DIN Fuse links, OFAA Series

Continuous operation
The dual indicating DIN-type fuse links incorporate the top and center indication system and are available for most common sizes up to 630 A. The center indicator and the wide windows on the front cover of ABB switch fuses enhance the service speed and safety level.
The optional electronic fuse monitor enhances the protection and control of the circuitry. The fuse monitor provides status indications and control impulses in case of operated fuse link. The fuse helps protect three-phase motors for singlephase operation.

Reliable in extreme conditions
ABB fuse links guarantee maximum protection against all faults. The higher the voltage, the better the protection that can be achieved with the fuse link. The fused system provides, according to IEC 60947-4-1, type 2 coordination class up to 690 V, in which the equipment needs to be operational even after a short circuit. The fast operation contributes to economical protection for semiconductors.
The oversize fuse links allow flexibility in the short-circuit protection of distribution and motor circuits, which enables the optimal use of fuse switches.

Speed up your projects
Test proven type 2 coordination tables for the OS switch fuses are available online 24/7. From there you can easily select the appropriate ABB components for motor starting and protection. These motor starting solutions also help minimize the time needed for sizing all the starter components and ensure reliable operation after a fault occurs