Description
Allen-Bradley 1336E-MC2-SP42A | 1336E Main Control PCB | V4.02 Frames B–H
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Catalog Number | 1336E-MC2-SP42A |
| Product Family | 1336E |
| Board Type | Main Control PCB |
| Firmware Version | V4.02 |
| Language Module | English |
| Frame Compatibility | B–H |
| Functional Board Number | 74103-193-55 |
| Application | 1336E AC drive control |
| Mounting | Internal drive control assembly |
Rockwell’s 1336 drive spare-parts catalog explicitly identifies 1336E-MC2-SP42A as “PCB, Main Control 1336E, w/ English LM, V4.02, Frames B-H.” The catalog separately lists the MC1 version for Frames A1–A4, making the MC1/MC2 distinction important during replacement.
Product Introduction
The Allen-Bradley 1336E-MC2-SP42A is the main control printed circuit board used in 1336E drives with Frame B through H hardware. Its catalog designation includes the V4.02 firmware level and English language module, so this is a configured drive-control spare rather than a generic replacement PCB.
The board sits at the control level of the drive and should be matched against the original drive’s frame, firmware generation, language configuration, and installed hardware. A reseller listing may call it a “control module,” but Rockwell’s spare-parts documentation identifies it specifically as a Main Control PCB.
1336E-MC2-SP42A
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
The major replacement issue is firmware and frame compatibility, not simply physical board fit. The 1336E-MC2-SP42A belongs to the B–H frame group and carries V4.02 control firmware, while other 1336E main-control boards use different frame groups or firmware revisions.
Typical Applications
- 1336E AC drives, Frames B–H — main drive-control replacement.
- Legacy production equipment — restoration of existing 1336E drive assemblies.
- Drive control-board failure recovery — replacement when the original main PCB has processor, memory, or control-circuit faults.
- Maintenance spares — retaining the original V4.02/English configuration for an installed drive population.
Technical Pitfalls to Avoid
- Do not substitute MC1 and MC2 by appearance.
Rockwell identifies MC1 for Frames A1–A4 and MC2 for Frames B–H. The 1336E-MC2-SP42A is specifically assigned to B–H frames. - Do not ignore the V4.02 firmware designation.
Rockwell separately lists V2.03, V3.01 and V4.02/V4.03 main-control boards. The firmware generation is therefore part of the spare-part identity. - Check the language module.
The exact catalog description includes an English LM. Do not assume that another language-module configuration is interchangeable simply because the underlying PCB appears identical. - Do not use generic 1336 drive electrical ratings as the board specification.
The board itself is the drive’s control PCB. Voltage, horsepower, current and input configuration belong to the complete 1336E drive and should be verified from the drive nameplate rather than assigned to the PCB.
Related Products
- 1336E-MC1-SP42A — V4.02 Main Control PCB for Frames A1–A4; different frame group from MC2.
- 1336E-MC2-SP43A — V4.03 Main Control PCB for Frames B–H; later firmware generation than SP42A.
- 1336E-MC2-SP31B — V3.01 Main Control PCB for Frames B–H; older firmware generation.
- 1336E-MC2-SP23A — V2.03 Main Control PCB for Frames B–H; earlier 1336E control generation.
- 1336E-MC1-SP43A — V4.03 Main Control PCB for Frames A1–A4.
- 1336E-MCB-4UPGRD — language and control-parameter firmware upgrade associated with the 1336E V4.03 generation.
- 1336T-GT1-SP34B — PLC Communications Adapter for 1336T equipment; communication-adapter function rather than main drive control.
Procurement Note
For , record the complete catalog number, 74103-193-55 board number, V4.02 firmware, English language-module configuration, and the installed drive frame size.
Do not approve a replacement based only on the description “1336E Main Control Board.” Rockwell’s own spare-parts list distinguishes the MC1/MC2 frame groups and several firmware generations. A board marked SP43A, SP31B, or MC1 may look similar while representing a different configuration.
For a field replacement, capture the original drive parameters and fault history before removing the old control board. After installation, verify the drive’s control configuration, feedback, command source, protective settings, and run permissives before returning the motor to service.
