Air circuit breaker LS AS-25E4-25A MAD0D0BX AC6 U0 AL. + AL.-S20-32E4-AHFS

Air circuit breakers LS – reliable protection and control of circuits

Air circuit breakers LS are advanced devices designed to protect electrical installations in low-voltage networks. Model AS-25E4-25A MAD0D0BX AC6 U0 AL. + AL.-S20-32E4-AHFS, thanks to its high rated parameters, performs well in demanding applications, providing effective protection against overloads and short circuits. This is a solution dedicated to both professional installers and end-users looking for reliable protection.

Design and application

The AS-25E4-25A circuit breaker is a withdrawable, 4-pole model designed to protect power distribution, control and disconnect electrical circuits, and protect motors. Its construction is based on solid materials and modern technologies, which translates into long life and trouble-free operation. The short-circuit breaking capacity of up to 85 kA (for Ue=400V) guarantees a quick response in emergency situations, minimizing the risk of damage to installations and equipment. Equipped with electronic protective trip units (types N, S, A and P), it offers a wide range of protective and measurement functions.

Advantages and benefits

• High short-circuit breaking capacity: 85 kA at Ue=400V provides effective protection against the effects of short circuits.
• Versatility: Can be used in various network configurations (800 V and 1150 V), including photovoltaic installations.
• Compact dimensions: Reduced size saves space in the switchgear cabinet. Dimensions are 527 x 430 x 375 mm with a weight of 101 kg.
• Electronic trip units: Types N, S, A and P provide precise and flexible adjustment of protection parameters.
• Durability: Mechanical durability of 30,000 operations and electrical durability of 10,000 operations guarantee long device life.
• Certificates: Compliance with strict standards, including marine certificates, confirms the high quality and reliability of the circuit breaker.
• LCD display: A clear display makes it easy to control and monitor the circuit breaker's operating parameters.
• Communication: Possibility of expansion with communication functions (option).

The AS-25E4-25A circuit breaker is an investment in the safety and reliability of the electrical installation. Its advanced functions and solid construction make it an ideal solution for both industrial, commercial facilities and residential buildings with high energy demand. The rated operating current AC-3 for Ue=400V is 2500 A, making it ideal for applications requiring a high rated current.