ABB FH204AC-25/0.03 Circuit Breaker, 25A, 4-Pole, 400V

ABB FH204AC-25/0.03 Circuit Breaker is a robust four-pole protection device designed for industrial electrical service, maintenance, and replacement projects. Part of ABB's FH200 family, this 25 A, 4-pole unit is built to deliver dependable overcurrent protection in 400 V systems.

Key features and benefits

• 4-pole configuration: isolates all conductors in three-phase systems with neutral, ensuring a complete and safe disconnect during faults.
• 25 A rating: provides precise overcurrent protection for branch circuits and control feeders, helping prevent damage to motors, sensors, and equipment.
• 400 V compatibility: ideal for standard industrial distribution and motor control circuits in 3-phase networks common in manufacturing and facilities management.
• FH200 series compatibility: designed to fit in panels and enclosures built for FH200 family devices, offering a straightforward replacement path with consistent mounting and terminal layouts.
• Reliable ABB build: engineered for demanding environments, with clear labeling and dependable trip performance technicians trust during maintenance windows.

Why this part matters

• Use it to replace a failed MCCB or to upgrade a panel’s protection profile without changing the entire distribution board.
• For new installations, specify the FH204AC-25/0.03 to ensure you have the correct 4-pole, 25 A, 400 V protection device that matches ABB’s design standards.
• Accurate compatibility rests on the part number and application fit—verify FH204AC-25/0.03 against your equipment diagrams and the FH200 series documentation.

Practical tips for installation and use

• Always confirm panel compatibility by cross-checking the exact part number, as small variations in the FH200 family differ in mounting, terminals, and trip characteristics.
• Have your installation manual on hand during replacement to align busbar connections and torque specifications, and to ensure proper isolation before service.
• Keep a spare FH204AC-25/0.03 in stock for rapid maintenance and minimal downtime on critical lines.

Ideal for:

• Industrial facilities, manufacturing lines, and processing plants requiring reliable 3-phase protection.
• Maintenance teams performing routine service, panel refurbishments, and equipment upgrades.
• Electrical contractors sourcing standardized, repeatable protection devices compatible with existing FH200-based installations.