The Siemens 3VA9987-0TF10 is a SENTRON accessory — specifically the COM060 extension cable, 0.8 m long, designed for the 3VA molded-case circuit breaker line. This cable links the breaker's communication module to a remote display or control interface, letting you pull the HMI away from the breaker face for better panel layout or enclosure door mounting.
What it fits
The cable is an accessory for the 3VA line of SENTRON molded-case circuit breakers. It plugs into the breaker's COM060 port, so no rewiring or panel modification is needed if the breaker already has that port. The 0.8 m length is enough to route the cable inside a standard enclosure without excess slack.