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Phone: +86 16626708626Description
Key Technical Specifications
- Model: SA478-11G-4300
- Board family: SA 478-1
- Product type: Printed circuit boardaeliy
- Application: Marine automation / tacho side control
- Weight: 190 g
- Condition seen in market listings: Used or surplus
- Availability: Limited, distributor stock variesaeliy
- Replacement note: Verify connector, revision, and board markings before ordering
Product Introduction
NORIS SA478-11G-4300 is a printed circuit board used in marine control applications, and market listings identify it as part of the SA 478-1 family. It appears in seller descriptions as a NORIS tacho-related PCB, with a listed weight of about 190 g.
This is the kind of part buyers usually source as a direct legacy replacement, so exact model matching matters more than generic similarity. Check the board markings, connector layout, and installed revision before you commit to a purchase.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Board not recognized by the system | Wrong revision, bad connector contact, or dead board | ✅ High | Inspect board markings and measure supply at the connector | Reseat the board and verify the exact part number first |
| Intermittent operation | Cracked solder joint, vibration, or oxidized pins | ✅ High | Lightly tap-test the card and inspect the edge connector | Clean contacts and replace if the fault returns |
| No output or no indication | Upstream signal missing or board failure | ✅ High | Measure input signal at the board terminals with a meter | Confirm the upstream device before condemning the PCB |
| Overheating | Cabinet heat, shorted component, or overload | ✅ Medium | Check board temperature after a short run and inspect for discoloration | Stop operation and inspect for external shorts |
| Works on bench but not in machine | Wiring, harness, or system interface mismatch | ✅ High | Compare installed wiring against the removed board | Do not assume the PCB is bad until the harness is verified |
| Visual burn mark or corrosion | Electrical damage or moisture exposure | ✅ High | Examine both sides under bright light | Replace the board and check the enclosure environment |
Contact technical support with clear photos of both sides of the PCB, the label, connector pins, and any diagnostic logs if the fault is still unclear.
- SA478-11G-4300
- SA478-11G-4300
Frequently Asked Questions
Q: What is the NORIS SA478-11G-4300?
A: It is a NORIS printed circuit board used in marine automation hardware. Seller listings connect it to the SA 478-1 family and describe it as a PCB for tacho or control use.
Q: Is this part new or used?
A: Market listings show used stock, and some sellers may treat it as surplus inventory. Always confirm condition before ordering
Q: Is it a direct replacement for SA478 variants?
A: Only if the exact model, board revision, and connector layout match. A similar part number is not enough for a safe swap.
Q: Why does the price vary so much?
A: Because this is a legacy board and supply is uneven. Some sellers list it as used stock, while others price it as a rare replacement part.
Q: Can I install it without checking the old board first?
A: I would not. Photograph the old board, note every connector, and compare the markings before removal. That prevents the usual mismatch headaches.
Q: What usually fails on this kind of board?
A: Loose connectors, vibration damage, corrosion, and component failure are the usual suspects. In many cases, the fault is actually in the harness or upstream system, not the PCB itself.
Q: Is this an obsolete part?
A: Practically speaking, yes, it behaves like a limited-stock legacy item in the market. Plan for availability risk and verify the exact spare before the machine is down.
