grid & Back-Up connection: Confirm polarity (L/N) is correct for grid and loads. Refer to 4.2-2.
- Smart Meter & CT Connection: Ensure connection between Smart Meter and CT is OK. COM LED on Smart Meter should blink after AC power-on. CT must be connected between house loads and grid, following the "House → Grid" direction. Refer to 4.2-3. For three-phase, refer to page 13.
- Battery Settings, BMS Communication, and Safety Country: After connecting Solar-WiFi, check PV Master APP Param to ensure battery type and Safety Country are correct. If not, set them correctly.
- Lead-acid battery: Settings must comply with battery parameters. Contact GoodWe for advice.
- Lithium batteries: BMS status should be "Communication OK".
Possible problems during operation
S-BP does not start up with only battery
Solution: Ensure battery voltage is higher than 48V.
No discharge or output from S-BP to support loads
Possible Reason: Grid-tied inverter output is higher than required power; load connected between grid and CT; load power < 150W; Smart Meter/CT communication failure; battery low SOC or communication fail.
Solution: Ensure Smart Meter/S-BP communication is OK. Load power must be >150W. Check Smart Meter & CT connection. Ensure SOC is higher than I-DOD. Check if it's charging time (battery won't discharge during charging).
Battery does not charge
Possible Reason: Smart Meter/CT communication failure; battery high SOC or communication fail.
Solution: Ensure BMS communication is OK (for lithium batteries). Check CT connection position and direction.
4.3 Disclaimer
GoodWe is not responsible for issues arising from:
- Damage during transfer.
- Expired warranty.
- Unauthorized installation, refitting, or operation.
- Operation in improper environments or technical conditions not specified.
- Non-compliance with manual requirements.
- Force majeure events (lightning, earthquake, fire, storm, etc.).
- Unauthorized disassembly, software, or hardware changes.
- Operation against international/local policies.
- Non-compatible batteries, loads, or devices.
- Obtaining activation codes through illegal channels.
Note: Manufacturer reserves the right to interpret the manual. For IP65 rating, ensure the inverter is sealed within one day of unpacking. Seal all unused terminals/holes to prevent water/dust ingress.
Maintenance
Periodical maintenance is required:
- Ensure inverter is isolated from AC/DC power for at least 5 minutes before maintenance.
- Clean heat sink annually with a clean towel.
- Tighten AC/DC wiring connections annually with a torque wrench.
- Check DC breaker annually by activating it 10 times to clean contacts and extend lifespan.
- Check water-proof covers (RS485, etc.) annually.
4.4 Technical Parameters
Detailed technical specifications for GW3600S-BP and GW5000S-BP models are provided in tables covering Battery Input, AC Output (On-grid and Back-up), Efficiency, Protection, General Data, Certifications, and Standards.
4.5 Other Test
For Australian requirements, Zref should be added between the inverter and mains for THDi testing.
4.6 Quick Check List To Avoid Danger
- Do not install near flammable, explosive, or strong electro-magnetic equipment (refer to page 06).
- Handle the heavy inverter carefully during unpacking (refer to page 07).
- Ensure battery breaker is off and inverter is isolated from AC power before connecting battery (refer to page 10).
- Ensure inverter is isolated from AC/DC power before connecting AC cable (refer to page 11).
- Ensure AC cable is isolated from AC power before connecting Smart Meter & CT (refer to page 14).
Appendix protection category definition
Overvoltage category definition:
- Category I: For equipment connected to circuits with reduced transient overvoltage.
- Category II: For equipment not permanently connected (appliances, portable tools).
- Category III: For fixed equipment downstream of the main distribution board (industrial installations).
- Category IV: For equipment permanently connected at the origin of an installation (e.g., electricity meters).
Moisture location category definition
Defines moisture parameters and temperature ranges for different levels (3K3, 4K3, 4K4H).
Environment category definition
Defines environment conditions (Outdoor, Indoor Unconditioned, Indoor Conditioned) with ambient temperature, relative humidity, and applied pollution degree (PD3, PD2).
Pollution degree definition
Defines pollution degrees (I to IV) based on conductivity and condensation.