DPX3 circuit breaker 250 HP 3P 80 A 70 kA 423127

DPX3 250 HP Overcurrent Breaker – Reliable Protection for Electrical Installations

The DPX3 250 HP is a three-pole overcurrent breaker designed to protect electrical installations against overloads and short circuits. With a rated continuous current of 80A and a high short-circuit breaking capacity of 70kA at 400V, it is an ideal solution for both commercial and industrial applications. The fixed-mount design ensures stability and long-term reliability.

Functionality and Applications

This overcurrent breaker is widely used in public buildings, industrial facilities, and installations requiring high reliability. Thanks to the adjustable settings for the overload trip (63-80A) and short-circuit trip (400-800A), it can be precisely tuned to the specific requirements of the protected circuit. Two changeover auxiliary contacts enhance functionality, enabling integration with control and signaling systems.

• Overload Protection: Prevents damage to cables and equipment caused by excessive current draw.
• Short-Circuit Protection: Rapidly disconnects the circuit during a short-circuit event, minimizing fire risk and equipment damage.
• Adjustable Trip Characteristics: Allows customization of breaker parameters to match the specific needs of the protected installation.
• Status Indication: A trip indicator alerts users when protection has activated, simplifying fault localization.
• Mounting: Designed for DIN rail mounting or direct wall mounting (requires appropriate accessories).

Construction and Key Features

The DPX3 250 HP features a robust construction and high manufacturing quality. The IP30 enclosure provides protection against accidental contact and ingress of solid objects. Main terminal connections use bolted connections to ensure secure and durable electrical contact. The device is rated for nominal voltages from 230V to 690V AC and frequencies of 50–60Hz. Optional motorized operation can be added to extend functionality, enabling remote control. The device does not include integrated earth fault protection; additional protective measures must be implemented in installations requiring such protection.