The 3RU1116-0HB1 ships as a standalone relay — no auxiliary contact block included (0 auxiliary contacts per the spec). The screw terminals accept solid conductors: 1x (20…16 AWG), 1x (18…14 AWG), 1x 12 AWG for the main circuit, and finely stranded with core-end processing: 2x (0.5…1.5 mm²) or 2x (0.75…2.5 mm²) for the control circuit. If you need auxiliary signaling (e.g., a remote trip alarm), you'll add a separate auxiliary contact block — that's a separate line item in the kit.
The Size S00 frame (45 mm wide, 87 mm tall, 78 mm deep) fits the standard SIRIUS mounting grid and mates directly with S00 contactors like the 3RT2 series. Power dissipation at AC in hot operating state is 4.8 W total (1.6 W per pole), so thermal buildup in a dense panel is manageable — no forced cooling required for a single relay.