Sourcing and Lifecycle
The 3RT1935-5AT61 is designated as a phased-out product with the successor being the SIRIUS 3RT2 series. For new builds or replacements where the panel design allows, the 3RT2 coil is the drop-in functional upgrade. For existing panels locked to the 3RT1 footprint, this coil is sourced to order against an RFQ through independent distribution — availability and current pricing are confirmed at quote time.
Integration Note
The coil mounts onto SIRIUS Size S2 contactors via the standard screw terminal interface. Verify the control voltage matches the 600 V AC 60 Hz rating before energizing — a 50 Hz coil on 60 Hz supply will overheat, and vice versa. The screw terminal accepts solid or stranded copper wire; torque to the contactor manufacturer's specification for reliable long-term connection.