SIRIUS size S00 power contactor — 4 NO, 5.5 kW AC-2
The Siemens 3RT1317-1AV00 is a SIRIUS-brand power contactor in the compact size S00 frame, carrying four normally-open main contacts and rated for 5.5 kW at AC-2 duty on 400 V 50/60 Hz. The 24 VDC coil pulls in the armature; auxiliary contact ratings span 10 A at 24 V down to 0.3 A at 220 V. Front and terminal faces are IP20-rated, so the contactor is protected against finger contact in a closed panel.
Dimensions are 45 mm wide, 57.5 mm tall, 72 mm deep — fits a standard 45 mm DIN slot with room for auxiliary blocks alongside. Pollution degree 3 environment (conductive pollution) is acceptable, typical for industrial control panels.
For Type 2 coordination (contactor remains operational after a fault), use gL/gG 20 A. The contactor has zero NC main contacts and four NO main contacts — no normally-closed power poles on this variant.