One Stop Systems
EB3450 | 30
2.9
Connecting to Electrical Outlets
Connect power cords to electrical outlets. When using two 110V power cords it is highly recommended to connect them into two
seperate110V electrical outlets on different circuit lines to prevent electrical overloads. This also applies to a 220/230V power plug. Be
cautious, practice safe and correct methods when powering up your EB3450 expansion unit. Pictures below are different configurations of
supplying power to the expansion unit.
Is it ok to connect two 1200W Power Supply modules to one 120V circuit?
Answer:
110V
220V
15 amps x 110 volts = 1650 watts
15 amps x 220 volts = 3300
20 amps x 110 volts = 2200 watts
20 amps x 220 volts = 4400
30 amps x 110 volts = 3300 watts
30 amps x 220 volts = 6600
120V
230V
15 amps x 120 volts = 1800 watts
15 amps x 230 volts = 3450
20 amps x 120 volts = 2400 watts
20 amps x 230 volts = 4600
30 amps x 120 volts = 3450 watts
30 amps x 230 volts = 6900
Using the above mathematical chart you can only run a single 1200W device on either 15 or 20 amp lines regardless of whether it is 120 or 110
volts. One circuit for each 1200-watt device. The power supplies will support up to a 240V operation for other geographies.
If you have 30 amp, 110 or 120-volt lines you can run two 1200-watt devices. At 230/240V, the PSUs will support up to 1500W of power and
sizing must be done accordingly. At 220V or above, both power supplies may be powered from one circuit, however it is still suggested to run
from separate circuits for redundancy.
WARNING
DO NOT use anything that uses the same amount of watts that your circuit can handle, for example, if you have a 120 volt
outlet on a 15 amp circuit the max for that outlet is 1800, thus you need to stay WELL UNDER that amount. If you use
exactly 1800 watts and the breaker does not trip then the resistance of the wires and connections can heat up causing a
fire. The further from the breaker box the greater the resistance.
volts times amps = watts
watts divided by volts = amps
watts divided by amps = volts
Prior to powering up the system, we recommend that you check your breaker box for the amps for each circuit, commercial buildings or homes
are rated 120 volts (note that double breakers are double the current, if your household voltage is 120 then double breakers are 240 volts)
IMPORTANT
Electrical equipment or appliances require a set amount of volts; you must make sure you plug it into the right voltage.
