531X300CCHADM5 | GE OEM 10-Slot Card Cage Chassis

Description

Product Introduction

The ADM5 is the final evolution of the DC-input chassis. The GE 531X300CCHADM5 combines the field-replaceable converter module from the ADM3 with the upgraded 92mm cooling fans that were introduced on the M5 revision of the AC chassis. It’s the best of both worlds: serviceable power supply and improved thermal performance. If you’re running a DC-powered drive rack, this is the chassis to have.

The model number tells the full story: “300CCH” is the standard chassis, “AD” indicates DC input with the field-replaceable module, and “M5” gives you the larger fans. The M5 fans move 65 CFM each (versus 45 CFM on the M1 and M3 revisions), which drops the internal temperature by about 8°C at full load. That’s a meaningful improvement if your DC module is running at 125V input and full 250W load—it keeps the module’s internal temperature about 10°C cooler, which extends the life of the electrolytic capacitors. The DC module itself is the same 531X300DCM1 cartridge used in the ADM3, with the same 84% efficiency and 50ms hold-up time. One thing to note: the ADM5 is about 1 lb heavier than the ADM3 because the fans are larger and have more substantial mounting frames. It’s not a dealbreaker, but it’s there.

Key Technical Specifications

Compatible Replacement Models

✅ Drop-in Replacement:

• 531X300CCHADM5 directly replaces 531X300CCHADM3, 531X300CCHADM2, and 531X300CCHADM1. The ADM5 has the same dimensions, same slot spacing, same backplane, and same mounting hole pattern as all earlier ADM series chassis. Move your boards over—no modifications needed. The DC input wiring is identical (terminals in the same position).
• 531X300CCHADM0 (earliest fixed-converter version): The ADM5 is a direct upgrade. The chassis is slightly heavier, but the board compatibility is unchanged. The fixed converter on the ADM0 is not interchangeable with the cartridge-based ADM5—but you don’t need to move it; the ADM5 comes with its own module.

⚠️ Software Compatible (Requires Recompile):

• None. The chassis is passive. The DC-DC converter module has no communication bus. No firmware, no configuration. No recompile needed.

❌ Hardware Incompatible:

• 531X300CCHADM5 with AC power: DC input only. Do not apply AC—the input filter caps are not rated for AC.
• 531X300CCHADM5 with a 210-series power supply: The DC module bay is not compatible with any AC power supply. Different form factor, different connector.
• 531X300CCHADM5 with a DC input voltage outside the jumper setting: The FET protection will clamp and blow the fuse. Double-check your voltage before you connect.
• 531X300CCHADM5 in a rack depth under 14.5″: Same depth as all ADM chassis. If your cabinet is shallow, the rear shroud can be removed (drops depth to 13.5″), but the DC module still requires the same internal depth. Measure before ordering.

Frequently Asked Questions (FAQ)

Q: What’s the improvement from ADM3 to ADM5?

A: The cooling fans. The ADM3 had 80mm fans (45 CFM); the ADM5 has 92mm fans (65 CFM). That’s a 44% increase in airflow. The chassis runs about 8°C cooler at full load, and the DC-DC converter module runs about 10°C cooler. The lower temperature extends the life of the electrolytic capacitors in the module—roughly double the lifespan at 25°C ambient. The ADM5 is the chassis to get if you’re in a warm cabinet or running the chassis at full capacity.

Q: Can I replace the DC-DC converter module in the ADM5 with the same cartridge as the ADM3?

A: Yes. The ADM5 uses the same field-replaceable cartridge (531X300DCM1) as the ADM3. The modules are interchangeable between the ADM3 and ADM5 chassis. If you have a spare module from an ADM3, it will work in an ADM5, and vice versa. The only difference is the chassis cooling.

Q: Does the ADM5 come with the DC-DC converter module installed?

A: Yes. The ADM5 ships with the 531X300DCM1 module pre-installed and tested. The module is seated in the bay with the latch engaged. You don’t need to buy the module separately—it’s included. If you want a spare, you can order the module separately.

Q: What’s the maximum temperature rating for the ADM5?

