Description

The Power Distribution XT5S 400 TMA 400-4000 3p F F is designed for dependable protection in high-demand electrical networks. With a rated current of 400 A and a short-circuit breaking capacity of 70 kA at 240 V AC, it guarantees efficient and safe performance across industrial, commercial, and infrastructure systems. The Thermal-Magnetic (TMA) trip unit offers precise overload and short-circuit protection, ensuring long-term reliability and equipment safety. Built for efficiency and endurance, this breaker integrates seamlessly with low voltage electrical products, supporting stable power distribution and energy efficiency in modern installations.

Key Specifications

• Product Type: Moulded Case Circuit Breaker

• Rated Current (In): 400 A

• Rated Ultimate Short-Circuit Breaking Capacity (Icu): 70 kA (240 V AC) / 50 kA (380 V AC)

• Poles: 3P

• Trip Unit: Thermal-Magnetic (TMA 400-4000)

• Frame Size: XT5S 400

• Mounting: Fixed Type

• Frequency: 50/60 Hz

Highlights

• 70 kA breaking capacity ensures maximum protection under fault conditions

• TMA trip unit delivers accurate thermal and magnetic operation

• Compact and durable 3-pole design ideal for industrial environments

• Reliable protection with minimal maintenance needs

• Designed for long service life and high system efficiency

Typical Uses

• Industrial and commercial power distribution systems

• Main and sub-feeder protection circuits

• Automation and control panels

• Infrastructure, utilities, and process industry installations

Installation & Support

Delivered fully factory-tested and ready for integration.

• Simple panel installation with accessible wiring layout

• Supported by ARC Technologies’ engineering and maintenance teams