Residual-current and overcurrent circuit breaker 2P 10A B 30mA Type A EATON xPole Home HNB-B10/1N/003-A (MPN 195131)

EATON xPole Home HNB-B10/1N/003-A is a combined residual-current and overcurrent protective device designed for single-phase distribution circuits. The unit integrates earth-leakage detection with thermal-magnetic overcurrent protection in a compact 2-pole module. Rated for 10 A with a B tripping characteristic and 30 mA Type A residual current sensitivity, it provides discrimination between normal and hazardous leakage currents and responds to short circuits and overloads. The device is intended to fit standard DIN-rail distribution boards for residential and light-commercial installations where protection against electric shock and circuit faults is required.

Advantages

The combined RCCB+MCB design reduces the need for separate devices, saving space in the distribution board and simplifying wiring. Type A residual-current detection captures both AC and pulsating DC leakage, improving safety for modern electronic loads. The B characteristic ensures rapid tripping for low-magnitude short-circuit currents typical in household circuits while maintaining stable operation under inrush currents. The modular 2-pole format supports easy mounting on standard DIN rails and straightforward integration with existing distribution layouts.

Suitable for

• Residential single-phase circuits requiring earth-leakage protection and overcurrent protection
• Light-commercial electrical installations with compact distribution boards
• Circuits with electronic appliances that can produce pulsating DC leakage
• Replacement or retrofit in existing DIN-rail panels to consolidate protection devices

Key specifications

• Poles: 2-pole module for single-phase circuits
• Rated current: 10 A
• Tripping characteristic: B curve (thermal-magnetic)
• Residual current sensitivity: 30 mA, Type A (AC and pulsating DC detection)
• Protection functions: Earth-leakage detection, short-circuit and overload protection
• Mounting: Standard DIN-rail compatible

How to use

Install the device on a standard 35 mm DIN rail inside the distribution board in accordance with local wiring regulations. Connect the line and neutral conductors to the input and output terminals as indicated by the manufacturer’s markings, ensuring correct polarity for proper residual-current operation. Use suitable torque settings for terminal screws and apply protective insulation sleeves if required by installation standards. After wiring, test the residual-current function with an appropriate test procedure to confirm the 30 mA trip operation before placing the circuit into normal service.

Usage recommendations

Use this combined RCCB+MCB in circuits where both earth-leakage detection and overcurrent protection are required but panel space is limited. Periodically test residual-current operation and inspect terminals for secure connections. For circuits supplying equipment with high inrush currents, verify coordination with upstream and downstream protective devices to ensure selectivity.