Review Compressor electric spec

[marc.collin]

hi

Tuxing TXEDM043 / HPDAVV.

Spec see not normal

2.2kW = 2200W
110V*27A = 2970W

habitually 2200w we can use a 20A breaker, for a 2970W we need a 30A.



thank

 

[Whitrzac]

Motors are more efficient at 220v.

I run mine off a 20a breaker. It will trip a 15a after 1-2min.

 

[broncobowsher]

2.2kw = 3HP (746W per HP). That is the motors output rating.
Stated as 83% efficient.
2970 x 83% = 2465 A lot closer. Put some rounding errors on the values and it adds up. A not very efficient 3HP motor that sucks 3kw of electricity and makes about 700 watts in pure waste heat.

 

[BRT]

Motors are more efficient at 220v.

I run mine off a 20a breaker. It will trip a 15a after 1-2min.

Legally needs a 35 amp per NEC and #8 wire. Allowed to run continuously at 80% of breaker and wire, 27/.80=33.75 amps.

 

[broncobowsher]

Legally needs a 35 amp per NEC and #8 wire. Allowed to run continuously at 80% of breaker and wire, 27/.80=33.75 amps.

You are mixing specs. The post you are commenting about is for 220V. But the specs you are discussing are from a 110V data plate. Not saying your numbers are wrong, just keep the reference materials paired correctly.

 

[Whitrzac]

"Legal" does not apply to janky China compressor haha

 

[BRT]

You are mixing specs. The post you are commenting about is for 220V. But the specs you are discussing are from a 110V data plate. Not saying your numbers are wrong, just keep the reference materials paired correctly.

So you believe that the NEC allows 110v continuous loads to be over 80%? Please give a reference.

 

[broncobowsher]

So you believe that the NEC allows 110v continuous loads to be over 80%? Please give a reference.

No. I am pointing out you are mixing comments about 220V with a data plate for a 110V motor.

 

[BRT]

No. I am pointing out you are mixing comments about 220V with a data plate for a 110V motor.

I'm not talking about 220 at all because the motor is 110 volt, 27 amps. Has to be on a breaker and with wire rated at 34 amps or above.

 

[broncobowsher]

I'm not talking about 220 at all because the motor is 110 volt, 27 amps. Has to be on a breaker and with wire rated at 34 amps or above.

But you replied to a comment about 220V Review - Compressor electric spec