Allen-Bradley 1336F-MCB-SP1K Replacement for 1336 FORCE Drive

Product Overview

Allen-Bradley 1336F-MCB-SP1K Replacement for 1336 FORCE Drive: Seamless Migration & Compatibility Upgrade

The Allen-Bradley 1336F-MCB-SP1K is the main control board (MCB) for the 1336 FORCE series AC variable frequency drive — one of Rockwell Automation’s most widely deployed drive platforms across manufacturing, water treatment, material handling, and process industries. As the 1336 FORCE series has reached end-of-life and spare parts become increasingly scarce, facilities engineers and maintenance teams face mounting pressure to source verified replacement boards that restore drive functionality without requiring a full drive cabinet redesign or motor rewiring.

TOPNLMS supplies the 1336F-MCB-SP1K as a direct drop-in replacement for failed or degraded main control boards in 1336 FORCE drives. Each unit is sourced from verified supply channels, inspected prior to dispatch, and backed by a 12-month warranty. Whether you are managing an emergency breakdown or executing a planned preventive maintenance swap, this board is stocked and ready to ship from Xiamen, China, with global logistics support.

Compatibility Comparison Table

Seamless Upgrade Solutions

Migrating a 1336 FORCE drive system involves more than swapping the main control board. In most retrofit projects, the 1336F-MCB-SP1K replacement is performed alongside a broader assessment of the drive’s peripheral components and communication architecture. The 1336 FORCE platform typically operates within a control cabinet that includes a 1336 FORCE power structure, gate driver board, and precharge assembly — all of which should be inspected during any MCB replacement to rule out cascading failures.

On the communication side, many 1336 FORCE installations use the 1336-GM1 or 1336-GM6 communication adapter modules to interface with Allen-Bradley Data Highway Plus (DH+) or Remote I/O networks. These adapters connect directly to the MCB and remain fully compatible with the replacement board, preserving your existing PLC-to-drive communication without reprogramming the host controller. If your system uses a 1747-SN Remote I/O Scanner or a 1756-DHRIO ControlLogix communication module to manage drive commands, no changes to the scanner configuration are required after the MCB swap.

For facilities transitioning from legacy SLC 500 or PLC-5 controllers to ControlLogix or CompactLogix platforms, the 1336F-MCB-SP1K replacement can serve as an interim measure — keeping the existing drive operational while the broader control system migration is planned. In such architectures, the drive typically receives speed reference and enable signals via hardwired I/O or Remote I/O, both of which remain unaffected by the board replacement. Terminal block wiring to the 1336 FORCE’s control I/O connector (TB3) does not need to be modified.

If the drive is installed in a Motor Control Center (MCC) or standalone enclosure with a 1336-PB series power board, the MCB interfaces with the power structure through a defined ribbon cable and connector assembly. Technicians should inspect the 1336-PB power board and gate driver assembly during the MCB replacement to confirm the fault originated at the control board level. In some cases, a failed MCB is accompanied by a degraded 1336-BRF brake resistor feedback circuit or a faulty 1336-MOD option module — both of which should be verified before commissioning the replacement board.

For sites that require HMI integration, the 1336 FORCE drive communicates with PanelView terminals via DH+ or DeviceNet, depending on the installed communication adapter. The replacement MCB preserves this interface, allowing existing PanelView 550, PanelView 600, or PanelView Plus operator panels to resume normal drive monitoring and control without screen reconfiguration.

Retrofit Guidance FAQ

Q: Does replacing the 1336F-MCB-SP1K require rewiring the control terminals?
A: No. The replacement board uses the same connector layout and terminal block pinout as the original. All existing control wiring to TB3 (analog reference, digital I/O, enable, fault reset) remains in place.

Q: Will my existing PLC program need to be modified after the MCB swap?
A: No. The drive’s communication interface (DH+, Remote I/O, or DeviceNet via adapter) is handled by the communication adapter module, not the MCB itself. Your SLC 500, PLC-5, or ControlLogix program continues to communicate with the drive without modification.

Q: Is the replacement board compatible with all 1336 FORCE drive ratings?
A: The 1336F-MCB-SP1K is the standard MCB used across the 1336 FORCE drive family. Confirm your drive’s catalog number and firmware revision before installation. Contact TOPNLMS with your drive nameplate data for pre-shipment verification.

Q: What are the physical space requirements for installation?
A: The replacement board matches the original MCB form factor exactly. No enclosure modification, DIN rail adjustment, or panel cutout change is required. Installation is a direct board-level swap inside the existing 1336 FORCE drive enclosure.

Q: How do I verify the MCB is the failed component before ordering?
A: Common indicators of MCB failure include drive fault codes (F002, F005, F012, F048), failure to power up the control section while the power structure is intact, loss of keypad communication, or inability to accept parameter changes. TOPNLMS technical support can assist with fault code interpretation prior to purchase.

Q: Can this board be used in a system being migrated from PLC-5 to ControlLogix?
A: Yes. The 1336F-MCB-SP1K replacement is an effective interim solution during phased control system migrations. It keeps the existing drive operational while the host controller upgrade is completed, reducing overall project risk and downtime.

Warranty Assurance

Every 1336F-MCB-SP1K supplied by TOPNLMS is covered by a 12-month warranty from the date of shipment. Prior to dispatch, each board undergoes a pre-shipment functional inspection to verify board integrity and connector condition. In the event of a confirmed defect within the warranty period, TOPNLMS provides replacement support with priority processing.

Our after-sales response team is reachable via email at [email protected] or by phone at +86 18359293191. We support customers through installation verification, fault code diagnosis, and compatibility confirmation before and after purchase. Boards are shipped from Xiamen, China, with DHL, FedEx, and UPS express options available for urgent breakdown requirements. Standard lead time for in-stock units is 3–5 business days to most international destinations.

For procurement teams requiring documentation, TOPNLMS can provide a commercial invoice, packing list, and certificate of conformance upon request. Volume pricing is available for MRO stocking orders and system integrators managing multi-site 1336 FORCE installations.