What the AC-1 rating means for your load
The 3RF3320-1AA45 is a 1-pole SIRIUS 3RF33 solid-state contactor rated 20 A in AC-1 duty at 40 °C, which covers resistive or lightly inductive loads like heaters, ovens, and lamp banks.
Compliance documentation on file
RoHS compliance confirmed since 15 January 2024.
Packaged as a single piece, dimensions 105 x 27 x 122 mm. The 27 mm width fits a standard DIN-rail footprint; screw terminals accept the load and control wiring directly. No auxiliary contact block required for basic on/off switching, but if feedback is needed, plan for a separate monitoring relay or a SIRIUS 3RF30 feedback module on the same rail.
