Allen-Bradley 1336 Modules: AB 1336-BDB-SP4D 74103-244-54

Name: Allen-Bradley 1336 Modules: AB 1336-BDB-SP4D 74103-244-54
Brand: Allen-Bradley

Model: 336-BDB-SP4D 74103-244-54

Brand Allen-Bradley

Series 1336

Model 336-BDB-SP4D 74103-244-54

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Product Details And Specifications

Allen-Bradley 1336 Series Technical Notes

The Allen-Bradley (Rockwell Automation) 1336 Series AC variable frequency drives represent one of the most widely deployed drive platforms in global heavy industry. Installed across petrochemical refineries, nuclear power auxiliary systems, offshore platforms, pulp and paper mills, and large-scale water treatment facilities, the 1336 family covers output ranges from fractional horsepower to several hundred kilowatts. Its modular architecture — separating the power structure, gate drive PCB, control board, and I/O interface — made it the standard reference design for industrial AC drive integration throughout the 1990s and 2000s. Despite the series reaching end-of-life status, the installed base remains substantial, and demand for spare boards such as the 1336-BDB-SP4D 74103-244-54 (Gate Drive PCB Assembly) continues across maintenance and lifecycle extension programs worldwide.

The Evolution of 1336 Architecture

The 1336 platform launched in the late 1980s as a general-purpose AC drive under the Allen-Bradley brand, then a division of Rockwell International. The original 1336 PLUS sub-series established the baseline: a six-pulse rectifier front end, IGBT inverter stage, and a dedicated gate drive PCB responsible for firing pulse generation, desaturation fault detection, and isolated gate signal distribution. The gate drive board — of which the 1336-BDB-SP4D is a representative assembly — interfaces directly with the IGBT modules and is the most failure-prone component in high-cycle or thermally stressed installations.

The 1336 FORCE sub-series introduced closed-loop flux vector control, expanding the platform into crane, extruder, and winder applications requiring precise torque regulation at low speed. The 1336 IMPACT variant added sensorless vector capability. The 1336 PLUS II refresh updated the control board firmware and added DeviceNet and DH-485 communication options without altering the power structure, meaning gate drive PCBs from earlier revisions remain cross-compatible within the same frame size.

Rockwell Automation formally discontinued the 1336 series and transitioned customers to the PowerFlex 700 and subsequently the PowerFlex 750 series. However, direct mechanical and electrical substitution is not always feasible in legacy panel designs, making original 1336 spare boards the only viable maintenance path for many sites.

1336 Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified components within the Allen-Bradley 1336 drive family, organized by functional category:

Gate Drive & Power Interface Boards

1336-BDB-SP4D 74103-244-54: Gate drive PCB assembly, mid-frame IGBT firing and fault detection board.
1336-BDB-SP6D: Gate drive PCB assembly, large-frame variant for higher kW ratings.
1336-BDB-SP2C: Gate drive board, compact-frame 1336 PLUS, dual IGBT channel configuration.
1336-PB-SP2C: Power interface board, compact frame, rectifier-to-DC bus interconnect assembly.
1336-PB-SP6A: Power bus board, large-frame 1336 FORCE series, high-current bus bar PCB.

Control & Regulation Boards

1336-L6: Main control board (logic board), 1336 PLUS series, V/Hz and open-loop vector firmware.
1336-L6E: Enhanced control board with expanded parameter set and fault logging for 1336 PLUS II.
1336F-L6: Control board, 1336 FORCE series, flux vector algorithm with encoder feedback interface.
1336T-L6: Control board, 1336 IMPACT series, sensorless vector control variant.
1336-SN-SP6A: Snubber board assembly, large-frame, transient suppression for DC bus switching nodes.

Communication & I/O Adapter Modules

1336-GM1: DeviceNet communication adapter, plug-in module for 1336 PLUS II control board slot.
1336-GM2: DH-485 / RS-232 communication adapter, serial interface for legacy PLC-5 integration.
1336-GM6: Remote I/O (RIO) adapter, Allen-Bradley 1771 backplane compatible scanner interface.
1336-MOD-L6: Modbus RTU adapter module, third-party SCADA integration for 1336 series drives.

Power Supply & Ancillary Assemblies

1336-PS-SP1A: Internal SMPS (switch-mode power supply) board, 24 VDC logic rail for control section.
1336F-BRF30-AA-EN: 1336 FORCE 30 HP, 460 VAC, NEMA 1 enclosure, complete drive unit reference.
1336T-B005-AA-EN: 1336 IMPACT 5 HP, 460 VAC, base unit with sensorless vector control.
1336-QA-SP3B: Charge board assembly, pre-charge resistor and relay PCB for DC bus soft-start circuit.

Quality Control for the 1336 Series Range

All 1336 series boards processed by DriveKNMS undergo a structured inspection and functional test protocol prior to shipment:

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