📌 Product Introduction
The MAK Caterpillar 1.00.7-36.21.00-24 is a PCB card rack associated with MAK marine engine control equipment. It is designed to accommodate plug-in electronic control cards within a MAK engine-control system.
The referenced unit is specifically listed as a PCB Card Rack with no back enclosure cover and is described as a used “runner takeout” component. The listed brand is MaK, with Germany shown as the country of origin.
Related documentation and product records associate the 1.00.7-36.21.00-24 designation with MAK engine-control equipment and marine automation applications.

📊 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | MAK / Caterpillar |
| Model | 1.00.7-36.21.00-24 |
| Series | MAK Engine Control System |
| Product Name | PCB Card Rack |
| Product Type | Electronic Module / PCB Rack |
| Application | Marine Engine Control |
| Installation | Plug-in PCB / Module Rack |
| Enclosure | No Back Enclosure Cover |
| Product Condition | Used / Runner Takeout |
| Country of Origin | Germany |
| Operating Voltage | System dependent; related MAK safety-system documentation specifies 24 VDC ±30% / -25% |
| Power | System dependent |
| Dimensions | Configuration dependent |
| Weight | Configuration dependent |
The exact electrical rating, dimensions, and weight for this specific rack should be confirmed from the equipment nameplate and original MAK documentation. The referenced listing confirms the model, type, used condition, and German origin.
⚙️ Main Features
🔹 Designed for MAK marine engine-control equipment
🔹 Provides mechanical mounting for plug-in control PCBs
🔹 Suitable for maintenance and replacement applications
🔹 Intended for integration into an existing MAK control system
🔹 Compatible with system-specific electronic cards when the rack configuration matches
🔹 Useful as a replacement spare for legacy MAK engine-control installations
🛠️ Operating Procedure & How to Use
This component is a PCB card rack, so it does not normally operate as a standalone controller. Its function is to provide the mechanical and electrical interface for compatible plug-in cards.
Before installation:
- Confirm the complete model number on the rack.
- Compare the rack with the existing system rack.
- Verify the number and type of PCB positions.
- Check all backplane connectors for damage or corrosion.
- Inspect mounting hardware and card guides.
- Confirm that the missing back enclosure cover will not compromise the intended installation.
- Make sure all installed PCBs are the correct MAK system components.
- Check system wiring before energization.
- Secure the rack correctly inside the control cabinet.
- Install the required plug-in cards in their designated positions.
⚠️ Because the referenced unit has no back enclosure cover, additional protection against accidental contact, contamination, moisture, and mechanical damage may be required depending on the final installation environment.
🔌 Startup Sequence
⚠️ Do not insert or remove plug-in cards while the rack is energized unless the specific MAK system documentation explicitly permits hot-swapping.
- Place the engine/control system in a safe condition.
- Confirm that all PCBs are correctly installed.
- Verify backplane and wiring connections.
- Check grounding and cabinet connections.
- Confirm the correct control-system supply voltage.
- Energize the control-system power.
- Allow the control electronics to initialize.
- Check PCB indicators and system alarms.
- Verify communication and engine-control functions.
- Perform an approved functional test before returning the engine system to service.
Related MAK safety-system documentation describes 24 VDC control-system operation and monitored inputs/outputs, showing the importance of verifying the actual system supply and installed module configuration rather than assuming a universal rack voltage.
⏹️ Shutdown Sequence
- Place the engine in the approved shutdown condition.
- Confirm that the engine-control system is no longer performing an active control operation.
- Isolate the system power.
- Verify that electrical energy has been removed.
- Wait for stored energy to discharge.
- Only then remove plug-in PCBs or disconnect rack wiring.
- Protect removed cards against ESD and moisture.
- Keep the rack and cards clearly identified for reinstallation.
📖 Product Usage Notes
The rack should be regarded as a system-specific mechanical and electrical assembly. The model number alone should not be used to determine whether an individual PCB is compatible.
When replacing a rack in an existing MAK engine-control system, record the original card positions before removal. Photograph the card arrangement and connector wiring, and retain the original slot sequence.
Check the backplane connectors carefully. Bent contacts, corrosion, contamination, or damaged card guides can cause intermittent faults that may appear to be PCB problems.
Because this particular unit is listed without a back enclosure cover, inspect the installation environment carefully. In marine engine rooms, protection from vibration, moisture, oil mist, and conductive contamination is particularly important.
❓ Common Questions & Answers
Q: What is the MAK 1.00.7-36.21.00-24?
A: It is a PCB card rack associated with MAK/Caterpillar marine engine-control equipment. The referenced listing identifies it specifically as a PCB Card Rack.
Q: Is it a PLC or controller by itself?
A: No. It is a rack designed to hold and interface with compatible plug-in electronic cards.
Q: What does “No Back Enclosure Cover” mean?
A: The referenced rack does not include its rear enclosure cover. This should be considered when installing it in a cabinet or exposed equipment area.
Q: Is this component new?
A: The referenced unit is listed as used and described as a “Runner Takeout.”
Q: What is the country of origin?
A: The referenced listing identifies Germany as the country of origin.
Q: Can any MAK PCB be installed in this rack?
A: No. The PCB type, slot position, connector arrangement, backplane, and system configuration must all be compatible.
Q: Where is this type of equipment used?
A: Related records identify the 1.00.7-36.21.00-24 equipment with MAK engine-control and marine/industrial applications.
Q: Can the rack be energized without the rear cover?
A: That depends on the original cabinet design and safety requirements. The missing cover should not be ignored where it leaves hazardous electrical parts exposed or reduces environmental protection.
Q: What should I check before purchasing a replacement?
A: Check the complete model number, rack layout, card-slot configuration, backplane connectors, mounting dimensions, rear-cover requirement, and compatibility with the existing MAK control system.
🔎 Recommended MAK / Caterpillar Related Models
- MAK 1.00.7-36.21.00-62 — PCB Card Rack
- MAK 1.00.7-36.29.00-43 — PCB Card Rack
- MAK 1.00.7-36.21.00-51 — Module Rack / Control Assembly
- MAK 9.01.7-93.11.00-03 — Plug-In Control Card
- MAK 9.01.7-93.01.00-08 — Plug-In Card
- MAK 9.01.7-94.01.00-11 — Plug-In Card
- MAK 9.01.7-94.01.00-12 — Plug-In Card
- MAK 9M20C Engine Monitoring System
- MAK 8M32C Engine Control System
- MAK Engine Safety System Plug-In Cards
The related model references above are based on available MAK equipment records and should be treated as related products rather than guaranteed drop-in replacements. For example, a MAK 1.00.7-36.21.00-62 rack is separately identified for MAK 8M32C equipment, while 1.00.7-36.21.00-51 is associated with a specific module-rack assembly.






