Hager ADA916D RCBO 1P+N 16A B-Curve 30mA Type A

The Hager ADA916D is a high-performance RCBO designed to provide comprehensive electrical circuit protection in a compact, single-module format. By integrating both residual current protection and overcurrent protection into one device, it offers a space-saving solution for modern distribution boards. This 1P+N device is engineered to detect leakage currents and prevent damage from short circuits and overloads, ensuring the safety of both electrical systems and users in residential and commercial environments.

Advantages

The primary benefit of the Hager ADA916D is its dual-functionality, which simplifies installation and reduces the space required in the consumer unit compared to using separate MCB and RCD components. Its Type A sensitivity ensures reliable detection of both alternating and pulsating direct residual currents, providing a higher level of safety for modern electronic equipment. The B-curve tripping characteristic is optimized for standard domestic and light commercial applications, offering a balanced response to load surges while maintaining strict protection against faults.

Suitable for

• Residential electrical distribution boards
• Light commercial installations
• Protection of circuits with electronic components
• General lighting and socket outlet circuits

This device may not be suitable for industrial applications requiring high inrush current handling, such as large motor starting circuits, where a C or D curve characteristic would be necessary. It is also not intended for use in DC-only systems or environments where specific Type B RCD protection is mandated by local electrical regulations.

Key specifications

• Rated current: 16A
• Tripping characteristic: B-curve
• Sensitivity: 30mA
• Residual current type: Type A
• Configuration: 1P+N

Installation should be performed by a qualified electrician in accordance with local wiring regulations. The device is mounted onto a standard DIN rail within a distribution enclosure. Ensure that the supply voltage and load requirements are compatible with the device ratings before connection. Once installed, the test button should be operated periodically to verify the mechanical integrity of the tripping mechanism.

What to consider before purchase

• Verify that the 16A rating matches the circuit load requirements
• Ensure the B-curve characteristic is appropriate for the connected appliances
• Confirm that Type A protection meets the specific safety requirements of your installation
• Check available space in the existing distribution board

For optimal performance and safety, perform a functional test using the integrated test button every six months. Do not exceed the rated current capacity of the device to prevent nuisance tripping or thermal damage.