ABB 6318/2TDHHP DC Axial Fan

ABB 6318/2TDHHP – Stop the Clock on Your Downtime. Ship Today.

Every hour your drive enclosure runs without proper cooling is a countdown to thermal shutdown. The ABB 6318/2TDHHP DC axial fan is the single component standing between your ACS880 drive or AC500 PLC rack and an unplanned production halt. We stock it. We ship it. Same day from Xiamen.

If you’re reading this at 2 AM with a fault code on your HMI and a line manager breathing down your neck — this is the page you need. No fluff. No lead time games. Just the part, verified, boxed, and moving toward your facility within hours of order confirmation.

⚡ URGENT REQUIREMENT? Contact: [email protected] | WhatsApp: +86 18359268345

Quick Technical Datasheet

Troubleshooting & Replacement Tips

How do you know the 6318/2TDHHP has failed? In most ABB drive systems, a dead cooling fan doesn’t announce itself with a dedicated fault code — it shows up as a cascade. You’ll see Overtemperature Warning (fault 9) or Drive Overtemperature (fault 10) on ACS880 drives first. The drive throttles output, then trips. If your ambient is within spec and the heatsink is clean, the fan is your prime suspect.

Step-by-step replacement procedure:

1. Isolate and de-energize. Open the main disconnect. Wait the full capacitor discharge time per the ABB service manual — minimum 5 minutes for ACS880 frames R5 and above. Verify with a CAT III meter before touching anything inside the enclosure.
2. Locate the fan assembly. On ACS880 drives, the cooling fan is typically mounted at the bottom air inlet or top exhaust section of the power module. On AC500 PLC racks, it sits in the rear panel of the power supply section.
3. Document the wiring before disconnection. Photograph the connector orientation and cable routing. The 6318/2TDHHP uses a keyed DC connector — polarity reversal will destroy the new unit on first power-up.
4. Remove the old unit. Four M4 screws on the mounting frame. Note the airflow direction arrow on the fan housing — the replacement must match. Axial fans are not reversible by simply flipping the unit; the blade pitch is fixed.
5. Inspect the air path. While the fan is out, clear any accumulated dust from the heatsink fins with compressed air (dry, oil-free). A blocked heatsink will kill your new fan prematurely.
6. Install the 6318/2TDHHP. Seat the unit in the frame, torque M4 screws to 2.0 Nm. Reconnect the DC supply connector — confirm polarity. Do not force the connector; it is keyed and should seat with light pressure only.
7. Verify before closing. Apply control power only (not main power). Confirm the fan spins immediately on energization. Listen for bearing noise — a new unit should be near-silent. Any grinding or intermittent spin indicates a connector issue or a damaged unit.
8. Clear faults and restore. Reset the drive fault log via the ACS880 control panel (Menu → Diagnostics → Reset Faults). Restore main power. Monitor drive temperature via parameter 35.01 (Inverter Temperature) for the first 30 minutes of operation.

Common mistakes that cause repeat failures: Running the drive with the enclosure door open during testing drops the internal static pressure and starves the heatsink of airflow — the fan will appear to work but the drive will still overheat. Always close and latch the enclosure before thermal validation.

Reliability in Harsh Conditions

The 6318/2TDHHP is not a commercial-grade fan repurposed for industrial use. It is engineered from the ground up for the thermal and mechanical demands of continuous-duty drive enclosures. The rotor assembly is dynamically balanced to minimize vibration transmission to adjacent PCBs — a critical factor in environments where floor-mounted drives absorb constant mechanical shock from nearby presses, compressors, or conveyor systems.

Sealed ball bearings extend the lubrication interval well beyond what sleeve-bearing alternatives can offer, making this unit appropriate for installations where scheduled maintenance windows are infrequent. The motor windings are rated for operation in ambient temperatures up to 60°C — covering the worst-case internal enclosure temperatures seen in tropical manufacturing facilities and outdoor switchgear cabinets.

Humidity resistance is built into the insulation system. In coastal and high-humidity environments — paper mills, food processing, marine applications — the winding insulation resists moisture ingress that would cause premature winding failure in standard-grade fans. The housing material maintains dimensional stability across the full operating temperature range, preventing the frame warping that can cause blade-to-shroud contact and catastrophic failure in cheaper alternatives.

Vibration testing per IEC 60068-2-6 ensures the unit survives the resonance frequencies common in industrial machinery installations. If your facility runs heavy stamping equipment or reciprocating compressors, this matters — vibration-induced bearing fatigue is the leading cause of premature fan failure in those environments, and the 6318/2TDHHP’s bearing specification accounts for it.

Global Express Logistics

Our warehouse is located in Xiamen, Fujian Province — one of China’s primary export hubs with direct access to DHL, FedEx, and UPS international gateways. This is not a drop-ship arrangement. Stock is physically on our shelves, inspected, and ready to pack.

Standard express timeline (DHL/FedEx International Priority):

• Southeast Asia (Singapore, Thailand, Malaysia, Vietnam): 2–3 business days
• Middle East (UAE, Saudi Arabia, Qatar): 3–4 business days
• Europe (Germany, UK, Netherlands, Poland): 3–5 business days
• North America (USA, Canada, Mexico): 4–6 business days
• Australia / New Zealand: 3–5 business days
• South America (Brazil, Chile, Colombia): 5–7 business days

Orders confirmed before 14:00 CST are processed and handed to the carrier the same business day. You receive a tracking number within 2 hours of dispatch. All shipments include a commercial invoice, packing list, and certificate of conformity — the documentation package your customs broker needs to clear the shipment without delay.

For critical plant shutdowns, we support DHL Express Worldwide (Next Flight Out) on request. Contact us directly via WhatsApp for NFO availability and surcharge — in genuine emergency situations, we have moved parts from Xiamen to European destinations in under 36 hours door-to-door.

Export classification: HS Code 84145990 (fans, non-domestic). No export license required for this component to standard destinations. Dangerous goods: none. No special handling surcharges apply.

Contact Information

📧 Email: [email protected]
💬 WhatsApp: +86 18359268345
🌐 Web: siemensplc.com
© 2026 siemensplc.com. All rights reserved.