The 3DDE300412 ABB CMA132 is a Synpol D Generator Relay Terminal Board used in generator control and protection applications. The board provides an organized interface for connecting relay and control signals within generator-related electrical panels.
ABB CMA132 is identified by the ABB part number 3DDE300412 and the model designation CMA132. Available industrial parts references consistently associate this combination with a Generator Relay Terminal Board in ABB Synpol D equipment.
For replacement procurement, the complete part number 3DDE300412 is the most important identifier. The model designation CMA132 can be used alongside it when checking an existing spare-parts list, equipment label, or maintenance record.
Product Identification
| Item | Details |
|---|---|
| Brand | ABB |
| Part Number | 3DDE300412 |
| Model | CMA132 |
| Product Family | Synpol D |
| Product Type | Generator Relay Terminal Board |
| Main Application | Generator control and relay interfacing |
| Board Type | Terminal / interface board |
| Typical Installation | Generator control or protection panel |
The identification of CMA132 / 3DDE300412 as a Generator Relay Terminal Board is supported consistently across multiple industrial parts references.
Generator Relay Interface
CMA132 serves as an interface point for relay-related signals in generator systems. Rather than functioning as a standalone PLC CPU or general-purpose I/O controller, the board is intended to organize and connect field wiring associated with generator control and protection equipment.
This makes the part particularly relevant when maintaining older ABB generator control installations where individual terminal and interface boards may need to be replaced without changing the surrounding system.
The board can be encountered in applications involving relay signals such as generator start, stop and fault-related indications. Several industrial listings describe CMA132 as an interface between generator protection relays and the associated control system.
ABB Synpol D Application
The CMA132 designation is associated with ABB's Synpol D equipment. The part number is also found in spare-parts listings connected with ABB Advant DCS and generator control environments.
This makes 3DDE300412 particularly relevant to maintenance work on established power-generation installations where replacement parts must be matched to the original ABB hardware.
For procurement purposes, it is better to identify the component by its original ABB part number than to search for a generic "generator relay card," because different generator control systems can use visually similar interface boards with different terminal arrangements.
Board-Level Replacement
The 3DDE300412 is best treated as a complete replacement board rather than as a generic terminal accessory.
When replacing an installed CMA132, the following information should be checked against the existing unit:
- ABB part number
- CMA132 model designation
- Synpol D equipment identification
- Existing terminal arrangement
- Generator control cabinet documentation
- Associated relay and control wiring
The part number 3DDE300412 should remain the primary reference throughout the purchasing process.
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Physical Information
Some industrial parts databases list the approximate shipping dimensions for CMA132 as 12.7 × 20.3 × 7.6 cm, with a weight of approximately 0.6 kg. These figures are useful as general handling information, but they should not be presented as a confirmed ABB dimensional specification because different suppliers report slightly different physical measurements and packaging data.
For this reason, I recommend keeping the product's formal technical table relatively conservative.
Confirmed Product Data
| Parameter | Information |
|---|---|
| ABB Part Number | 3DDE300412 |
| Model | CMA132 |
| Product Type | Generator Relay Terminal Board |
| Series / Family | Synpol D |
| Application | Generator relay and control signal interfacing |
| Product Form | Board / terminal interface assembly |
Maintenance and Replacement Use
CMA132 is especially relevant when an existing generator control or protection panel contains an identified ABB CMA132 board that has failed, become damaged, or needs to be replaced during scheduled maintenance.
Typical procurement situations include:
- Replacement of a failed CMA132 board
- Maintenance of ABB Synpol D generator equipment
- Restoration of generator relay signal connections
- Spare-parts preparation for legacy generator control systems
- Replacement of an existing 3DDE300412 assembly
- Maintenance of established ABB power-generation installations
For these situations, matching the 3DDE300412 part number is more reliable than selecting a board based solely on its general function.
Related ABB Synpol D Parts
CMA132 belongs to a broader group of ABB Synpol D generator-related components. Other CMA-series parts can appear in the same procurement environment, but they should not be assumed to be interchangeable.
For example, available parts references list CMA135 / 3DDE300415 separately from CMA132, with a different generator-control function.
This is a good reason to retain the full ABB article number in your product title and URL rather than relying only on the CMA model family.
Identification Notes for Buyers
There are several descriptions circulating online for CMA132, including "relay card," "terminal module," and "generator relay board." For this product page, I recommend using the more specific and consistently documented term:
Generator Relay Terminal Board
The following identifiers should be treated as equivalent search references for the same product:
- 3DDE300412
- 3DDE 300 412
- CMA132
- CMA 132
- ABB CMA132
- ABB 3DDE300412
- ABB Synpol D CMA132
- Generator Relay Terminal Board CMA132
This gives the page coverage for both users searching by ABB part number and those searching by model designation.
Important Specification Note
A number of reseller pages publish detailed values for CMA132, including input-channel counts, voltage ratings, Modbus RTU, sampling rates and measurement accuracy. However, these specifications are inconsistent between sources and I could not verify them against a reliable ABB primary-source document for 3DDE300412.
Therefore, I would not recommend putting values such as "16 universal inputs," "690 VAC," "Modbus RTU," or "0.1% accuracy" into your website's official specification table unless you later obtain an ABB document that explicitly confirms them for this exact part number. This keeps the page aligned with your "official data only" rule rather than making the technical table look fuller with uncertain information.
FAQ
What is ABB 3DDE300412?
3DDE300412 is the ABB part number associated with the CMA132 Generator Relay Terminal Board in the Synpol D product family.
What is ABB CMA132?
CMA132 is the model designation for the ABB 3DDE300412 Generator Relay Terminal Board.
What is the main function of CMA132?
CMA132 provides an interface and terminal arrangement for relay and control signals used in generator-related control and protection systems.
Is CMA132 a PLC module?
It is better identified as a Generator Relay Terminal Board rather than a general-purpose PLC I/O module. Available product references consistently use this product description.
What equipment is CMA132 associated with?
The product is associated with ABB Synpol D generator control equipment and appears in spare-parts references for ABB Advant DCS / generator applications.
Is 3DDE300412 the same as CMA132?
Yes. 3DDE300412 is the part number and CMA132 is the model designation used for the same ABB Generator Relay Terminal Board.
How should I identify a replacement CMA132?
Use both identifiers when possible: ABB 3DDE300412 / CMA132. The existing generator control cabinet documentation and terminal arrangement should also be checked before replacing the board.
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