Overview
Manuals
Motor-Control Applications
Power-Section Design
Upgrade Path
Features:
- The SMC-Flex power section uses modular thyristor-based power poles to provide the solid-state switching function required for controlled motor starting and stopping
- The SMC-Flex platform incorporates an SCR bypass/run contactor arrangement, helping reduce steady-state power losses after the motor has reached operating speed
- Specifically as an SMC-Flex power-pole replacement item, making accurate part-number and configuration verification important when servicing legacy equipment
Allen-Bradley 41391-261-52 is an SMC-Flex power terminal compatible with Rockwell Automation's SMC-Flex intelligent motor controller platform. This power terminal forms the semiconductor switching portion of the SMC-Flex power circuit, while the entire SMC-Flex system provides controllable motor start and stop functionality and integrates bypass, motor overload protection, diagnostics, and multiple operating modes.
Rockwell Automation's SMC-Flex documentation lists this power terminal as a dedicated serviceable part, noting that the platform uses different power terminal configurations depending on the controller's current and voltage ratings. Current SMC-Flex documentation uses 150-FPP catalog numbers to identify its serviceable power terminal parts, while Rockwell's official support website provides a specific replacement reference number for 41391-261-52. Therefore, the original part number, the existing controller's ratings, and nameplate information should be verified before selecting a replacement part.
The Allen-Bradley 41391-261-52 SMC Flex series intelligent motor soft starter is supported by Moore Automated for verified industrial replacement and spare-part requirements.
Allen-Bradley 41391-261-52 SMC Flex series intelligent motor soft starter manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The 41391-261-52 is associated with the Allen-Bradley SMC-Flex platform and is used within the power section of a solid-state motor starter. The SMC-Flex family is intended for applications such as compressors, chillers, pumps, conveyors, and crushers, where controlled motor starting and stopping is required.
Rockwell's SMC-Flex documentation identifies the Power Pole as a modular power component incorporating SCRs and a bypass contactor, with the exact construction dependent on the controller rating; the current SMC-Flex Power Pole range covers controller ratings from 5 A to 1250 A.
For modernization projects, Rockwell Automation provides an SMC-Flex-to-SMC-50 migration solution for certain SMC-Flex controller sizes, so an upgrade should be evaluated against the complete installed controller and application rather than treating 41391-261-52 as a standalone universal replacement.
