Lewden HPPO-07MG-A PRO65 7 Way IP65 Heat Pump Consumer Unit with B6 & B20 RCBOs and Type 2 SPD

Robust IP65 Consumer Unit for Air Source Heat Pump Installations

The Lewden HPPO-07MG-A is a purpose-configured PRO65 7 way heat pump consumer unit designed for modern air source heat pump (ASHP) installations. Supplied with a 100A main switch, B6 and B20 Type A RCBOs and built-in Type 2 surge protection, it provides a practical dedicated distribution solution for heat pump controls, immersion heater circuits and additional associated loads.

With 7 usable ways, the HPPO-07MG-A offers generous capacity for expanding the heat pump installation, while its IP65 enclosure provides enhanced protection against dust and water ingress. The exact model is specified at 230V, single phase and 100A, with a compact 10-module format measuring 264 x 240 x 105mm.

Key Features

• Lewden PRO65 heat pump consumer unit
• Product code HPPO-07MG-A
• Designed for air source heat pump installations
• 7 usable ways
• 10-module enclosure
• IP65 ingress protection
• 100A rated current
• 230V single-phase operation
• 100A main switch / isolator
• B6 Type A RCBO included
• B20 Type A RCBO included
• 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
• Round cable-entry knockouts
• Suitable for cable glands, conduit and cable grommets
• Suitable for SWA cable termination
• Top-hinged door
• Compact 264 x 240 x 105mm enclosure
• 1-year guarantee

Pre-Configured for ASHP Installations

The HPPO-07MG-A brings the principal distribution components for a dedicated heat pump installation together within one enclosure.

It is supplied with a 100A main switch, plus 6A and 20A B Curve Type A RCBOs intended for the ASHP controls and immersion heater final circuits respectively. An integrated Type 2 SPD provides surge protection for the installation.

This pre-populated arrangement can reduce the amount of individual component selection required while still leaving spare ways available for additional circuits.

B6 Type A RCBO for Heat Pump Controls

A 6A B Curve Type A RCBO is pre-fitted for the ASHP control circuit.

The RCBO combines residual-current protection with overload and short-circuit protection for its individual circuit, providing a dedicated protective device for the heat pump controls rather than placing multiple final circuits behind one shared RCD.

B20 Type A RCBO for Immersion Heater

The consumer unit also includes a 20A B Curve Type A RCBO, specified for an associated immersion heater final circuit.

Together, the B6 and B20 devices provide a useful starting configuration for the associated circuits commonly required alongside an air source heat pump.

The final circuit arrangement and protective-device selection should always follow the requirements of the specific heat pump manufacturer and electrical system design.

Built-In Type 2 Surge Protection

A Type 2 Surge Protection Device (SPD) is incorporated into the HPPO-07MG-A to help protect connected electrical and electronic equipment against transient overvoltages.

Modern heat pumps can contain sophisticated electronic controls and inverter technology, making properly selected surge protection an important consideration within the overall electrical installation.

Integrating the SPD into the dedicated heat pump consumer unit creates a neat, centralised distribution and protection arrangement.

100A Main Switch

The HPPO-07MG-A incorporates a 100A main switch / isolator, providing a convenient means of isolating the dedicated heat pump consumer unit.

The incoming switch features dual screw terminals for secure termination of incoming tails.

Seven Usable Ways for Additional Circuits

With 7 usable ways, this PRO65 consumer unit provides useful flexibility for more involved heat pump installations.

Once the supplied B6 and B20 RCBOs and associated devices are accounted for, spare capacity is available for additional heat pump circuits. Lewden's product information identifies integral heater circuits as one potential use for these spare ways.

Any additional protective devices should be selected according to the connected load, cable design and heat pump manufacturer's requirements.

IP65 Protection for Demanding Locations

A major advantage of the HPPO-07MG-A over standard indoor heat pump consumer units is its IP65 protection rating.

The enclosure therefore offers enhanced resistance to dust and water ingress, making it a strong choice where the consumer unit needs greater environmental protection.

Correct installation and suitably rated cable glands and entry accessories are essential to maintaining the specified IP65 protection.

Compact 10-Module PRO65 Enclosure

The HPPO-07MG-A provides its 7 usable ways within a compact 10-module enclosure, helping minimise the wall space required for the dedicated heat pump distribution equipment.

The enclosure measures approximately:

264mm (H) x 240mm (W) x 105mm (D)

It also incorporates a top-hinged door for convenient access.

Flexible Cable Entry

The enclosure features round knockouts designed to simplify professional cable entry and termination. These are suitable for installations using:

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

This gives installers flexibility when integrating the consumer unit into different heat pump wiring arrangements.

Important Protection Consideration

Unlike the HPPO-05MG-1, which incorporates a Type B RCD, and the HPPO-07MG-AC16/AC25 variants, which incorporate specialist heat pump RCBOs, the HPPO-07MG-A is supplied with B6 and B20 Type A RCBOs and does not include a Type B RCD or B-HP RCBO. Current listings distinguish these models as separate configurations.

This distinction is important when specifying a consumer unit for an inverter-driven heat pump. The HPPO-07MG-A should only be selected where its protective-device arrangement satisfies the heat pump manufacturer's requirements and the electrical design.

• Brand: Lewden
• Range: PRO65
• Product Code: HPPO-07MG-A
• Product Type: Heat Pump Consumer Unit
• Primary Application: Air Source Heat Pump Installations
• Rated Operating Voltage: 230V
• Phase: Single Phase
• Rated Current: 100A
• Usable Ways: 7
• Number of Modules: 10
• IP Rating: IP65
• Incoming Device: 100A Main Switch / Isolator
• 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
• Dimensions: 264mm (H) x 240mm (W) x 105mm (D)
• Door Type: Top Hinged
• Cable Entry: Round Knockouts
• Guarantee: 1 Year

Suitable Applications

• Air Source Heat Pump Installations
• ASHP Electrical Distribution
• Dedicated Heat Pump Supplies
• Heat Pump Control Circuits
• Immersion Heater Circuits
• Integral Heat Pump Heater Circuits
• IP65 Heat Pump Installations
• Domestic Heat Pump Systems
• Residential Renewable Heating
• Commercial Heat Pump Installations
• Low-Carbon Heating Systems
• Heat Pump Retrofit Projects
• New-Build Heat Pump Installations

Why Choose the Lewden HPPO-07MG-A?

The Lewden HPPO-07MG-A offers a convenient way to create a dedicated electrical distribution point for a heat pump installation while providing significantly more environmental protection than a conventional indoor enclosure.

Its 100A main switch, B6 and B20 Type A RCBOs and Type 2 SPD are already incorporated, providing protection for the intended ASHP control and immersion heater circuits alongside surge protection for sensitive equipment.

With 7 usable ways, there is also capacity for additional heat pump-related circuits where required. Combined with its , the HPPO-07MG-A is a versatile choice for compatible ASHP installations where additional enclosure protection and future circuit capacity are priorities.