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- ABB 1SCA022715R9920 OFS690 Electronic Fuse Monitor 380-690V Monitoring Relay ABB 1SCA022715R9920 OFS690 Electronic Fuse Monitor 380-690V Monitoring Relay
ABB 1SCA022715R9920 OFS690 Electronic Fuse Monitor 380-690V Monitoring Relay
ABB 1SCA022715R9920 OFS690 Electronic Fuse Monitor 380-690V Monitoring Relay
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- Description
The ABB 1SCA022715R9920 OFS690 is an electronic fuse monitor rated 380...690 V AC at 50/60 Hz that detects a blown fuse on OS32G-1250 and OSM switch fuses. It mounts to the side of the switch fuse, on DIN-rail, or on a mounting plate, giving flexibility when panel layout does not allow side-mounting. The unit measures 50 x 100 x 100 mm and weighs 0.16 kg.
Technical Specifications
| SKU | 1SCA022715R9920 |
| Brand | ABB |
| Series | Motorized Switch Fuses |
| Catalog designation | OFS690 |
| EAN | 6417019261089 |
| Rated Operational Voltage, Main Circuit | 380...690 V AC |
| Rated Voltage (Ur) | 380...690 V |
| Rated Frequency (f) | 50 / 60 Hz |
| Mounting Type | Base mounting, DIN mounting, screw mounting |
| Net Width | 50 mm |
| Net Height | 100 mm |
| Net Depth / Length | 100 mm |
| Net Weight | 0.16 kg |
Selection Notes
Mounting on the left side of an OS32G-1250 switch fuse or the right side of an OSM motorized switch fuse keeps the monitor's wiring short and avoids a separate enclosure; choose DIN-rail or mounting-plate installation instead when the switch fuse itself has no free mounting face. The 380-690 V range covers both standard 400 V and higher 690 V distribution systems without a separate high-voltage variant.