Allen-Bradley 1336-PB-SP23C Replacement for 1336 PLUS Drive

Product Overview

Allen-Bradley 1336-PB-SP23C Replacement for 1336 PLUS Drive: Seamless Transition & Compatible Upgrade

The Allen-Bradley 1336-PB-SP23C is the OEM power board assembly designed for the 1336 PLUS series AC variable-frequency drives manufactured by Rockwell Automation. As the 1336 PLUS platform approaches end-of-life and spare parts become increasingly scarce, plant engineers and maintenance teams across process industries, material handling, HVAC, and pump-control applications are actively seeking verified replacement boards to extend drive service life or execute a controlled migration to modern drive platforms.

TOPNLMS stocks the 1336-PB-SP23C as a direct-fit power board replacement. Each unit is pull-tested, functionally verified, and shipped with a 12-month warranty. Whether you are performing an emergency swap to minimize unplanned downtime or executing a planned retrofit program, this board provides the lowest-risk path to restoring your 1336 PLUS drive to full operational status.

Compatibility Comparison Table

Seamless Upgrade Solutions

A successful 1336 PLUS power board replacement rarely involves a single component in isolation. In practice, maintenance engineers performing a controlled retrofit or emergency repair will also evaluate the condition of surrounding assemblies within the same drive cabinet or control system architecture.

When replacing the 1336-PB-SP23C power board, it is common practice to simultaneously inspect or replace the 1336-MOD-L2E Main Control Board, which governs all closed-loop speed regulation, PID logic, and fault diagnostics. A degraded control board can mask the root cause of repeated power board failures, so replacing both boards during a planned outage is a widely recommended field practice.

The 1336 PLUS drive communicates with upstream PLCs and SCADA systems via the SCANport communication interface. Existing SCANport adapter modules — such as the 1203-GU6 Universal Gateway for DeviceNet or the 1203-SSS SCANport Splitter — remain fully compatible after the power board swap, preserving your existing network topology without any protocol reconfiguration.

For sites migrating from the 1336 PLUS platform to the current PowerFlex 700 or PowerFlex 755 drive families, the power board replacement can serve as an interim measure while the broader migration project is planned. The PowerFlex 700 supports EtherNet/IP natively, enabling a phased transition where legacy SCANport-based I/O is gradually replaced with 1734 POINT I/O modules on an EtherNet/IP network, reducing the scope of any single cutover window.

Within the same control cabinet, the 1336 PLUS drive is frequently paired with a 1756 ControlLogix or 1785 PLC-5 controller. If your site is also evaluating a controller upgrade, the 1336-PB-SP23C replacement extends the operational life of the drive long enough to align the drive migration with the controller migration schedule, avoiding a forced dual-cutover under time pressure.

Ancillary components that are commonly sourced alongside the 1336-PB-SP23C include the 1336-BRF-SP2 Brake/Chopper Board for applications with regenerative loads, the 1321-3R drive isolation transformer for sites with sensitive power quality requirements, and the 1336-GM-SP1 Gate Driver Module where IGBT gate-drive integrity is in question. Sourcing these components together from a single supplier reduces procurement lead time and simplifies incoming inspection.

For field commissioning after the board swap, engineers typically use a 1203-USB SCANport-to-USB programming cable in conjunction with DriveExplorer or DriveExecutive software to verify parameter integrity, confirm fault history has been cleared, and perform a no-load run test before returning the drive to service. TOPNLMS can advise on cable compatibility for your specific firmware revision upon request.

Retrofit Guidance FAQ

Q: Do I need to re-enter drive parameters after replacing the 1336-PB-SP23C?
A: No. Drive parameters are stored on the main control board (1336-MOD series), not on the power board. Replacing the 1336-PB-SP23C does not erase or alter any programmed parameters. However, it is best practice to upload a parameter backup via DriveExplorer before beginning any board-level work.

Q: Is any rewiring required at the terminal block?
A: No rewiring is required. The 1336-PB-SP23C is an internal board assembly connected via OEM ribbon cables and edge connectors. All field wiring at the drive’s power and control terminal blocks remains undisturbed during the swap.

Q: Will my existing SCANport communication modules continue to work?
A: Yes. SCANport adapter modules (DeviceNet, Profibus, Remote I/O, DH+) connect to the main control board, not the power board. They are unaffected by the 1336-PB-SP23C replacement and require no reconfiguration.

Q: Does the replacement board fit all 1336 PLUS frame sizes?
A: The 1336-PB-SP23C is specific to the frame sizes and horsepower ratings that use this board designation. Please confirm your drive’s catalog number and nameplate data before ordering. Contact TOPNLMS at [email protected] with your full drive catalog number if you need confirmation.

Q: What ESD precautions are required during installation?
A: Standard industrial ESD precautions apply — use a grounded wrist strap, handle the board by its edges, and work on an ESD-safe mat. Refer to the Allen-Bradley 1336 PLUS User Manual (publication 1336 PLUS-5.0) for the complete board replacement procedure.

Q: Can this board be used as a long-term solution, or should we plan a full drive replacement?
A: The 1336-PB-SP23C replacement is a proven long-term solution for sites committed to the 1336 PLUS platform. For sites planning a migration to PowerFlex 700 or PowerFlex 755, the board replacement provides a reliable bridge that eliminates emergency downtime pressure while the migration project is properly scoped and scheduled.

Q: What if the drive faults again after the power board replacement?
A: If the drive continues to fault after the power board swap, the root cause may lie in the main control board, gate driver module, or IGBT power stack. TOPNLMS provides post-sale technical support to help diagnose persistent fault conditions. Our 12-month warranty covers the supplied board against manufacturing defects.

Warranty Assurance

Every 1336-PB-SP23C unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. Our pre-shipment process includes visual inspection, functional power-on verification, and connector integrity testing. Units that do not pass our outgoing quality check are not shipped.

In the event of a warranty claim, TOPNLMS will arrange a replacement unit or issue a refund in accordance with the agreed purchase terms. Our typical warranty response time is within 2 business days of receiving a documented fault report. We do not require the customer to return the defective unit before dispatching a replacement in most cases, minimizing your downtime exposure.

For urgent procurement requirements — including same-day quotation, export documentation, and expedited freight — contact our sales team directly. We ship from Xiamen, China via DHL, FedEx, and UPS Express, with typical transit times of 3–7 business days to most destinations worldwide.

• Warranty Period: 12 months from delivery date
• Pre-shipment Testing: Functional verification on every unit
• Warranty Response: Within 2 business days of fault report
• Replacement Policy: Advance replacement available in most cases
• Shipping: DHL / FedEx / UPS Express from Xiamen, China
• Lead Time: In stock — 1–3 business days