Hager ADA516D Residual Current Circuit Breaker with Overcurrent Protection 2P 16A B 30mA Type A

The Hager ADA516D is a professional-grade residual current circuit breaker with overcurrent protection (RCBO), engineered to provide comprehensive safety for modern electrical systems. This 2-pole device integrates both circuit breaker and residual current protection functions into a single compact unit, designed for 240V AC installations. By monitoring for both overcurrent conditions and earth leakage, it effectively prevents electrical hazards, ensuring the integrity of your circuits and the safety of connected equipment.

Advantages

This RCBO offers a high level of operational reliability by combining two essential protective functions in one space-saving module. The Type A sensitivity ensures that the device can detect both alternating and pulsating direct current leakage, providing a broader range of protection compared to standard AC types. Its B-curve tripping characteristic is optimized for general applications, offering a balanced response to short circuits and overloads. The robust construction from Hager guarantees long-term durability and consistent performance in both residential and commercial environments.

Suitable for

• Residential electrical distribution boards
• Commercial office building circuits
• Protection of lighting and general-purpose socket outlets
• Systems requiring protection against earth leakage and overcurrent

This device may not be suitable for industrial applications involving high-power machinery with significant inrush currents, where a C or D tripping curve might be required. It is also not intended for use in DC-only electrical systems or environments with high-frequency interference that could cause nuisance tripping.

Key specifications

• Rated current: 16A
• Tripping characteristic: B-curve
• Residual current sensitivity: 30mA
• Type: A
• Number of poles: 2P
• Voltage rating: 240V AC

How to use

The Hager ADA516D should be installed by a qualified electrician in accordance with local electrical regulations. It is designed for mounting on a standard DIN rail within a distribution board. Ensure that the supply cables are correctly connected to the input terminals and that the load circuits are securely attached to the output terminals. After installation, the device should be tested using the integrated test button to verify its mechanical and electrical functionality.

What to consider before purchase

• Verify that the 16A rating matches the requirements of your circuit load.
• Ensure the 30mA sensitivity is appropriate for the intended level of human and equipment protection.
• Confirm that the B-curve characteristic is suitable for the connected appliances.
• Check the available space in your distribution board for a 2-pole modular device.

Usage recommendations: Regularly test the device using the test button at least every six months to ensure the internal mechanism remains functional and responsive to leakage currents.