Wallbox Energy Meters Installation Guide

Purpose and Scope of the Document

This document outlines the instructions for installing energy meters compatible with the Power Boost and Eco-Smart functionalities. For instructions to install an MID meter, refer to the relevant Installation Guide.

Important Notes

After installation, connect the energy meter before closing your charger. If the charger was already installed, open it to connect the energy meter.
Only energy meters delivered by Wallbox are compatible.
The installation must be performed only by suitably qualified personnel, according to local regulations.
Ensure the charger is updated with the latest software version before installing the meter.
Ensure the charger is powered off before connecting the meter.
For more information, refer to your charger's Installation Guide on Wallbox Academy.

Materials and Tools

Inside the Box

The following items are included:

A: Energy Meter
B: Meter Wiring Guide
C: Grommet
D: Dynamic Power Sharing Installation Manual

Tools Required

A: Philips Screwdriver
B: Cutting Pliers
C: Torx T9
D: Torx T20
E: Wire Strippers
F: Recommended Cable (STP Class 5E, 500 m Max Length)

Compatibility Table

Meters	Power Boost	Eco-Smart
EM340	PF.A / PF.B	PF.B
EM112	PF.A / PF.B	PF.B
SPM1-100-AC		✗
EM330	✓	✓
CTA 5X 250 A 5A	✓	✓
CTA 6X 400 A 5A	✓	✓
CTD-6S 600 5A	✓	✓
N1CT	✓	✓
PRO2 MOD	✓	✓
PRO380 MOD	✓	✓

Placement

Step 1: Place the energy meter after the mains supply in the fuse box.

Diagram Description: The diagram illustrates the connection flow: Grid (A) connects to Utility Meter (B), which is controlled by a Main Switch (C). This leads to the Fuse Box (D), where the Energy Meter (E) is installed. Communication (F) connects to RCDs+MCBs (G), which then power Other House Loads (H), the Wallbox Charger (I), and a Car (J).

Step 2: For all meters, follow the corresponding manual included in the box.

Meter Models and Ratings:

EM340: 3-Phase < 65 A
EM112: 1-Phase < 100 A
EM330: 3-Phase < 250 A

Note: For EM340 and EM112 meters, only PF.B versions are compatible with Eco-Smart functionality. For Power Boost, both PF.A and PF.B versions of EM340 and EM112 are compatible. Refer to the Eco-Smart configuration article for more details.

Meter Specifics

SPM1-100-AC

Usage: For 1-Phase installation, up to 100A.

Installation:

Clip the power meter to the mains power cable.
Ensure the neutral cable is not drawn through the clamp.
Insert the cable through the clamp in the correct direction as shown.

*Not compatible with the Eco-Smart functionality.

Pro MOD2 / Pro 380 MOD / N1 CT

Ratings:

Pro MOD2 / Pro 380 MOD: A. 1-Phase < 100A, B. 3-Phase < 65A, C. 1-Phase < 80A
N1 CT: Specific connections described in wiring diagrams.

Wiring Diagrams

Detailed wiring diagrams are provided for various Wallbox devices and meters:

Pulsar Plus

EM112: Terminals T(3), A-(5), B+(4), GND(6)
EM340: Terminals T(7), A-(9), B+(8), GND(10)
EM330: Terminals T(10), A-(12), B+(11), GND(13)
N1 CT: Terminals A+(21), B-(20), GND(24), 12V(23). D+ and D- connections also shown.
SPM1-100-AC: Terminals Voltage+(1), Voltage-(2), RS485-(3), RS485+(4), Power↓(5), Power+(6). D+ and D- connections also shown.
Pro MOD2: Terminals A+(10), B-(11), D+, D-. Further terminals 12-21 are present.
Pro 380 MOD: Terminals A+(22), B-(23), D+, D-.

Commander 2

EM112: Terminals T(3), A-(5), B+(4), GND(6)
EM340: Terminals T(7), A-(9), B+(8), GND(10)
EM330: Terminals T(10), A-(12), B+(11), GND(13)
N1 CT: Terminals A+(21), B-(20), GND(24), 12V(23). D+ and D- connections also shown.
SPM1-100-AC: Terminals Voltage+(1), Voltage-(2), RS485-(3), RS485+(4), Power↓(5), Power+(6). D+ and D- connections also shown.
Pro MOD2: Terminals A+(10), B-(11), D+, D-. Further terminals 12-21 are present.
Pro 380 MOD: Terminals A+(22), B-(23), D+, D-.

Copper SB

EM112: Terminals T(3), A-(5), B+(4), GND(6)
EM340: Terminals T(7), A-(9), B+(8), GND(10)
EM330: Terminals T(10), A-(12), B+(11), GND(13)
N1 CT: Terminals A+(21), B-(20), GND(24), 12V(23). D+ and D- connections also shown.
SPM1-100-AC: Terminals Voltage+(1), Voltage-(2), RS485-(3), RS485+(4), Power↓(5), Power+(6). D+ and D- connections also shown.
Pro MOD2: Terminals A+(10), B-(11), D+, D-. Further terminals 12-21 are present.
Pro 380 MOD: Terminals A+(22), B-(23), D+, D-.

Configuration

Follow the steps provided in the document to configure the Power Boost and Eco-Smart functionalities.

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