Eti-Polam EB2 400/3S Molded Case Circuit Breaker 3P 400A 50kA

The Eti-Polam EB2 400/3S is a high-performance 3-pole molded case circuit breaker engineered for robust electrical distribution in industrial and commercial settings. This device is designed to provide reliable protection for electrical circuits by effectively managing overloads and short circuits. With a rated current of 400A and a high breaking capacity of 50kA, it ensures the safety and integrity of electrical infrastructure under demanding operational conditions.

Advantages

The primary advantage of this molded case circuit breaker lies in its high breaking capacity, which allows it to safely interrupt significant fault currents, thereby preventing damage to downstream equipment. Its compact design facilitates efficient space utilization within electrical panels, while the 3-pole configuration ensures comprehensive protection for three-phase power systems. The device is built with high-quality materials to withstand the rigors of continuous industrial use, offering long-term reliability and consistent performance.

Suitable for

• Industrial electrical distribution systems
• Commercial building power management
• Protection of main distribution boards
• Heavy-duty machinery and equipment supply lines

When it may not be suitable

This circuit breaker is not intended for residential applications where lower current ratings are required. It is also not suitable for environments with extreme moisture or corrosive gases unless housed in an appropriately rated protective enclosure.

Key specifications

• Number of poles: 3
• Rated current: 400A
• Breaking capacity: 50kA
• Type: Molded case circuit breaker

How to use

Installation should be performed by a qualified electrician in accordance with local electrical codes. The device is mounted within a distribution panel or enclosure. Ensure that all cable connections are tightened to the specified torque settings to prevent overheating. Once installed, the breaker can be manually switched on or off using the front-facing toggle mechanism. In the event of a fault, the breaker will trip automatically to isolate the circuit.

What to consider before purchase

• Verify that the 400A rating matches your system load requirements
• Ensure the 50kA breaking capacity is sufficient for your installation's prospective short-circuit current
• Check the physical dimensions to ensure compatibility with your existing panel space
• Confirm that the 3-pole configuration is appropriate for your specific electrical network

Usage recommendations

Regular inspection of the terminal connections and the physical condition of the breaker is recommended to ensure continued safe operation. Do not attempt to modify the internal settings of the device.