Engineering Excellence: Features That Define Reliability
The DNH40 Series stands out due to its meticulous design, incorporating innovative features focused on safety and ease of use:
1. Dual Spring Energy Storage Mechanism: Speed Independent of Operator
Safety and speed are paramount during critical connection or disconnection. The DNH40 utilizes a sophisticated Dual Spring Energy Storage Mechanism that ensures the switching speed is entirely independent of the operating handle speed.
Rapid Switching: The mechanism instantaneously releases stored spring energy once the operating handle reaches a set position.
Guaranteed Isolation: This rapid “make and break” action drastically reduces arc time and minimizes the risk of electrical faults, ensuring the reliability and long-term safety of the electrical connections.
2. Truly Modular Design for Maximum Installation Flexibility
System integration demands adaptability. The Modular Design of the DNH40 series offers unparalleled customization for your specific cabinet requirements:
Flexible Pole Configuration: Easily assemble the exact number of poles needed (2-Pole, 3-Pole, or 4-Pole).
Adaptable Mechanism Positioning: The operating handle mechanism can be flexibly positioned at either the left end, the right end, or in the center of the unit. This eliminates common installation headaches and satisfies various panel layout designs. (Refer to diagrams for AC 3-Pole, DC 2-Pole, AC 4-Pole, and DC 4-Pole configurations.)
3. Designed for Resilience: Suitable for Severe Conditions
Superior quality means guaranteed performance, even in the harshest environments. The DNH40 series has successfully passed rigorous environmental testing, proving its industrial-grade durability:
144-hour Extreme Salt Spray Test: Proof of exceptional Salt Spray Resistance (Tested at $95\%$ Relative Humidity and $6\%$ Sodium Chloride Concentration).
90-Minute Vibration Test: Guarantees structural integrity and reliable operation under constant mechanical stress (Vibration Resistance).
High Humidity Resistance: Certified for operational excellence in humid conditions.
4. Multi-Angle Adjustable Mounting Feet
Installation shouldn’t be constrained by fixed designs. The adjustable mounting feet allow engineers to select between horizontal, vertical mounting, and various fixed installation positions. This adaptability is key for overcoming space limitations in tight cabinets and complex application scenarios.
