Issue
What is its part number of the power fuse of an i2/b3 controller?
Product Line
Andover Continuum
Environment
- Power fuse replacement
- i2 and b3 controllers
- 24VAC supply
Cause
Most controller fuses are not supplied through the factory.
Resolution
Faulty controllers can be repaired through the regular repairs process, but power fuses can be purchased through local suppliers.
The power fuse for the following 24VAC controllers is:
- Type: Surface Mount Fuse
- NANO2® Very Fast-Acting, 448 Series Datasheet
- Ratings:
- 2A Rating: i2/b3867, i2/b3850 series.
- 3A Rating: bCX1, i2/b3810 series, i2/b3800 series, i2/b3600 series.
- 5A Rating: ACX5740, ACX5720
- Note: Fuses are fitted to protect the controllers from damage, when replacing one always replace it with an equivalent rating. Also determine the reason why a fuse has blown before replacing, under normal operation a fuse should never blow.
Additional Information
- CX9702 (115 VA) Main Power Fuse: 250 VAC 1.5Amp
- Outputs: 125 VAC 3.5Amp replaceable
- Inputs/Outputs: Surface mount non-replaceable
- i2/b3814 outputs: see What is the part number of the i2814's output fuse?
Note: The part numbers that used to be listed in iPortal have been removed from this article since they are no longer available from Schneider Electric. The fuses may be obtained from third-party vendors such as Littelfuse or Digikey.
