WS-12-250-DC Max Power Consumption

[lligetfa]

Based on that info and provided the switch connects directly to the batteries, inrush will be handled by the batteries. The 192W supply will have 76W available to charge the batteries while providing 116W to the load.

If the batteries are let to run down too far, you will need more watts to recover them than the supply provides at 75W.

[Beaman]

The reason for using the WS-12-250-DC switch is for its wide range of voltage. I would love to use the WS-12-DC with a TP-BC48-300 but than I need a battery bank running 48v which means at least four 12v deep cycle batteries which I do not have room for in my box. The reason for using the Tycon UPS power supply system is because it provides instant cut over in the event of an extended power outage and I only need two batteries with my current setup. I would have to swap my IP 65 box to something bigger but, unfortunately that is not feasible since our stuff is in the public right-of-way, so we are limited in space.

On another note I did try it anyways. My setup included a Integra WS, seven Ubiquiti AirPrism radios, and one nanobeam 5 AC. I had two 12V deep cycle batteries in parallel plugged into the" battery" side terminal of the TP-BC12-300. I plugged the Netonix into the "load" side terminal of the Tycon UPS. After plugging in the Integra WS and about 7 AirPrism radios the WS-12-250-DC switch started to power cycle. It power cycled about seven times before I unplugged it because I saw a puff of smoke come from the switch. None of the radios were damaged and the switch still powers up (although I need to test it vigorously before it is redeployed).

I am wondering after everyone's great info (especially Sirhc's) if i should try running power cables from the batteries directly to the switch and just let the Tycon UPS power the batteries? I could also run power cables from the "battery" side terminal of the UPS and also have the battery power cables plugged into the "battery" side terminal of the UPS. What does every one think?

[sirhc]

I would put the 2 batteries in series to provide 24V then hook the WS-12-250-DC to the batteries.

I would then use a SMART charging unit like the Minn Kota 2 bank charger. Minn Kota is built like a tank to handle extreme temperatures, most are waterproof, and they are smart chargers so they charge each battery separately which allows you to hook them in series or parallel.

I would used GOOD AGM batteries like Optima Blue Tops but that is me.

The SMART DC switches we make are designed to hook DIRECTLY to the battery bank as the batteries can handle the high Amperage demand of the power supplies. Remember as the voltage of the batteries drops due to power outage the watts being drawn stay the same but the Amperage goes UP so always use heavy wire from from the batteries to the switch.

Assume if a WS-12-250-DC that is 250 watts and the switch will operate down to 9V if allowed to so the cable sized used should be sufficient to handle the load and always use an inline fuse.

250 watts / 9 volts = 28 Amps so I would use a wire capable of 30+ Amps and use an inline fuse of 30 Amps

The whole idea of the SMART DC switches is they can in an emergency drain the battery bank far below where you normally could as they operate down to 9V. If using four 12V batteries in series that would completely drain the battery bank if needed in an emergency. Keep in mind when you discharge a battery to DEAD you need 10A per battery to recover it which the Minn Kota chargers can provide as they charge each battery separately.

https://www.westmarine.com/buy/minn-kot ... gIwRfD_BwE