A: The chassis is rated for 55°C ambient with the fans operating. The DC-DC converter module is rated for 70°C internal temperature. At 55°C ambient, the module’s internal temperature will be about 65°C—still within spec. If your cabinet exceeds 55°C, you’ll need external cooling. The M5 fans make a significant difference—the ADM5 can handle 5°C higher ambient than the ADM3 before derating.

Q: Can I replace the fans in the ADM5 with quieter ones?

A: Yes, but with the same caveats as other M-series chassis. The ADM5 uses standard 92mm x 25mm, 12V DC fans with a Molex Mini-Fit Jr. connector. Quieter fans typically have lower airflow. If you swap to a quieter fan (e.g., 35 CFM), you’ll lose some cooling capacity. If your chassis is half-loaded, that’s fine. If it’s fully loaded, stick with the OEM fans. The OEM fans are available from us.

Q: Does the ADM5 support dual DC inputs for redundancy?

A: No. The ADM5 has a single DC input. If you need redundancy, you’d need an external automatic transfer switch (ATS) that switches between two DC sources. The chassis itself doesn’t have dual inputs. The DC-DC converter module has a single input stage. No field modification can change that.

Q: Can I use the ADM5 with a 24V DC bus that’s not regulated?

A: Yes, but the input tolerance is ±20%. If your unregulated bus fluctuates between 20V and 28V, that’s within spec. If it drops below 19V during motor starts, the module will fault (red LED). The 50ms hold-up time helps with short dips, but sustained undervoltage will trip the module. If your DC bus is unregulated, we recommend measuring it over a typical work cycle to ensure it stays within the tolerance.

Q: The ADM5 has a WARNING LED. What’s the threshold for that?

A: The WARNING LED (yellow) turns on when the input voltage is between 10% and 20% below nominal. At 24V nominal, that’s between 19.2V and 21.6V. The outputs are still regulated, but the module is warning you that you’re near the lower limit. If the WARNING LED comes on occasionally, that’s fine. If it’s on continuously, your DC bus is under-sized. Check your wire gauge and the health of your battery bank or rectifier.

Q: Can I rack-mount the ADM5 in a vertical orientation?

A: Yes, that’s the standard orientation. The chassis is designed for vertical mounting in a 19″ rack. The fans are on the side and pull air horizontally across the boards. Do not mount it horizontally—the airflow pattern changes and hot spots will develop. We’ve seen a few customers mount it horizontally in custom cabinets and then wonder why the boards overheat. Vertical is the way.

Q: Does the ADM5 have the same backplane as the AC chassis?

A: Yes. The ADM5 uses the 531X213D10ABG1 backplane—the same distributed-ground backplane used in the 531X300CCHAAM5 and 531X300CCHABM5. That means you can use any 210, 211, 212, or 213 series board in the ADM5. The backplane is pre-installed and tested. No additional configuration is needed.

Q: Is the ADM5 compatible with the 531X212DPC series power supplies?

A: No—the ADM5 is a DC-input chassis. The 531X212DPC series are AC-input power supplies. They are not compatible with the DC module bay. If you have a 212DPC power supply, you need an AC-input chassis (CCHAAM5 or CCHABM5). The ADM5 is strictly for DC input and uses the 531X300DCM1 module.

Q: What’s the typical shipping weight of the ADM5?

A: The chassis alone weighs 23 lbs (10.4 kg). With a full set of boards and the DC module installed, it’s about 30 lbs (13.6 kg). We ship it in a double-walled cardboard box with foam inserts. The box dimensions are 24″ x 16″ x 12″. The chassis is well-protected against standard shipping vibrations, but we recommend inspecting it for any damage upon receipt.

Q: The ADM5 is the final DC chassis revision. Is there an ADM6?

A: No. GE discontinued the 300 series chassis after the ADM5. There is no ADM6. The ADM5 represents the final production configuration: field-replaceable DC module and 92mm fans. If you see an ADM6 listed online, it’s almost certainly a mislabeled third-party unit or an aftermarket modification. The OEM ADM5 is the most current version you’ll find from genuine surplus sources.

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WESTINGHOUSE 1C31166G02
SIEMENS 6ES7414-2XK05-0AB0
A-B 1746SC-NI8U