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How you determine correct size varistor for protect system which work with 220v AC?
You use varistor wich has the max voltage for that aplication example:vacuumcleanermax allowed voltage is 240v ac so you chose aprox. 250 V varistor.
What size amp breaker you need for a ac and a heater unit?
The sizing of a breaker is dependant upon the size of the wire it protects. The size of the wire is dependant upon what the load current in amps is. Without the amperage and wattage and the voltage of the appliances an answer can not be given. W = A x V, Amps = Watts/ Volts.
Can you use an AC adaptor - 3v dc 800 ma to replace AC adaptor - 9 v DC 250 ma?
no, must be 3v
Can you use a 12 v rated wire carrying a 24 v?
A wire rated to 12 v can be used for carrying a 12 v current if it has the same amperage. It is the amperage or the volume of electricity which determines the size of the wire rather than its voltage.
How do you determine correct size varistor for protect system which work with 220 v?
How i determine correct size varistor for protect system which work with 220 v AC?
What wire do you use for 240 V 50 Hz?
You need to mention the current or connected load to define the size of the wire
A 100W 250 V 200W 250V is connected in series across a 500V AC which bulb will fuse first?
both will be fused.
What gauge wire for 220 volts?
You need to know the amperage to size the wire. For 220 V at 20 A you would need 12 AWG. At 220 V at 30 A 10 AWG.
How do you calculate appropriate circuit breaker in the circuit for ac voltages?
It is depending on : whether the ac power is 110 or 220 v , length of wire/cable from mains to CB(circuit breaker),diameter of wire/cable consumption of circuit ( How much watts the circuit consume) i.e load .. don't forget this relation I=V/R . where I= current (amps) , V=voltage & R= resistance also I=P/V where P is power in watts . note that less voltage or thinner wire may affect the real rating of CB
What is the Size of engine in a dodge 250 van?
Could be either the 5.2L or the 5.9L both are V-8's
What size wire do i need to feed a single phase V primary and a V secondary fed from a 150 amp circuit breaker?
Information is incomplete. You need to know the load in Watt or Kilowatt and the voltage on the secondary side to determine the load current, on which the size of the wire is designed.
What size wire do you need to go 150 feet using a 20 amp 120 v?
12 AWG.
