The manually operated OS series switch disconnectors from ABB provide optimum protection for the most demanding applications. The OS series switches currents from 20 A to 1250 A and at voltages up to 690 V AC. All OS switches have an integrated fuse chamber where fuses of different sizes can be used. For this purpose, ABB offers different versions for different backup standards. Thanks to its modular design, the mechanism and poles can be positioned according to the installation requirements. This enables a high degree of flexibility and efficiency in planning. In addition, the series has IEC and UL approvals. ABB offers a wide range of accessories for these switches, such as extension shafts, handles, auxiliary switches and terminal covers. The OS switches are an ideal solution for motor protection and can be used in numerous other industrial applications along with transformers.
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