Type A Residual Current Circuit Breaker

Ensure comprehensive personal and fire safety in today’s electronics-rich environments with the CDADA Type A Residual Current Circuit Breaker (RCCB), we can offer factory direct price. It goes beyond basic AC leakage detection—it reliably trips on both sinusoidal AC and pulsating DC residual currents generated by common devices like phone chargers, LED drivers, computers, and variable-speed appliances.

Available in 2P (1+N) and 4P (3+N) configurations with rated currents from 16A to 100A and sensitivities of 10mA, 30mA, 100mA, or 300mA, it’s engineered for modern residential, office, and light commercial installations.

With a 6kA conditional short-circuit rating, IP20 protection, and dual terminal options (lug/pin), the CDADA Type A RCCB combines safety, reliability, and installer-friendly design—all backed by global compliance.

Key Specifications

Why Choose CDADA Type A RCCB?

★  Detects Real-World Leakage Threats

Unlike basic Type AC devices, CDADA Type A responds to both AC and pulsating DC—essential for safety in homes and offices filled with switch-mode power supplies, inverters, and EV chargers.

★ No Nuisance Tripping

Advanced filtering ensures immunity to voltage spikes and harmless transient currents, while still guaranteeing <0.1s trip time at rated sensitivity.

★ Clear Visual Status

The red/green contact position indicator allows instant verification of breaker state—critical during maintenance or emergency checks.

★ Flexible Wiring & High Compatibility

Supports lug or pin terminals and 35mm² cables, making it compatible with busbars and flexible conductors in modern panels.

★ Two additional rivet

increased robustness of the casing in conductor connection area due to two additional rivets and solid faceplate

★ DIN rail clamp

Quick installation and additional reliability of snapping on to the DIN rail due to the latch with double locking

★ Global Compliance, Local Value

Certified to IEC/EN 61008-1, suitable for EU, Middle East, Africa, and Asia markets—with competitive pricing from a reliable Chinese manufacturer.

Typical Applications

Modern Homes: Socket circuits with TVs, laptops, kitchen electronics

Offices: IT rooms, workstation power strips

Retail: POS systems, digital signage, LED lighting

EV Charging Points: Basic protection layer (paired with overcurrent device)

Renewable Installations: Solar inverters generating pulsed DC leakage

FAQ

Q1: What’s the difference between Type A and Type AC RCDs?

A1: Type AC only detects smooth sinusoidal AC leakage. Type A detects both AC and pulsating DC (e.g., from rectifiers in phone chargers, LED drivers, or washing machines). For any circuit with electronics, Type A is required by modern electrical codes.

Q2: Is a 30mA Type A RCD sufficient for personal protection?

A2: Yes. 30mA is the standard threshold for life-saving shock protection per IEC. CDADA’s Type A ensures it works even if the fault includes DC components—making it safer than Type AC in real-world scenarios.

Q3: Does this RCCB provide overload or short-circuit protection?

A3: No. This is a pure RCCB (no overcurrent protection). It must be used in series with an MCB or fuse to protect against overloads and short circuits.

Q4: Can I use it in a TT earthing system?

A4: Yes—Type A Residual Current Circuit Breakers are commonly used in TT systems, especially with 100mA or 300mA for fire protection at the incomer, and 30mA for final circuits.

Q5: Why choose CDADA over other Type A brands?

A5: CDADA offers:

● True IEC 61008-1 compliance with test reports

● Dual terminal options (lug/pin) for flexible wiring

● Color-coded contact status (red/green)

● Surge-immune design—no false trips

● OEM-ready: bulk pricing, English documentation, fast sampling