3VA23404JQ420AA0 | MCCB 400 A, 4 Pole, 36 KA, O/L, S/C & E/F, Microprocessor Based Trip Unit ETU560 LSIG – Siemens

The 3VA23404JQ420AA0 is a high-performance Molded Case Circuit Breaker (MCCB) manufactured by Siemens, designed for reliable and efficient electrical protection in industrial and commercial applications. This MCCB is rated for a current of 400 A and features a 4-pole configuration, making it suitable for three-phase systems with neutral protection.

Equipped with a 36 kA breaking capacity, this circuit breaker ensures robust protection against short circuits and overloads. It incorporates advanced protection features, including Overload (O/L), Short Circuit (S/C), and Earth Fault (E/F) protection, ensuring comprehensive safety for electrical systems.

The Microprocessor-Based Trip Unit ETU560 LSIG provides precise and adjustable protection settings, allowing for customization based on specific application requirements. The LSIG functionality includes:

• L – Long-time protection for overloads
• S – Short-time protection for short circuits
• I – Instantaneous protection for high-level faults
• G – Ground fault protection for earth leakage

This MCCB is designed for easy installation and maintenance, with a compact and durable construction that ensures long-term reliability. It is ideal for use in distribution boards, motor control centers, and other critical electrical systems where advanced protection and precise control are required.

Key Features:

• Rated Current: 400 A
• Number of Poles: 4
• Breaking Capacity: 36 kA
• Protection Functions: Overload, Short Circuit, and Earth Fault
• Trip Unit: ETU560 LSIG (Microprocessor-Based)
• Brand: Siemens

The 3VA23404JQ420AA0 is a reliable and versatile solution for modern electrical systems, offering advanced protection, precise control, and exceptional performance.