ON-delay timing and the 3 A current ceiling
The 3RA2813-2FW10: This SIRIUS motor starter integrates an ON-delay function with an adjustable time range from 0.05 to 100 s — set via the front dial. The 3 A maximum rating at AC/DC supply voltage (24... 240 V AC/DC) defines the load it can switch directly; for higher-current motor circuits, the 3RA28 feeds a contactor coil rather than handling the main motor current. Rated for basic insulation, pollution degree 3 environment, and an operating temperature range of -25 to +60 °C — suited to industrial panels where dust and humidity are present.
Clip-on mounting and panel footprint
Snaps onto DIN rail via its clip-on fastening method — no screws needed. The 45 mm width and 38 mm height fit a standard 1-module slot; depth is 74 mm, leaving clearance for wiring in shallow enclosures. Mounting position is any orientation like a contactor, which simplifies layout in dense panels.
Wiring and auxiliary contact ratings
Wire range accepts solid and stranded conductors from 20 to 14 AWG.