Lewden HPPO-05MG-1 PRO65 5 Way IP65 Heat Pump Consumer Unit with 100A Type B RCD, B6 & B20 RCBOs and SPD

IP65 Heat Pump Consumer Unit with Type B RCD Protection

The Lewden HPPO-05MG-1 is a robust PRO65 5 way consumer unit purpose-designed for air source heat pump (ASHP) installations requiring Type B residual-current protection. Supplied pre-configured with a 100A main switch, 100A Type B RCD, B6 and B20 Type A RCBOs and a Type 2 Surge Protection Device, it provides a comprehensive dedicated distribution solution for modern heat pump systems.

Unlike Lewden's indoor PRO heat pump consumer units, the HPPO-05MG-1 uses a durable IP65 die-cast aluminium enclosure, making it suitable for indoor or outdoor applications where increased protection against dust and water ingress is required.

Key Features

• Lewden PRO65 heat pump consumer unit
• Product code HPPO-05MG-1
• Designed for air source heat pump installations
• 5 usable ways
• 10-module enclosure
• IP65 ingress protection
• Robust die-cast aluminium enclosure
• Suitable for indoor and outdoor applications
• 100A rated current
• 230V single-phase
• 100A main switch / isolator
• 100A Type B RCD included
• 6A B Curve Type A RCBO included
• 20A B Curve 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 grommets
• Suitable for SWA cable termination
• Top-hinged door

100A Type B RCD Protection

A key feature of the HPPO-05MG-1 is its included 100A Type B RCD, making this model suitable for heat pump installations where the equipment manufacturer or electrical design specifically requires Type B residual-current protection.

Modern inverter-driven heat pumps contain sophisticated power electronics that can produce residual-current waveforms beyond those associated with conventional electrical loads. Type B protection is designed for applications where residual currents may include smooth DC and other waveforms within the device's specified operating characteristics.

The required RCD type should always be confirmed against the particular heat pump manufacturer's instructions rather than assuming every ASHP requires Type B protection.

B6 Type A RCBO for Heat Pump Controls

The HPPO-05MG-1 is supplied with a 6A B Curve Type A RCBO, intended for the ASHP control circuit.

As an RCBO, this device provides both residual-current and overcurrent protection for its individual final circuit, giving the heat pump controls dedicated circuit protection within the consumer unit.

B20 Type A RCBO for Immersion Heater Circuit

A 20A B Curve Type A RCBO is also supplied for an associated immersion heater final circuit.

Together, the B6 and B20 RCBOs provide a practical pre-populated arrangement for common associated heat pump circuits while leaving additional ways available for expansion where required.

Built-In Type 2 Surge Protection

The Lewden HPPO-05MG-1 incorporates a Type 2 Surge Protection Device (SPD) to help protect the installation and connected equipment from transient overvoltages.

This is particularly valuable for modern heat pump systems containing electronic control equipment, inverter technology and other sensitive components.

Integrating the SPD within the consumer unit provides a neat, centralised protection solution without requiring a separate surge-protection enclosure.

IP65 Die-Cast Aluminium Enclosure

One of the major advantages of the PRO65 HPPO-05MG-1 is its durable IP65 die-cast aluminium enclosure.

The IP65 rating provides a high degree of protection against dust and water ingress, making the consumer unit suitable for appropriately installed external applications as well as indoor locations.

This makes it particularly useful where the dedicated heat pump distribution equipment needs to be positioned in a more demanding environment than a standard indoor consumer unit can accommodate.

100A Main Switch

The consumer unit incorporates a 100A main switch / isolator, providing convenient isolation of the complete dedicated heat pump distribution arrangement.

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

Five Usable Ways

The HPPO-05MG-1 provides 5 usable ways, allowing the supplied protective devices to be combined with additional heat pump-related circuits where required.

Lewden identifies spare ways as suitable for additional circuits such as integral heat pump heaters, subject to the requirements of the connected equipment and electrical design.

This makes the unit more flexible than a tightly populated dedicated enclosure with no room for future expansion.

Installer-Friendly Cable Entry

The enclosure incorporates round knockouts designed for straightforward cable entry and professional termination.

They can accommodate:

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

This is especially useful for an IP65 heat pump consumer unit, where correctly selected cable-entry accessories are important for maintaining the required level of environmental protection.

Compact PRO65 Construction

Despite its robust metal construction and comprehensive protective-device configuration, the HPPO-05MG-1 maintains relatively compact dimensions of approximately 264mm high x 240mm wide x 105mm deep.

The enclosure provides 10 modules and 5 usable ways, with a top-hinged door for access.

• Brand: Lewden
• Range: PRO65
• Product Code: HPPO-05MG-1
• Product Type: Heat Pump Consumer Unit
• Primary Application: Air Source Heat Pump Installations
• Rated Operating Voltage: 230V
• Phase: Single Phase
• Rated Current: 100A
• Number of Usable Ways: 5
• Number of Modules: 10
• IP Rating: IP65
• Enclosure Material: Die-Cast Aluminium
• Incoming Device: 100A Main Switch / Isolator
• RCD: 100A Type B RCD
• 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
• Indoor/Outdoor Use: Yes, subject to correct installation and maintaining the IP rating
• Guarantee: 1 Year

The exact HPPO-05MG-1 configuration is independently listed with the 100A Type B RCD, B6 and B20 Type A RCBOs, Type 2 SPD, five usable ways and IP65 enclosure.

Suitable Applications

• Air Source Heat Pump Installations
• ASHP Electrical Distribution
• Inverter-Driven Heat Pumps
• Heat Pumps Requiring Type B RCD Protection
• Outdoor Heat Pump Consumer Units
• External Electrical Installations
• Heat Pump Control Circuits
• Immersion Heater Circuits
• Integral Heat Pump Heater Circuits
• Domestic Heat Pump Installations
• Commercial Heat Pump Installations
• Renewable Heating Systems
• Low-Carbon Heating Installations
• Heat Pump Retrofit Projects

Why Choose the Lewden HPPO-05MG-1?

The Lewden HPPO-05MG-1 provides a particularly useful solution where a dedicated heat pump consumer unit needs both Type B residual-current protection and a robust IP65 enclosure.

Its pre-configured arrangement brings together a 100A Type B RCD, B6 and B20 Type A RCBOs, 100A main switch and Type 2 SPD, reducing the need to assemble the principal heat pump distribution components individually.

The IP65 die-cast aluminium PRO65 enclosure is a key advantage over standard indoor consumer units, providing increased environmental protection for correctly installed external or demanding indoor locations.

With 5 usable ways, spare capacity for additional heat pump circuits and installer-friendly round knockouts for glands, conduit and SWA termination, the HPPO-05MG-1 provides a robust and flexible distribution solution for compatible ASHP installations.