The Siemens 3RV2915-5B is a SIRIUS 3-phase supply terminal designed to bring three-phase power into the bottom of a panel-mounted S00 or S0 circuit breaker. It carries a 63 A ampacity and is rated for 690 V insulation voltage at pollution degree 3, which means it can handle the full rated current of the largest S0 motor-protective breaker without derating in typical industrial atmospheres. The screw-type terminals accept solid conductors up to 16 mm² and stranded up to 25 mm², so it covers the full wiring range for motor feeders up to that current. This is an active-production part, so it is sourced through standard Siemens distribution channels and quoted to order against an RFQ — availability and current pricing are confirmed at quote time.
Panel fit and wiring
The terminal block is 43 mm wide, 74 mm tall, and 48 mm deep. It mounts below the S00/S0 breaker on the same DIN rail.