FuseBox 40A 30mA Type A B Curve 6kA RCBO | RTA064030B

40A Single Module Type A RCBO for FuseBox Consumer Units

The FuseBox RTA064030B is a 40A 30mA Type A B Curve RCBO designed to provide combined overcurrent and residual current protection for individual circuits within compatible FuseBox consumer units.

Combining the functions of an MCB and RCD within one compact device, the RTA064030B protects against overloads, short circuits and residual current / earth leakage faults.

With a 40A rated current, 30mA sensitivity, Type A residual current characteristics, B Curve tripping and 6kA breaking capacity, it provides comprehensive circuit protection while occupying just one module within the consumer unit. FuseBox lists the RTA064030B as the 40A model in its 6kA Type A RCBO range.

Features

• 40A Rated Current
• 30mA Residual Operating Current
• Type A Residual Current Protection
• B Curve Tripping Characteristic
• 6kA Short-Circuit Breaking Capacity
• Combined RCD & MCB Protection
• Protects Against Overloads
• Protects Against Short Circuits
• Protects Against Earth Leakage Faults
• Detects AC & Pulsating DC Residual Currents
• 1P + N Configuration
• Compact Single Module Design
• 230V AC Rated Voltage
• 50/60Hz Operation
• IP20 Protection
• 35mm DIN Rail Mounting
• 450mm Flying Neutral Cable
• 10,000 Mechanical Operations
• Designed for FuseBox Consumer Units
• Manufactured to IEC/EN 61009-1

Combined RCBO Circuit Protection

The RTA064030B combines residual current and overcurrent protection within a single device, providing protection against three key electrical fault conditions:

• Overloads
• Short Circuits
• Residual Current / Earth Leakage Faults

Using dedicated RCBOs on individual outgoing circuits can also improve circuit separation compared with arrangements where several circuits share one RCD.

Type A Residual Current Protection

The RTA064030B provides Type A residual current protection, designed to respond to both AC and pulsating DC residual currents.

FuseBox specifies the device's residual current characteristics as Type A for AC and pulsating DC up to 6mA, making it suitable for many modern electrical installations incorporating electronic loads.

40A B Curve Protection

With a rated current of 40A, the RTA064030B uses a B Curve tripping characteristic of 3–5 In.

The 40A rating makes this model suitable for appropriately designed circuits requiring this level of overcurrent protection. Selection should always be based on the connected load, cable size, installation method and applicable electrical installation requirements.

6kA Short-Circuit Breaking Capacity

The RTA064030B has a rated short-circuit breaking capacity of 6000A / 6kA.

This enables the RCBO to provide short-circuit protection within installations where a 6kA protective device is appropriate.

Compact Single Module Design

Despite combining residual current and overcurrent protection, the RTA064030B occupies only one module.

Its compact dimensions of approximately 114 x 17.8 x 69.6mm make efficient use of available consumer unit space, particularly where multiple circuits require individual RCBO protection.

The device mounts onto a standard 35mm DIN rail and incorporates a 450mm flying neutral cable.

Individual Circuit Protection

Using RCBOs allows individual outgoing circuits to receive their own residual current and overcurrent protection.

This arrangement can help minimise disruption when a fault occurs because the affected circuit has its own dedicated protective device rather than multiple circuits relying upon a shared RCD.

• Brand: FuseBox
• Product Code: RTA064030B
• Product Type: RCBO
• Rated Current: 40A
• Rated Residual Operating Current: 30mA / 0.03A
• RCD Type: Type A
• Residual Current Characteristics: AC & Pulsating DC up to 6mA
• Tripping Characteristic: B Curve, 3–5 In
• Rated Breaking Capacity: 6000A / 6kA
• Pole Configuration: 1P + N
• Rated Voltage: 230V AC
• Frequency: 50/60Hz
• IP Rating: IP20
• Number of Modules: 1
• Mounting: 35mm DIN Rail
• Maximum Incoming Terminal Capacity: 1–16mm²
• Maximum Outgoing Terminal Capacity: 1–10mm²
• Incoming Recommended Tightening Torque: 2.5Nm
• Outgoing Recommended Tightening Torque: 1.2Nm
• Flying Neutral Cable Length: 450mm
• Mechanical Endurance: 10,000 Operations
• Material: PA6 / Nylon 6
• Weight: 0.2kg
• Bi-Directional: No
  

Suitable Applications

• FuseBox Consumer Units
• Domestic Electrical Installations
• Appropriate 40A Final Circuits
• Residential Properties
• New-Build Electrical Installations
• Consumer Unit Replacements
• Consumer Unit Upgrades
• Individual Circuit Protection
• Appropriate Heating Loads
• Appropriate Light Commercial Installations
• Electrical Distribution Upgrades

Why Choose the FuseBox RTA064030B?

The FuseBox RTA064030B combines overload, short-circuit and 30mA residual current protection within one compact protective device.

Its combination of a 40A rating, B Curve characteristic, Type A residual protection and 6kA breaking capacity makes it a practical solution for appropriately designed circuits within FuseBox consumer units.

The single-module DIN rail design also makes efficient use of available consumer unit space while providing dedicated RCBO protection to the connected circuit.