NexBlue Zen Three Phase Current Sensor | CS3ANAUK3P | Dynamic Load Balancing

Description

The NexBlue Zen Three Phase Current Sensor is a compact DIN rail energy monitoring device designed to enable dynamic load balancing (DLB) and solar surplus EV charging with compatible NexBlue EV chargers. By measuring real time household consumption through CT clamps, it helps protect the main supply, make better use of available solar generation and keep EV charging running efficiently.

Ideal for properties without a smart meter, the Zen communicates locally using Nexus RF, WiFi, Bluetooth or Ethernet. Its low profile 27 mm wide housing fits neatly alongside other DIN rail equipment, while the integrated power supply removes the need for an external adapter.

3 Phase

Supply monitoring

85-264 V

AC power supply

3W

Rated power

DIN Rail

Quick installation

IP30

Indoor enclosure

3 Years

Manufacturer warranty

Safety and installation: This current sensor is intended for indoor use and must be installed by a competent, qualified electrician in accordance with BS 7671 and manufacturer instructions. Confirm supply arrangement, earthing system and charger compatibility before installation.

Compatibility note: The Zen is designed for use with compatible NexBlue EV chargers and supports TT, IT and TN installations from single phase to three phase. Check the exact charger model and firmware requirements before ordering.

Useful information: The included CT clamps provide direct current monitoring, while an optional Rogowski coil can extend measurement capability for larger installations. CT clamps should be fitted with the direction arrow pointing from the grid to the home.

Key Features

Dynamic Load Balancing

Monitors live household demand so a compatible NexBlue charger can adjust EV charging and help avoid overloading the main supply.

Solar Surplus Charging

Works with compatible NexBlue systems to prioritise available solar generation, helping reduce reliance on grid electricity for EV charging.

Reliable Local Communication

Connects using Nexus RF, WiFi, Bluetooth or Ethernet, with an external extendable antenna to improve signal penetration through walls.

No Smart Meter Required

A practical choice where a smart meter is unavailable or unsuitable, using CT clamp measurements for real-time energy data.

Fast DIN Rail Installation

The compact DIN rail housing and integrated power supply support a straightforward installation, with no external power adaptor required.

Future Ready Energy Monitoring

Provides communication provision for integration with solar PV and energy storage systems, supporting smarter home energy management.

Technical Specifications

General

Model

CS3ANAUK3P

Product type

Three phase current sensor / dynamic load balancing device

Colour

Black

Mounting

DIN rail

Dimensions

85.8 mm (H) x 27 mm (W) x 66.8 mm (D)

Weight

95 g

Electrical

Power supply

85-264 V AC, 50 Hz

Rated power

3 W

Voltage measurement range

85-264V, AC

Current measurement

CT clamps included, optional Rogowski coil up to 1500 A

Installation system

TT, IT or TN, single phase to three phase

Terminals

Grid, solar, RS-485, LAN, WiFi and power supply

Connectivity

Communication

Nexus RF, WiFi 2.4 GHz, Bluetooth BLE 4.2, Ethernet, RS-485

Antenna

External and extendable

Environment and Compliance

Ingress protection

IP30

Operating temperature

-25°C to +55°C

Relative humidity

0-90%

Overvoltage category

OVC II

Insulation class

Class II

Warranty

3 years

Specification note: Published NexBlue documentation shows differing CT clamp ratings for the Zen range, with some versions listed at 0-80 A / 16 mm² and others at 0-120 A / 25 mm². Confirm the rating applicable to the supplied hardware before installation.

Frequently Asked Questions

What does the NexBlue Zen current sensor do?

It measures household electricity use using CT clamps and sends that data to a compatible NexBlue EV charger, enabling dynamic load balancing and solar surplus charging.

Does it need a smart meter?

No. The Zen is particularly useful where a smart meter is not fitted or cannot be used, because it monitors consumption directly through its CT clamps.

Which NexBlue chargers is it compatible with?

It is designed for use with compatible NexBlue EV chargers. Always check the specific charger model, installation requirements and firmware guidance before purchase.

How is the Zen installed?

It mounts on a standard DIN rail and uses an integrated power supply, so no external power adaptor is required. Installation should be carried out by a qualified electrician.

Can it work without an internet connection?

Yes. The Zen supports local communication through Nexus RF, helping maintain dynamic load balancing even when a network connection is unavailable.

What is the warranty period?

The manufacturer lists a 3 year warranty for the NexBlue Zen current sensor.

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Room Dimensions

Length (in m):

Width (in m):

Height (in m):

Room Type

Living Room

Bedroom

Kitchen

Bathroom

Conservatory

Hallway

Glazing Type

Single Glazed

Double Glazed

Triple Glazed

External Walls

0 Wall

1 Wall

2 Walls

3 Walls

4 Walls

Insulation Level

Poor

Average

Good (New Build)

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Required Heating

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