Reed switches as cell fuses
Table of Contents
1. Long term current capability (LTC)
Procedure:
- test the reed switch
- turn on current
- wait Time
- turn off current
- test the reed switch
| Article no | Test | Before | Current [A] | Time [s] | After | Notes |
|---|---|---|---|---|---|---|
| 1 | LTC | OK | 1 | 600 | OK | |
| 1 | LTC | OK | 2 | 600 | NOK | The reed switch became NO, the magnetic sleeve no longer activates it |
| 2 | LTC | NOK | DOA | |||
| 3 | FCC | OK | 5 | 600 | NOK | heat generated, sleeve swelling observed after 1 min, case melts, smoke appears after 3 min, hole appears in case and sleeve after 4 min, constant smoke after 5 min. After test the reed is shorted (doesn't disconnect on magnetic field) |
2. Flash current capability (FCC)
Procedure:
- test the reed switch
- turn on current
- wait Time or until circuit breaks (which is the expected result)
- turn off current
- test the reed switch
| Article no | Test | Before | Current [A] | Time [s] | After | Notes |
|---|---|---|---|---|---|---|
| 4 | FCC | OK | 17 | < 10 | NOK | The reed switch became NO after < 10 s, the magnetic sleeve no longer activates it. |