Description
- HONEYWELL 51303940-150 | TDC/Experion Spare Asset
Unboxing & Physical Snapshot
- Brand & Model: Honeywell 51303940-150
- Product Type: Industrial cabinet dual fan assembly with integrated alarm function for control cabinet thermal management. The assembly is used to maintain airflow across automation cabinets and protect heat-sensitive electronics.
- Physical Dimensions (Approximate W × H × D):
- Approximately 300 × 100 × 500 mm (11.8 × 3.9 × 19.7 in.) including assembly frame.
- Fan diameter: approximately 172 mm (6.77 in.) depending on installed fan configuration.
- Estimated Shipping Weight: Approximately 3.22 kg (7.1 lb); packaged shipping weight may reach approximately 4.5 kg with protective materials.
- What’s in the Box:
- Honeywell 51303940-150 cabinet fan assembly
- Dual fan mounting frame
- Alarm contact assembly
- Power connection hardware
- Identification label
- Protective packaging
- Installation documentation when supplied
Product Introduction
Structure B — Architecture Hook
The Honeywell 51303940-150 mounts as a cabinet thermal-management component within industrial control enclosures, providing forced airflow to protect DCS, PLC, and network hardware installed inside the rack structure. Proper placement matters because restricted airflow can raise internal cabinet temperatures well above the surrounding room environment (—a common cause of premature electronic component aging).
This fan assembly includes alarm functionality intended to notify operators when cooling performance is compromised. The unit is not a control processor or I/O module; it is a supporting cabinet infrastructure asset that protects the electronics surrounding it. Inspect fan blades, mounting hardware, alarm contacts, and wiring terminals before installation because mechanical wear often appears before complete fan failure.
Core Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Honeywell |
| Model Number | 51303940-150 |
| Product Type | Cabinet Fan Assembly with Alarm |
| Application | Industrial control cabinet cooling |
| Fan Configuration | Dual fan assembly |
| Rated Voltage | 85–132 VAC |
| Frequency Range | 47–63 Hz |
| Rated Current | 0.5 A |
| Contact Current Rating | 0.5 A maximum |
| Contact Switching Rating | Approximately 200 VDC peak resistive |
| Airflow Type | Forced ventilation |
| Fan Diameter | Approximately 172 mm |
| Fan Speed | Approximately 3100 RPM |
| Power Consumption | Approximately 50 W |
| Operating Temperature | Approximately -20°C to +70°C (configuration dependent) |
| Protection Level | IP54 class reported for applicable assembly configurations |
| Shipping Weight | Approximately 3–4.5 kg |

- HONEYWELL 51303940-150
Specifications should be verified against the cabinet design drawing and installed Honeywell system documentation before replacement.
? Global Compliance & Industry Certifications
Expected regulatory approvals and compliance considerations for this Honeywell cabinet cooling assembly include:
- CE Mark — indicates conformity with applicable European electrical and EMC requirements when installed within an approved system.
- UL/cUL Recognition or Listing — may apply depending on the specific assembly revision and installation environment.
- RoHS Compliance — dependent on manufacturing date and product revision.
- TÜV Evaluation — may apply to certain industrial cabinet accessory configurations.
- ATEX/IECEx — generally not applicable to standard cabinet ventilation hardware unless installed as part of a certified hazardous-area enclosure system.
- Marine approvals (DNV GL) — applicable only for specifically certified cabinet packages.
UL certification matters because cabinet cooling equipment operates continuously near energized control hardware. Proper evaluation helps confirm electrical insulation, wiring safety, and enclosure integration requirements.
Verify specific lot certifications with OEM.
? Long-Term Storage & Asset Preservation Guide
Keep the 51303940-150 stored in a dry indoor warehouse with the fan blades protected from dust accumulation. Mechanical assemblies often degrade during storage when bearings collect contaminants or moisture.
Maintain humidity below 60% RH. Moisture exposure can oxidize electrical terminals and alarm contacts, creating intermittent fault indications after installation.
Rotate the fan assembly inspection schedule every 12–24 months. Check the fan housing, mounting brackets, wiring terminals, alarm contacts, and blade movement manually before release from inventory (a seized bearing discovered during inspection is far easier to handle than a cabinet overtemperature event).

- HONEYWELL 51303940-150
Physical Installation Prerequisites
- Install inside a compatible Honeywell control cabinet or approved enclosure.
- Verify mounting cutout dimensions before installation.
- Provide adequate inlet and exhaust airflow paths.
- Maintain approximately 50 mm or more clearance around ventilation openings where cabinet layout permits.
- Confirm AC supply voltage matches the nameplate rating.
- Connect alarm contacts to the approved monitoring circuit.
- Verify cabinet grounding and protective earth continuity.
- Secure mounting hardware to prevent vibration loosening.
Do not operate the fan with blocked airflow openings. Reduced ventilation can cause cabinet hot spots even when the fan motor is running.
Buyer’s FAQ (Logistics & Compliance Focus)
Q1. What HS Tariff Code is typically used for the Honeywell 51303940-150?
A: The final Harmonized System classification depends on the importing country’s customs interpretation and the declared function of the equipment. Cabinet cooling assemblies are generally reviewed under electrical machinery, fan, or control cabinet accessory classifications. Confirm the final HS code with your customs broker before shipment.
Q2. Does Country of Origin affect this Honeywell cabinet fan assembly?
A: Yes. COO documentation can affect import duties, trade agreement eligibility, and customer audit records. Keep the original identification label, supplier declaration, and receiving inspection documents with the asset history.
Q3. Should shipping insurance be included for this spare?
A: Recommended. The assembly contains mechanical fan components, electrical contacts, and mounting structures that can be damaged by impact. Use protective packaging and insure the shipment according to replacement value.
Q4. Does the 51303940-150 include firmware or software?
A: No. This is a cabinet cooling hardware assembly and does not contain user firmware. Verify mechanical compatibility, voltage requirements, alarm wiring, and enclosure fit before installation.



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