The Siemens 3RV1975-1CA0 is an extended terminal front designed for use with SIRIUS 3RV1 size circuit breakers, accommodating up to 6 units.
What the terminal front does for the panel
This extended terminal front provides additional wiring space on the front of a 3RV1 size circuit breaker, allowing up to 6 units to share a common extended terminal arrangement. It is a mechanical accessory — no electrical rating of its own — that simplifies daisy-chaining power feeds or auxiliary connections across multiple breakers in a motor control center. The part mounts directly onto the breaker's front face using the existing DIN-rail clip; no additional panel cutout or drilling is required. For a panel builder wiring a group of SIRIUS 3RV1 breakers, this accessory reduces the number of individual terminal blocks needed at the gland plate.
The substance prohibitance date of 08.01.2008 aligns with the EU RoHS directive, so this part carries no restricted-substance compliance risk for European installations. No additional compliance documentation beyond the standard manufacturer declaration is typically required.