Control Techniques SP3403 Housing Replacement

Control Techniques Unidrive SP SP3403 HMI Case Replacement
Order each part separately is available

A damaged HMI enclosure might seem like a low-priority issue. The screen still works. The controls respond. Functionally, the unit is fine.
But a cracked Nidec Unidrive SP SP3403 Housing creates real hazards that don't show up in a performance test.
Sharp edges and splintered corners can cut operators' hands during routine use. Loose fragments can fall into the enclosure, making contact with live circuit boards and causing shorts or intermittent failures. Gaps in the seal leave internal components exposed to dust, moisture, and accidental contact — conditions that can escalate a simple crack into a more serious electrical or safety incident.
Replacing the shell eliminates all of these risks at once.
Unidrive SP Manual SP3403 Enclosure restores the original protective seal and smooth exterior of your Control Techniques HMI. No sharp edges. No gaps. No loose debris. The housing fits flush and secure, the same way it left the factory.
For maintenance and safety teams, this is a straightforward fix that addresses hazards before they become incidents. One shell swap, minutes of work, and the risk is gone.
Don't wait for a cut, a short, or an inspection finding to act. If Control Techniques Unidrive SP SP3403 HMI Case is compromised, replace it — before it becomes more than a cosmetic problem.
Specifications:
The table below describes the parameters of Control Techniques Unidrive SP SP3403 Plastic Shell.
| Material: | ABS Plastic |
| Product Line: | Unidrive SP |
| Ambient Temperature: | 0º to 40ºC (32º to 104ºF) |
| Humidity: | 95% |
| Environment: | Free From Corrosive Gases |
| Storage Temperature: | -40º to 55ºC (-40º to 131ºF) |
| Cooling Method: | Forced Convection |
| Brand: | VICPAS |
| Model Number: | SP3403 |
| Warranty: | 365 Days |
Related Control Techniques Unidrive SP Part No. :
| Control Techniques | Description | Inventory status |
| Unidrive SP | Description | Inventory status |
Control Techniques Unidrive SP HMI Manuals PDF Download:
FAQ:
Question: Can I still use my HMI if the shell is cracked but the electronics work fine?
Answer: Technically yes in the short term, but we do not recommend it. A cracked enclosure exposes internal components to dust, moisture, and physical damage, and may create sharp edges that pose a safety risk to operators. Replacing the shell is the safer, more cost-effective option.
Question: How do I distinguish between different Nidec Drives Unidrive SP SP3403 Plastic Case versions if mine looks slightly different from the listing photo?
Answer: Check the model number and production code on the label of your existing HMI. If there have been hardware revisions over the years, the shell design may have minor variations. Send us a photo of your current housing and its label — we can match it to the correct version.
Common misspellings:
SP34003
SP34303
SP3303
SP4303
SP3430
One set:
3871-0047-02 Heatsink Cooling Fan Cover
3871-0044-05 Power Terminal Cover
3871-0045-06 Side Cover
3871-0048-02 Green Badge
3871-0000-09 / 9602-0056 Control Assembly
3871-0001-08 DC Bus Terminal Cover
3871-0008-01 Serial Port Cover
3871-0004-01 Terminal Gland Plate
3871-0034-03 Terminal Cover
3871-0127-00 Terminal Cover Overlay
3871-0050-04 Power Gland Plates
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