DPX3-I 1600 3P 800 A circuit breaker 422491

DPX³-I 1600 Disconnect Switch – Reliable Power Isolation

The DPX³-I 1600 is a three-pole device designed for safe and reliable disconnection of electrical circuits. Its construction enables breaking circuits under load, which is particularly critical during maintenance or servicing operations. The absence of built-in thermal or magnetic trip units means this device is intended primarily for circuit isolation rather than protection—making it commonly used in conjunction with other protective components.

Functionality and Applications

The DPX³-I 1600 is a versatile switch suitable for use as a main, safety, or maintenance disconnect. It performs reliably in both industrial installations and public or commercial buildings. Its robust design and high rated continuous current (800 A) ensure dependable operation even under demanding conditions. The ability to mount in distribution boards simplifies integration into existing electrical infrastructure.

It is ideal for applications requiring manual circuit disconnection without triggering protective devices—for example, during equipment replacement or measurement tasks. This minimizes the risk of equipment damage and ensures the safety of personnel working on the installation.

Specifications and Benefits

• High rated continuous current (800 A) – Enables use in high-power circuits.
• Three-pole construction – Ensures complete isolation of all phases.
• Lockable with seals – Enhances safety and prevents accidental re-energization.
• Screw terminals – Guarantee secure and durable conductor connections.
• Compliant with IEC/EN 60947-3 – Confirms adherence to European safety and quality standards.
• Universal application – Can serve as main, safety, or maintenance disconnect.
• Mountable in distribution boards – Facilitates seamless integration into existing electrical systems.
• Short-circuit withstand rating (10 kA) – Provides resilience against faults and protects the installation from damage.
• Rated operational power for AC-23, 400 V (320 kW) – Capable of handling demanding energy loads.

Additionally, optional motorized drive and undervoltage release allow customization to specific installation requirements. Three changeover auxiliary contacts enable remote monitoring of the switch status and integration with building automation systems.