Eaton PL6-D40/1 Miniature Circuit Breaker, 1-Pole, D-Curve, 40A, 6kA

The Eaton PL6-D40/1 is a professional-grade 1-pole miniature circuit breaker engineered to provide robust protection for electrical circuits. This device is specifically designed to handle demanding electrical environments, offering a 40A rated current and a 6kA breaking capacity. By utilizing a D-type tripping characteristic, it effectively manages high inrush currents, making it a reliable component for safeguarding electrical installations against overloads and short circuits.

Advantages

The primary advantage of this circuit breaker is its D-curve tripping characteristic, which allows it to tolerate high surge currents during the startup of inductive loads without nuisance tripping. Its compact 1-pole design ensures space efficiency within distribution boards, while the high-quality construction from Eaton guarantees long-term operational reliability and safety in various electrical systems. The device is built to meet rigorous standards, providing consistent performance in both commercial and industrial settings.

Suitable for

• Industrial machinery with high starting currents
• Large motors and transformers
• Commercial electrical distribution panels
• Systems with frequent inductive load switching

This circuit breaker may not be suitable for standard residential lighting or small appliance circuits where a B or C-curve characteristic is typically required to ensure faster tripping during low-current faults. It is also not intended for use in DC circuits unless specifically rated for such applications.

Key specifications

• Number of poles: 1
• Rated current: 40A
• Tripping characteristic: D-curve
• Breaking capacity: 6kA
• Mounting type: DIN rail

Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is designed to be snapped onto a standard DIN rail within a distribution enclosure. Ensure that the supply cables are properly stripped and securely tightened into the terminal clamps to prevent overheating. Always verify that the circuit breaker is compatible with the existing wiring and the total load of the circuit before finalizing the installation.

What to consider before purchase

• Verify that the D-curve characteristic is appropriate for your specific load type
• Ensure the 40A rating matches the requirements of your electrical circuit
• Check available space on the DIN rail within your distribution board
• Confirm that the 6kA breaking capacity meets the short-circuit current requirements of your installation site

For optimal safety and longevity, regularly inspect the terminal connections for tightness and ensure the distribution board remains free of dust and moisture. Do not attempt to bypass or modify the circuit breaker, as this compromises the safety of the entire electrical installation.