Allen-Bradley 1336-MCB-SP2D Control Panel Board – Obsolete 1336 PLUS Spare Part

Technical Dossier

Product Details And Specifications

Allen-Bradley 1336-MCB-SP2D Control Panel Board – Obsolete 1336 PLUS Spare Part: Protecting Your Automation Assets When Rockwell Has Moved On

DriveKNMS maintains sourced inventory of this board specifically to serve facilities that have made a deliberate, financially sound decision to extend the operational life of their 1336 PLUS assets rather than undergo premature system retirement.

RFQ support for obsolete parts: Send the model number, required quantity and destination so DriveKNMS can confirm sourcing options before quotation.

Technical Specifications

Note: Electrical parameters are not published here to prevent misapplication. Please confirm your drive nameplate data and firmware revision with our technical team before ordering.

Solving the Discontinued Hardware Crisis

The 1336-MCB-SP2D is the central intelligence of the 1336 PLUS drive. It manages speed reference processing, fault diagnostics, communication adapter interfacing (including 1336-GM1, 1336-BAS, and DeviceNet adapter slots), and the core PWM control logic. When this board fails, the drive is non-functional — there is no partial workaround.

Facilities that have operated 1336 PLUS drives for 15 to 25 years have accumulated something that cannot be purchased: institutional knowledge. Your maintenance technicians know the quirks of these drives. Your PLC programs are tuned to their response characteristics. Your operators understand the HIM interface. Discarding that accumulated expertise — along with the drives themselves — because a single control board failed is a decision that deserves serious financial scrutiny before it is made.

A documented strategy used by asset-conscious plant engineers is the critical spare buffer approach: procuring one or two 1336-MCB-SP2D boards as on-shelf insurance. The cost of two spare boards is typically less than 2% of the cost of a single forced drive replacement project. For facilities with five or more 1336 PLUS drives still in service, this is not optional maintenance planning — it is basic asset protection.

The 1336 PLUS platform, when properly maintained, is mechanically and electrically capable of continued service. The control board is the most failure-prone component due to electrolytic capacitor aging and environmental exposure. Addressing this specific vulnerability extends the viable service life of the entire drive by 5 to 10 years in most industrial environments.

Condition & Reliability Assurance

DriveKNMS applies a structured 5-step quality process to all obsolete control boards before dispatch review:

• Step 1 – Visual and Physical Inspection: Full board examination for mechanical damage, burn marks, cracked solder joints, and connector pin integrity.
• Step 2 – Electrolytic Capacitor Assessment: Capacitors are the primary failure point on aged control boards. Each unit is evaluated for capacitor bulging, leakage, and ESR degradation. Boards with compromised capacitors are either recapped or removed from saleable inventory.
• Step 3 – Firmware Version Verification: The firmware revision is documented and disclosed to the buyer. Compatibility with your specific drive revision is confirmed before dispatch review where possible.
• Step 4 – Pin and Connector Corrosion Check: All edge connectors, ribbon cable interfaces, and backplane connectors are inspected and cleaned. Corroded pins are a common cause of intermittent faults on boards that have been in storage.
• Step 5 – Functional Verification (where test equipment permits): Boards are bench-tested against known-good drive configurations where our test infrastructure supports the specific variant.

Q: How is condition confirmed before quotation?
A: Available condition, photos, test records and documentation are checked according to the requested model and sourcing channel before a formal RFQ response.

Key Features for System Maintenance

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.