Lewden BRCBO-B16/30/1HP 16A B Curve 30mA Type B-HP Heat Pump RCBO 6kA

Enhanced Type B RCBO Protection for Heat Pump Installations

The Lewden BRCBO-B16/30/1HP is a specialist 16A B Curve Type B-HP RCBO designed for heat pump installations requiring enhanced residual-current protection. Combining 30mA RCD protection with overload and short-circuit protection in one compact device, it provides a space-saving solution for compatible heat pump circuits.

Part of Lewden's specialist B-HP Heat Pump RCBO range, this 16A model is designed to accommodate the higher-frequency residual currents that can occur with modern inverter-driven heat pump technology. Its compact 18mm single-module design also removes the need for the separate MCB required when using a Type B RCCB.

Key Features

• Lewden B-HP Heat Pump RCBO
• Product code BRCBO-B16/30/1HP
• 16A rated current
• B Curve overcurrent characteristic
• Enhanced Type B / Type B-HP residual-current protection
• 30mA residual-current rating
• 6kA short-circuit breaking capacity
• Purpose-designed for heat pump applications
• Designed for higher-frequency residual currents
• Operational at frequencies of 20kHz and above
• Combines RCD and overcurrent protection
• Bi-directional operation
• 1 pole + switched neutral
• Compact 1-module construction
• Only 18mm wide
• DIN rail mounting
• Compatible with suitable Lewden consumer units
• Certified to BS EN/IEC 61009-1
• Certified to BS EN/IEC 62423
• Operating temperature from -25°C to +40°C

Designed Specifically for Heat Pump Circuits

Modern heat pumps frequently incorporate inverter technology and electronic power-control systems. These components can produce residual-current waveforms at frequencies considerably higher than the normal mains frequency.

Many heat pump manufacturers consequently specify Type F or Type B residual-current protection, while some require an enhanced Type B device capable of catering for higher-frequency leakage currents.

The Lewden B-HP range has been developed specifically for these applications, providing a dedicated protective solution where the heat pump manufacturer's requirements call for its enhanced Type B characteristics.

Enhanced Type B-HP Residual-Current Protection

The BRCBO-B16/30/1HP provides Lewden's specialist Type B-HP residual-current protection.

Some heat pump manufacturers require an enhanced Type B RCD capable of catering for frequencies up to 20kHz, with a minimum trigger point of 150mA above 1kHz. Lewden specifies its B-HP RCBO technology as operational at frequencies of 20kHz and above.

This enhanced high-frequency capability makes the device particularly relevant for heat pumps where conventional residual-current protection does not meet the equipment manufacturer's specified requirements.

16A B Curve Overcurrent Protection

This variant has a 16A rated current with a B Curve overcurrent characteristic, making it suitable for correctly designed heat pump circuits requiring these particular characteristics.

The two "B" designations should not be confused. B Curve describes the overcurrent tripping characteristic, whereas Type B-HP relates to the RCBO's residual-current detection characteristics.

The protective device should always be selected according to the heat pump manufacturer's requirements, circuit design, cable characteristics and applicable wiring regulations.

30mA Residual-Current Protection

The BRCBO-B16/30/1HP has a 30mA rated residual operating current, combining additional residual-current protection with Lewden's enhanced B-HP characteristics.

This makes it a compact solution where both 16A overcurrent protection and 30mA Type B-HP residual-current protection are required from the same device.

RCD & Overcurrent Protection in One Device

As an RCBO, the BRCBO-B16/30/1HP combines:

• Residual-current protection
• Overload protection
• Short-circuit protection

This offers a significant installation advantage over a Type B RCCB, which provides residual-current protection but requires appropriate separate overcurrent protection.

Lewden's B-HP RCBO therefore eliminates the need for an additional MCB solely to provide the overcurrent protection required alongside an RCCB.

Compact 18mm Single-Module Design

One of the key advantages of the Lewden B-HP range is its exceptionally compact 1-module, 18mm construction.

A Type B RCCB combined with an appropriate MCB can occupy approximately three consumer-unit modules. The BRCBO-B16/30/1HP provides residual-current and overcurrent protection within just one 18mm module.

