Otis 23 UCL Contorller F4C Fusing

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Otis 23 UCL Contorller F4C Fusing #29432 06/08/20 03:45 PM
Joined: Aug 2014 Posts: 18 C cshields stranger
cshields stranger C Joined: Aug 2014 Posts: 18	Anyone know the correct size for the F4C fuse on a Otis 23UCL Controller. I found a 15AMP time delay here on a job and the insulation on the wires associated with this circuit are is begining to crack and melt and the wires were extremely hot. All other fuses on the terminal block are standard 10 AMP. I looked in the other controller on the job and it had a 6A standard fuse. The prints do not say what size fuse it needs. Pictures are attached. Attachments Prints.jpg (138.04 KB, 29 downloads) Fuse block.jpg (136.75 KB, 29 downloads)

Re: Otis 23 UCL Contorller F4C Fusing cshields #29441 06/10/20 05:08 AM
Joined: Nov 2009 Posts: 473 Portland. Oregon Johnny Journeyman
Johnny Journeyman Joined: Nov 2009 Posts: 473 Portland. Oregon	Look on the back of the controller at the fuse block. Otis printed the original value of the fuse there.

Re: Otis 23 UCL Contorller F4C Fusing cshields #29493 06/21/20 01:25 AM
Joined: Jun 2020 Posts: 25 New Zealand C crustyone Kiwi
crustyone Kiwi C Joined: Jun 2020 Posts: 25 New Zealand	F4C fuses will be max 6amp but will depend on the VA of the transformer. What is the device that the TRM is driving.?

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