For resistive loads (AC-12), the contactor is rated at 10 A operating current. The main contact block is 4 NO (four normally open), with zero NC main contacts, so the part is suited for applications needing multiple independent load circuits switched on together. The auxiliary contacts are rated for 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 6 A at 230 V — these are the switching capacities for control circuits at different voltage levels. The enclosure is rated IP20 on the front and at the terminals, meaning finger-safe but not protected against moisture — suitable for dry indoor panel environments.
The 3RT1317-1BA40 uses screw-type terminals for the main current circuit, accepting solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and up to 2x (0.75 to 4 mm²). AWG equivalents are 2x (20 to 16), 2x (18 to 14), and 1x 12. Dimensions are 45 mm wide, 57.5 mm high, and 72 mm deep — a compact footprint that fits standard 45 mm DIN-rail slots.