This makes it particularly useful for heat pump installations where available consumer-unit capacity is limited.

6kA Short-Circuit Breaking Capacity

The BRCBO-B16/30/1HP provides a 6kA short-circuit breaking capacity, alongside its overload and residual-current protection.

The integrated design provides the principal RCBO protective functions within one device, reducing the number of individual protective devices required for a correctly designed circuit.

Bi-Directional Operation

The Lewden B-HP RCBO range features bi-directional operation, providing greater flexibility within suitable electrical installations.

Combined with its enhanced Type B-HP characteristics, this makes the device well suited to modern electrical systems incorporating sophisticated electronic equipment.

1 Pole + Switched Neutral

The BRCBO-B16/30/1HP uses a 1 pole plus switched neutral configuration while retaining its compact single-module dimensions.

This provides switched-neutral functionality without requiring additional DIN rail space within the consumer unit.

Compatible with Lewden Consumer Units

Lewden B-HP RCBOs are designed for installation within a standard Lewden RCBO consumer unit.

They can also be installed as one of the High Integrity circuits within compatible Lewden:

• Dual RCCB consumer units
• Split Load consumer units
• Dual Tariff consumer units

This provides flexibility when installing a new dedicated heat pump circuit or incorporating heat pump protection into suitable existing Lewden distribution equipment.

Certified to Relevant Standards

The Lewden B-HP Heat Pump RCBO range is specified as certified to:

BS EN/IEC 61009-1 – covering residual-current operated circuit breakers with integral overcurrent protection.

BS EN/IEC 62423 – covering additional requirements associated with Type F and Type B residual-current operated circuit breakers.

The specified operating temperature range is -25°C to +40°C.

• Brand: Lewden
• Range: B-HP Heat Pump RCBO
• Product Code: BRCBO-B16/30/1HP
• Product Type: Heat Pump RCBO
• RCD Classification: Enhanced Type B / Type B-HP
• Rated Current: 16A
• Trip Curve: B Curve
• Rated Residual Current: 30mA
• Short-Circuit Breaking Capacity: 6kA
• Pole Configuration: 1 Pole + Switched Neutral
• Bi-Directional: Yes
• Module Width: 1 Module
• Width: 18mm
• Residual-Current Protection: Yes
• Overload Protection: Yes
• Short-Circuit Protection: Yes
• High-Frequency Operation: 20kHz and Above
• Mounting: DIN Rail
• Operating Temperature: -25°C to +40°C
• Standards: BS EN/IEC 61009-1 & BS EN/IEC 62423
• Primary Application: Heat Pump Circuit Protection
• Consumer Unit Compatibility: Suitable Lewden RCBO Consumer Units & Compatible High Integrity Ways

Suitable Applications

• Air Source Heat Pumps
• Ground Source Heat Pumps
• Inverter-Driven Heat Pumps
• Domestic Heat Pump Systems
• Commercial Heat Pump Systems
• Dedicated 16A Heat Pump Circuits
• Low-Carbon Heating Systems
• Renewable Heating Installations
• Residential Electrical Installations
• Commercial Electrical Installations
• Lewden Consumer Units
• High Integrity Consumer Unit Circuits
• Heat Pumps Requiring Enhanced Type B Protection

Why Choose the Lewden BRCBO-B16/30/1HP?

The Lewden BRCBO-B16/30/1HP provides a specialist protective solution for heat pump circuits requiring an enhanced Type B residual-current characteristic.

It combines 16A B Curve overcurrent protection, 30mA residual-current protection and a 6kA short-circuit breaking capacity in a single RCBO. The specialist Type B-HP characteristic is designed to accommodate the higher-frequency residual currents associated with certain modern heat pump systems.

Its 18mm single-module design is also a major practical advantage. Rather than using a Type B RCCB together with a separate MCB, installers can provide both residual-current and overcurrent protection from one compact protective device.

With bi-directional operation, 1 pole plus switched neutral configuration and compatibility with suitable Lewden consumer units, the BRCBO-B16/30/1HP provides a neat and space-efficient solution where its particular B-HP protection characteristics are specified by the heat pump manufacturer and electrical design.