ABB OS Fusible Disconnects
ABB OS Fusible Disconnects are manually operated switch fuses from 20A to 1250A. ABB OS Fusible Disconnects are available for DIN, BS, NFC, CC, JJ, and L types. The ABB OS is reliable in extreme conditions, enabling rapid fault clearance and maintaining protection levels even after a fault occurs. These disconnects are easy to install and feature interlocking fuse covers that prevent opening while the switch is in the ON position. The fuse links are fully isolated from both ends when the switch is in the OFF position.
Features
- Reliable in extreme conditions
- The knife contact design in combination with the fuse link enables rapid fault clearance and maintains protection level even after fault occurs
- The knife contact is self-cleaning and maintenance-free
- Easy to install
- A modular structure allows the mechanism and poles to be located according to a designer's installation requirements
- The length of the shaft is adjustable, saving up to 50% installation time
- Double cabling is possible
- Safety and protection
- Interlocking fuse covers prevent opening while the switch is in the ON position
- The fuse links are fully isolated from both ends when the switch is in OFF position
Applications
- Mechanical equipment isolation
- Power distribution systems
- HVAC systems
- Motor control centers
- Industrial isolation and safety
Specifications
- 20A to 1250A manually operated switch fuses
- Three- and four-pole versions
- DIN-rail and panel-mount styles
- Available for DIN, BS, NFC, CC, JJ, and L fuse types
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