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Phone: +86 16626708626Description
2. Product Core Brief
- Model: ABB 086351-003
- Brand: ABB
- Series: HKQCS / Spare Parts Line
- Core Function: Serial pushbutton / panel switch assembly
- Product Type: PWA pushbutton PCB assembly
- Key Specs: PWA, SPB serial pushbutton; ~272 mm length; ~142 mm width
- Condition: New Original / New Surplus
3. Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 086351-003 (legacy) |
| ABB Type Designation | HKQCS PARTS ON LINE |
| Catalog Description | PWA, SPB, Serial Pushbutton |
| Function | Mechanical/electrical pushbutton interface |
| Mounting | Spare-part board assembly |
| Net Depth/Length | 272 mm |
| Net Height | 21 mm |
| Net Width | 142 mm |
| Net Weight | ~0.19 kg |
| Frame Size | Spare Parts |
| Origin | Malta (MT) / China (CN) |
| Equivalent/Updated Part | ABB 086351-004 (replaced/renamed) |
| Commodity Code | 85389000 |
| Usage | Industrial control panel user interface |
Inventory sellers commonly list 086351-003 as an older identifier replaced by 086351-004 in ABB HKQCS spare part catalogs.
4. Product Introduction
The ABB 086351-003 is an industrial serial pushbutton assembly (PWA, SPB) originally used in ABB control panels and automation interfaces. It serves as the human-operator input switch/board that connects to the control system via serial push logic. This assembly was part of ABB’s HKQCS parts on line spare catalog and later superseded by the 086351-004 designation in ABB inventories.
Typically applied in PLC, DCS, or operator panel environments, this pushbutton module is stocked as a spare part for maintenance, repair, and overhaul of legacy ABB automation systems. Verified OEM stock in new or surplus condition reduces risk in field replacements.
- 086351-003
5. Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Pushbutton no mechanical response | Button contacts worn or broken | ✅ High | Manually actuate and feel contact click | Replace PWA pushbutton assembly |
| No signal to control system | Connector/cable seat loose | ⚠️ Medium | Inspect pushbutton connector wiring | Reseat harness and check continuity |
| Erratic behavior / bounce | Dirty contact surface | ⚠️ Medium | Measure with continuity tester during actuation | Clean contacts or replace assembly |
| Panel LEDs not lighting | Power/connector fault | ❌ Low | Measure panel power supply | Fix supply before PWA component replacement |
Field note: Many “non-responsive button” complaints in automation panels are caused by wiring or connector issues, not the pushbutton PCB itself – always check harness continuity and connector seating first.
6. Frequently Asked Questions (FAQ)
Q1: Is 086351-003 still manufactured?
A: No — this older spare part has been succeeded in stock listings by ABB 086351-004, which replaces earlier IDs including Y086351-001 and Y086351-003. Confirm exact fit with panel OEM drawings.
Q2: What does this part do?
A: It’s a serial pushbutton printed assembly (PWA, SPB) — a panel mounted user input pushbutton used in automation and control equipment.
Q3: Can it be used across ABB systems?
A: It’s typically a panel interface pushbutton and can be applied wherever the physical and interface specs match; verify wiring and mounting before installation.
Q4: Why is it cheaper than factory list?
A: Most listings are new surplus or secondary market inventory because this part is no longer in active production.
Q5: What should I check before replacing it?
A: Confirm panel harness connection, mechanical actuation path, and that the replacement assembly’s mounting/connector footprint matches your existing part.
