Nidec Servo CN55B31 Cooling Fan
- Product SKU: CFS-U002885
- Category: AC Fans, Nidec Cooling Fans
Confirm Fit Before Ordering
Use this quick check first, then review the full Product Specifications tab before placing an order.
Share the original fan label, connector photo, or target quantity so the team can check compatibility or quote bulk supply.
Reference model: CFS-U002885
Product Specifications
Review the technical data used for replacement matching, procurement comparison and engineering approval.
Nidec Servo CN55B31 Cooling Fan
Existing merchant record: manufacturer Nidec Servo; model CN55B31. This identity is not independently verified. The correction below reconciles duplicate or malformed merchant fields; it does not establish manufacturer-certified specifications or physical stock identity.
Visible selection details
- The front oblique photograph shows a square metal-coloured frame and black axial blades.
- The deep side wall has a recessed rectangular area, with distinct front and rear mounting flanges.
- The blade-side hub has no readable model label, and the fitted connection is outside the view.
Record clarification
| Nominal size reference | 120mm (merchant-listed; actual outline unmeasured) |
|---|---|
| Manufacturer reference | Nidec Servo (merchant record; independently unverified) |
Selection questions
What should I measure on this deeper frame?
Compare total depth, flange spacing and the mounting-hole pattern before matching a panel or bracket.
Which identity details are still needed for CN55B31?
Obtain a readable complete manufacturer label from the supplied unit and compare every ordering-code suffix, mounting feature and connection. The retained manufacturer/model text is a merchant reference, not independent stock verification.
Other retained electrical, dimensional and application fields remain merchant records. Exact-version technical specifications, actual condition, package contents and equipment compatibility require confirmation.
Compatibility Verification Checklist
Before ordering, please confirm these critical points:
- 1Exact model number on the original fan label
- 2Frame size: length, width and thickness
- 3Rated voltage and current
- 4Connector type and wire sequence
- 5Wire count: 2-wire, 3-wire or 4-wire PWM
- 6Airflow direction and mounting hole position
- 7Cable length and application environment
Still unsure? Send us photos of your fan label, connector and equipment. We will help check compatibility before you order.
Datasheet / Drawing
Use official documents and dimensional references when available. If a document is missing, contact us before ordering for replacement matching support.
Bulk Order
For repair batches, OEM projects or distributor replenishment, send the model number, target quantity, connector requirements and delivery destination.
Shipping & Returns
Shipping options, lead time and return eligibility may vary by product, quantity and destination. Confirm compatibility before ordering replacement fans.
- For bulk orders, request freight planning and availability confirmation before payment.
- For replacement orders, compare model, size, voltage, current and connector before installation.
- Unused items should remain in original condition for return review according to store policy.
FAQ
Common checks for replacement cooling fan sourcing.
Can you help match an old fan?
Yes. Send photos of the fan label, connector and equipment so we can check model, voltage, frame size and wiring.
Can I use a different brand as a replacement?
Often yes, but only after confirming frame size, electrical rating, airflow requirement, bearing type, connector and wire sequence.
What information is needed for a bulk quote?
Send part number, quantity, target lead time, connector or cable requirements and shipping destination.
