The 6SL3341-7TE38-4AA0 is a SINAMICS S120 Chassis-2 Active Interface Module (AIM) combined with an Active Line Module (ALM), rated for 840 A output and 500 kW type rating. It takes 380-480 V three-phase AC input and delivers a regulated 510-720 V DC bus — the backbone for multi-axis drive groups where a common DC link feeds several motor modules. This is a D-class product: made to order with engineering services required, not a shelf-stocked spare.
Active production and sourcing posture
Siemens lists this part as active. Because it is a D-class engineered-to-order unit, availability is not off-the-shelf — it is quoted and scheduled against an RFQ, with current pricing and lead time confirmed at quote time. The Group Code R220 and Product Group 4Q21 are Siemens internal classification tags used for BOM routing and order processing; include them on your RFQ to avoid routing delays.
The 840 A DC output at 510-720 VDC is sized for a common DC bus feeding multiple motor modules — think a multi-axis machine center or a conveyor section with coordinated drives. The 500 kW type rating is the continuous power the ALM can source from the line; it determines the total motor power you can hang off the DC link. The Active Interface Module handles the line-side filtering and pre-charging; the Active Line Module does the regenerative buck-boost conversion, so this pair gives you energy recovery back to the grid during deceleration — a real efficiency gain on high-inertia loads like centrifuges or test stands.
Compliance and regulatory notes
Siemens typically provides a EU Declaration of Conformity and a manufacturer's declaration for RoHS/REACH upon request; include that ask with your RFQ.