Lewden HPPI-R06W-A PRO 6 Way Heat Pump IP20 Consumer Unit with B6 & B20 RCBOs and Type 2 SPD

Dedicated 6 Way Consumer Unit for Air Source Heat Pump Installations

The Lewden HPPI-R06W-A is a purpose-configured PRO Series 6 way consumer unit designed for modern air source heat pump (ASHP) installations. Supplied with a 100A main switch, B6 and B20 Type A RCBOs and integrated Type 2 surge protection, it provides a compact, installer-friendly distribution solution for heat pump controls, immersion heater circuits and additional associated circuits.

The unit is designed with inverter-driven heat pump systems in mind and provides 6 usable ways within a compact 9-module enclosure. Spare ways allow additional heat pump circuits, such as integral heaters, to be added where required by the system design.

Key Features

• Lewden PRO Series heat pump consumer unit
• Product code HPPI-R06W-A
• Designed for air source heat pump installations
• 6 usable ways
• 9-module enclosure
• 100A main switch incomer
• Pre-fitted 6A B Curve Type A RCBO
• Pre-fitted 20A B Curve Type A RCBO
• Type 2 Surge Protection Device included
• B6 RCBO intended for ASHP controls
• B20 RCBO intended for immersion heater final circuit
• Spare ways for additional heat pump circuits
• Compact PRO Series enclosure
• 230V rated
• Top-hinged door
• Round cable-entry knockouts
• Suitable for cable glands, conduit and grommets
• Suitable for SWA cable termination
• Compact design for space-constrained installations

Pre-Configured for ASHP Installations

The HPPI-R06W-A has been configured specifically around the requirements of modern air source heat pump electrical installations.

Rather than starting with an empty consumer unit and selecting each component separately, this Lewden PRO unit includes the principal devices required for its intended configuration: a 100A main switch, 6A and 20A B Curve Type A RCBOs and Type 2 SPD.

This provides installers with a neat dedicated distribution point for the heat pump and its associated electrical circuits.

B6 Type A RCBO for ASHP Controls

A 6A B Curve Type A RCBO is supplied for the heat pump control circuit.

As an RCBO, it combines residual-current protection with overload and short-circuit protection for the individual final circuit, helping provide more targeted protection than arrangements where several circuits share a single RCD.

B20 Type A RCBO for Immersion Heater Circuit

The second supplied device is a 20A B Curve Type A RCBO, intended for an associated immersion heater final circuit.

Having separate RCBO protection for the controls and immersion heater helps create a well-organised dedicated heat pump installation while retaining spare ways for additional circuits.

Integrated Type 2 Surge Protection

The Lewden HPPI-R06W-A incorporates a Type 2 Surge Protection Device (SPD).

The SPD helps protect the installation and connected equipment against transient overvoltages. This is particularly useful with modern heat pump systems incorporating electronic controls, inverter technology and other sensitive electronic components.

Integrating the SPD into the consumer unit also avoids the need for a separate external surge-protection enclosure.

100A Main Switch

The incoming device is a 100A main switch / isolator, providing a convenient means of isolating the dedicated consumer unit.

Lewden's configuration uses dual screw terminals to provide secure termination of incoming tails.

Unlike the related HPPI-R04W-1 configuration, the HPPI-R06W-A does not include a Type B RCCB. Its supplied circuit protection consists of the B6 and B20 Type A RCBOs, together with the 100A main switch and Type 2 SPD. This distinction is important when selecting the correct Lewden heat pump consumer unit.

Six Usable Ways for Greater Flexibility

The HPPI-R06W-A provides 6 usable ways, offering greater expansion capacity than smaller dedicated heat pump consumer units.

The supplied B6 and B20 RCBOs provide protection for the intended control and immersion heater circuits, while the remaining capacity can accommodate additional circuits where required by the heat pump installation.

Lewden identifies integral heater circuits as one potential use for the spare ways.

Any additional protective devices should be selected according to the heat pump manufacturer's instructions and the electrical design.

Compact 9-Module PRO Series Enclosure

Despite offering six usable ways, the HPPI-R06W-A is housed within a compact 9-module PRO Series enclosure measuring approximately 268mm high x 208mm wide x 109mm deep.

This makes the unit particularly useful where a dedicated heat pump consumer unit is required but installation space is limited.

Installer-Friendly Cable Entry

Lewden equips the enclosure with round knockouts, giving installers practical options for different wiring methods.

The cable entries can accommodate:

• Cable glands
• Conduit
• Cable grommets
• SWA cable termination

This helps make the consumer unit adaptable to different heat pump installation layouts and cable-entry requirements.

Designed for Modern Inverter Heat Pumps

Lewden describes the HPPI-R06W-A as intended for ASHP installations with inverter-driven compressors, including equipment operating at high frequencies.

However, the exact RCD and circuit-protection requirements of the connected heat pump should always be checked against the heat pump manufacturer's instructions and the electrical system design.

Where a heat pump specifically requires Lewden's enhanced Type B-HP RCBO protection, an appropriate B-HP protective device or a pre-configured Lewden consumer unit incorporating one should be selected instead.

• Brand: Lewden
• Range: PRO Series
• Product Code: HPPI-R06W-A
• Product Type: Heat Pump Consumer Unit
• Primary Application: Air Source Heat Pump Installations
• Number of Usable Ways: 6
• Number of Modules: 9
• Incoming Device: 100A Main Switch / Isolator
• Current Rating: 100A
• Included RCBO 1: 6A B Curve Type A RCBO
• Included RCBO 2: 20A B Curve Type A RCBO
• Surge Protection: Yes
• SPD Type: Type 2
• Voltage Rating: 230V
• Door Type: Top Hinged
• Dimensions: 268mm (H) x 208mm (W) x 109mm (D)
• Cable Entry: Round Knockouts
• Mounting: Surface
• Guarantee: 1 Year

The core configuration and dimensions are confirmed by a current UK listing for the exact HPPI-R06W-A.

Suitable Applications

• Air Source Heat Pump Installations
• ASHP Electrical Supplies
• Inverter-Driven Heat Pump Systems
• Heat Pump Control Circuits
• Immersion Heater Circuits
• Integral Heat Pump Heater Circuits
• Domestic Heat Pump Installations
• Residential Low-Carbon Heating
• Renewable Heating Systems
• Dedicated Heat Pump Distribution
• Heat Pump Installations Requiring Type 2 SPD Protection

Why Choose the Lewden HPPI-R06W-A?

The Lewden HPPI-R06W-A provides a practical way to create a dedicated electrical distribution point for an air source heat pump without assembling the core consumer unit components individually.

It comes equipped with a 100A main switch, B6 and B20 Type A RCBOs and Type 2 SPD, providing dedicated protection for heat pump controls and an immersion heater circuit while retaining spare capacity for additional heat pump circuits.

Its 6 usable ways, compact 9-module PRO enclosure and flexible round cable entries make it particularly suitable for professional ASHP installations where space, expandability and straightforward installation are priorities.