Product Description
AMS(550)-12 Indoor AC Metal-enclosed Switchgear is the latest generation of medium-placed metal-enclosed switchgear developed under the guidance of senior switchgear experts from China and Germany. The product reaches internationally advanced technical level, and its design and manufacturing fully comply with the requirements of GB, DL, IEC, DIN/VDE standards as well as standards from major industrialized countries worldwide.

Adopting a compact miniaturized design, AMS(550)-12 Indoor AC Metal-enclosed Switchgear can effectively save installation space, making it particularly suitable for customers with strict space constraints.

The AMS series indoor AC metal-enclosed switchgear features a complete range of specifications.

Rated voltage: 12kVRated current: 630A to 1250ARated short-circuit breaking current: 20kA to 31.5kARated peak withstand current: 50kA to 80kA

Full Technical Specifications
Rated voltage: 3.6/7.2/12kV
Rated frequency: 50Hz
Rated power frequency withstand voltage (1min): 42/48kV (circuit breaker gap)
Rated lightning impulse withstand voltage (peak value): 75/85kV (circuit breaker gap)
Rated current: 630/1250A
Rated short-time withstand current (4s): 20/25/31.5kA
Rated peak withstand current (peak value): 50/63/80kA
Main circuit resistance: ≤150μΩ+CT* (for rated current ≤630A); ≤100μΩ+CT* (for rated current ≤1250A)
Protection degree: IP4X for enclosure; IP2X with circuit breaker compartment door open