Fusebox RTA104030C 40A C-Curve Type A RCBO 30mA 10kA 1 Module

This is the FuseBox RTA104030C 40A Type A C Curve RCBO – 30mA, 10kA Protection available at SparksDirect.co.uk for the best price.

The FuseBox RTA104030C is a 40A RCBO (Residual Current Breaker with Over-Current protection) designed for modern consumer units and distribution boards. It combines two essential electrical protections in one compact device: over-current protection (like a miniature circuit breaker) to guard circuits from overloads and short circuits, and residual current protection (like an RCD) to detect dangerous leakage currents that could cause electric shock or fire.

With a 30mA earth-leakage trip threshold and a 10kA breaking capacity, the RTA104030C meets current electrical safety standards for residential, commercial, and light industrial systems. Its Type A sensitivity adds enhanced detection for AC and pulsating DC leakage currents often found in modern electronic equipment, making it a versatile and reliable protection device.

Compact, DIN-rail mountable on a standard 35mm rail, and compliant with IEC and BS EN safety standards, the RTA104030C is suited to installations where robust safety and regulatory compliance are required.

Features and Benefits

• Dual protection in one module — integrates overload/short-circuit and residual current protection.
• 40A current rating — ideal for higher-load circuits requiring robust protection.
• 30mA earth-leakage trip — enhances personal safety and reduces fire risk.
• 10kA breaking capacity — capable of interrupting significant fault currents.
• Type A residual current detection — detects AC + pulsating DC leakage currents from modern electronic loads.
• C Curve tripping — suited for circuits with moderate inrush currents (e.g., small motors, lighting).
• Compact single-module design — saves space in consumer units or board layouts.
• Easy DIN-rail installation — quick, standard mounting in distribution boards.

Technical Specifications

• Rated current: 40A
• Residual operating current: 30mA
• Rated breaking capacity: 10 000A (10kA)
• Tripping characteristic: C Curve (5 – 10 x In)
• Residual current type: Type A (AC + pulsating DC)
• Number of poles: 1P + Neutral (switched neutral)
• Rated voltage: 230V AC, 50/60 Hz
• Mounting: 35mm DIN rail
• Protection degree: IP20 (indoor use)
• Maximum terminal capacity: 1–16mm² line / 1–10mm² neutral
• Rated impulse withstand voltage: 4kV

Three Reasons Customers Recommend This

1. Robust overall protection: Users value that one device guards against both overloads and earth leakage, simplifying consumer unit design.
2. High fault capacity: The 10kA breaking rating gives confidence in installations with substantial fault current potential.
3. Fit for modern electronic loads: Type A sensitivity handles leakage signatures from devices like LED drivers and small electronics better than older Type AC devices.

Who needs this?

• Electricians and electrical contractors who are protecting circuits with higher current demands in consumer units.
• Homeowners and designers specifying circuit protection for fixed appliances (e.g., ovens, showers, HVAC), ring mains, or larger power circuits.
• Facility and maintenance managers ensuring compliance with wiring regulations and safety standards in commercial or light industrial settings.
• Anyone upgrading older distribution boards to include modern RCD and MCB combined protection, helping to reduce electrical risks.

Who can Install this?

Installation should be performed by a qualified electrician or competent installer familiar with consumer units and circuit protection devices. Because of the safety implications and regulatory requirements, professional installation helps ensure compliance with local wiring regulations and reduces the risk of incorrect connection or inadequate protection.

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