OXB400E3S3Q54B ENCLOSED AUTOMATIC TRANSFER SWITCH

The OXB400E3S3Q54B represents a high-performance enclosed automatic transfer switch engineered for reliable power continuity in critical systems. Built to meet and exceed IEC 60947-6-1 standards, this device integrates both the switch mechanism and controller into a singular unit, facilitating seamless operation and simplifying installation. The enclosure, manufactured from robust steel sheet, offers an IP54 degree of protection against dust and water ingress as per IEC 60529, ensuring suitability for demanding industrial environments.

 

Featuring a four-pole configuration with switched simultaneous function on the fourth pole (positioned on both left and right sides), it supports bottom cable entry for streamlined connectivity. With rated operational currents of 400 A across AC-31B, AC-32B, and AC-33B categories between 200–415 V AC voltages — along with thermal current capabilities at up to 400 A — the OXB400E3S3Q54B handles diverse load scenarios effectively. Its electrical ratings include a rated impulse withstand voltage (Uimp) of 12 kV, insulation voltage (Ui) of 1000 V, and short-time withstand current capacity (Icw) of up to 25 kA rms for durations of 0.3 seconds.

 

The embedded Level 3 LCD controller provides advanced monitoring functions while enabling precise control over delayed transition switching operations. Additionally equipped with bolt-type terminals and direct-mounted handle operation for ease-of-use under field conditions, this unit ensures optimal functionality even in polluted environments with pollution degree classification ’3.’ Compact dimensions — measuring a width of 610 mm × height of 810 mm × depth/length of 300 mm — combined with its net weight of only approximately 59 kg enable efficient handling during integration or maintenance processes.

 

Suitable for energy-intensive applications such as industrial automation or infrastructure setups requiring consistent power source management across multiple circuits or facilities