DPX3 250 HP EL S1 4P 160 A 70 kA circuit breaker 423247

Compact DPX3 Circuit Breaker – Reliable Circuit Protection

The DPX3 250 HP EL S1 is a four-pole device designed to protect electrical installations against overloads and short circuits. With a rated continuous current of 160A and a high short-circuit breaking capacity of 70kA at 400V, it ensures reliable and safe operation under demanding conditions. This model, equipped with an S1-type overcurrent trip unit, provides precise and rapid response to circuit abnormalities.

Construction and Application

The DPX3 breaker features a fixed design intended for direct mounting. It is suitable for protecting circuits with a rated voltage ranging from 230V to 690V. Thanks to two auxiliary changeover contacts, it offers enhanced integration capabilities with control and signaling systems. Connections are made via bolted terminals, ensuring secure and durable wiring. Typical applications include industrial facilities, commercial construction, and infrastructure installations.

Key Features and Benefits

• High Short-Circuit Breaking Capacity (70kA): Ensures effective protection even under high fault currents, minimizing risk of damage and downtime.
• S1-Type Overcurrent Trip Unit: Enables precise setting of the trip threshold to match the specific requirements of the protected circuit. The S1 characteristic allows tolerance for short-term overloads, which is critical during the startup of electric motors.
• Wide Adjustable Overload Trip Range (64…160A): Provides flexibility in selecting the appropriate protection level for diverse applications.
• Four-Pole Design: Enables effective protection of three-phase power circuits.
• Trip Indicator: Allows quick identification of the breaker’s status and the cause of tripping – simplifies fault diagnosis.
• Optional Motorized Operating Mechanism: Enables remote control of the breaker, ideal for automated energy management systems.
• IP30 Protection Rating: Provides basic protection against access to live parts and environmental influences.

The DPX3 series is a proven product line from Legrand, highly regarded by installers for its reliability and ease of installation. With its robust construction and high technical specifications, it represents an optimal solution for demanding applications across industrial and construction sectors.