Hot sale reasonable price Automatic Transfer Switching Equipment-FTQ5 for Maldives Manufacturers


Technical data

Product illustration

Tripping characteristic

Exterior and dimensions

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Model: FTQ5-125 FTQ5-250 FTQ5-630
Rated current (A): 16,20,25,32,40,50,63,80,100,125 140,160,180,200,250 315,350,400,500,630
Pole: 3,4
Rated operational voltage: AC400V/50Hz
Rated insulation voltage: 800
Rated impulse withstand voltage Uimp(KV): 8
Connecting and breaking capacity: 10Ie
Rated short-time withstand current: 10KA/200ms 10KA/200ms 25KA/200ms
Operating position: Normal power on,backup on,Normal and backup off
Operating transfer time: ≤1.5
Electric class: PC
usage category: AC-33B

A brief tutorial on bridging an amplifier (QSC PLX). This method of bridging can apply to other current professional amplifiers as well. However, not all amplifiers support a bridged mode.

A reference is made to +1 and -1 when viewing the binding posts – this references the use of Speakon connectors on the speaker side (not the amplifier side).

I purposely wired this 300A fuse to 15′ of 8GA wire and a 400Ah LiFePO4 lithium battery bank for illustrative purposes only.

I am a HUGE proponent of over current protection for battery banks and seen too many examples of boats burned due to lack of over current protection.. The ABYC allows for an “exemption” of fusing on “starting circuits” but there is lots of gray area and still you have the potential for dead short circuits.

Most small engine starting circuits, diesel or gas, can easily be fused to protect the wire and prevent “nuisance trips”…

This illustration is NOT to suggest you fuse 8GA wire with a 300A fuse then connect it to your boat but to show that dead short circuits, what we are trying to protect the WIRE from, will still instantly blow the fuse even when the wire is multiple sizes too small.


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