What it fits and why it matters
The 1SDA063107R1: This terminal is specific to the T7 and T7M breaker frames — it's the connection point for the load-side wiring. If your panel uses T7 breakers for feeder or main protection, this is the matching termination accessory. The SPC suffix likely indicates a standard-profile connection kit; verify the conductor range and torque spec against your cable sizes before ordering.