Hager NDN132 Miniature Circuit Breaker 1P D 32A 10kA AC

The Hager NDN132 is a high-performance single-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. Designed for demanding environments, this device effectively safeguards against short circuits and overloads, ensuring the integrity of electrical distribution systems. With its D-type tripping characteristic, it is specifically calibrated to handle high inrush currents, making it a reliable choice for professional electrical installations.

Advantages

This miniature circuit breaker offers exceptional reliability and durability, meeting rigorous safety standards for industrial and commercial use. Its 10kA breaking capacity ensures that it can safely interrupt high fault currents, preventing damage to downstream equipment and wiring. The D-curve characteristic provides the necessary flexibility for circuits with high inductive loads, preventing nuisance tripping during normal operation while maintaining precise protection thresholds.

Suitable for

• Industrial machinery and motor circuits
• Commercial electrical distribution boards
• Systems with high inrush current requirements
• Protection of lighting circuits with high starting currents

When it may not be suitable

This circuit breaker is not intended for residential applications where standard B or C curve breakers are typically required for general household appliances. Using a D-curve breaker in circuits without significant inrush current may result in delayed protection during fault conditions.

Key specifications

• Number of poles: 1
• Tripping characteristic: D
• Rated current: 32A
• Breaking capacity: 10kA
• Voltage type: AC

How to use

The Hager NDN132 is designed for installation on a standard DIN rail within an electrical distribution board. It should be installed by a qualified electrician in accordance with local electrical regulations. Ensure that the supply is disconnected before mounting the device. Once snapped onto the rail, connect the incoming power supply to the top terminal and the outgoing load circuit to the bottom terminal, ensuring all connections are tightened to the manufacturer's specified torque settings.

What to consider before purchase

• Verify that the D-type tripping characteristic is appropriate for your specific load type
• Ensure the 32A rating matches the requirements of your circuit wiring
• Check that the 10kA breaking capacity is sufficient for the prospective short-circuit current at the installation point
• Confirm compatibility with your existing distribution board rail system

Usage recommendations

Regularly inspect the circuit breaker for signs of wear or thermal damage. It is recommended to perform periodic testing of the switching mechanism to ensure continued operational readiness. Do not exceed the rated current or voltage specifications during operation.