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Key Technical Specifications
| Parameter | Detail |
|---|---|
| Brand / Model | ABB P4LQA HENF209736R0003 |
| Product Family | ABB P4 series |
| Product Type | Panel-mount industrial control accessory |
| Power Requirement | None (passive mechanical component) |
| Signal I/O | None |
| Communication Interfaces | None |
| Installation | Panel-mount in control cabinet / operator panel |
| Operating Temperature | Typically −25 to +70 °C (application-dependent) |
| Dimensions / Weight | Compact unit; confirm exact outline from ABB datasheet |
| HS Code | 8538.90 (parts for electrical control/switchgear) |
| Origin | Switzerland (per supplier listing) |
| Warranty | Typically 12 months for tested/new surplus units |
Product Introduction
If you have ever pulled a spare off the shelf only to find it does not physically fit the cutout, you already know why panel accessories matter. The ABB P4LQA HENF209736R0003 is not a fancy controller. It is a P4-family panel-mount component used in ABB operator panels and control stations.Engineers buy this part when the original panel accessory is missing, cracked, worn, or mismatched during a retrofit. It is mechanical, passive, and simple, which is exactly why it needs to be right. Wrong mounting dimensions or an incorrect revision can waste an entire outage window.
Quality SOP & Tech Pitfalls
The Lab Report (SOP)
- Visual and counterfeit check against ABB labeling conventions.
- Mechanical inspection of housing, mounting points, and sealing surfaces.
- Dimensional check against known P4 family references where available.
- Photo documentation of label, revision, and condition.
- Anti-static packaging and traceable lot recording.
The Engineer’s Warning (Pitfalls)
Do not assume “P4” means interchangeable. P4LQA HENF209736R0003 must match the panel cutout, mounting pattern, and revision. I have seen teams install the wrong panel accessory and spend two hours chasing an electrical fault that was never electrical. Also, ignore the online listings calling this a PLC or CPU. This part is described as a passive P4 panel accessory, not an active controller.
Installation & Configuration Guide
- Pre-Installation
⚠️ De-energize the panel. Verify lockout/tagout. Photograph the existing component and its mounting position. - Removal
Remove fasteners carefully. Note gaskets, spacers, and sealing surfaces. Do not force the component out if it binds. - Installation
Confirm the new P4LQA HENF209736R0003 matches the old part’s outline and mounting holes. Reuse seals only if undamaged. Tighten fasteners evenly and to ABB panel guidance. - Verification
Since this is a passive accessory, verify mechanical fit, alignment, sealing, and labeling. Restore power only after the panel enclosure is properly closed.
Compatible Replacement Models
- ✅ P4LQA HENF209736R0003 (same order code): Direct replacement if mounting dimensions and revision match.
- ⚠️ Other ABB P4 family accessories: May fit mechanically, but panel cutout, depth, and fastener pattern must be verified against the OEM drawing.
- ❌ Generic “P4” PLC/CPU modules: Not compatible. This part is not an active controller.
Frequently Asked Questions (FAQ)
Is this a PLC or CPU module?
No. The most specific available description lists it as a passive P4 panel-mount accessory, not a PLC.Can I substitute any ABB P4 part?
Not safely. P4 covers a family of components. You must confirm cutout size, mounting pattern, depth, and revision.Does it need wiring or firmware?
No. It is a passive mechanical panel component.Is it still in production?
Treat it as legacy/obsolete unless ABB confirms otherwise. Most stock comes from surplus channels.What warranty should I expect?
Typically 12 months for new or tested surplus units. Confirm this in writing before payment.What should I send for verification?
Send a photo of the installed component, the panel cutout, the original label, and your order code. That prevents a costly wrong-shipment.
