MOTORS AND MOTOR STARTER AMP RATING

[WA_Sparky]

Hello all,

I'm currently designing a fuel station and putting my panel schedules together. My turbine pumps for each tank and compartment are (208 3phase) 5hp motors. Which according to NEC should be around 17.5A which manufacturer agrees. The specific Magnetic starter for 3-phase control relay is showing "Relay coil Amp consumption when pump is operating: 80 Amps."

How can i have a relay that accepts 3-5HP motors that draws 4 x more amps than the motor itself will draw?
Only one motor per starter. Mind blown..
https://franklinfueling.com/americas/sps/product/5125/en/stp-cb-35-magnetic-starter#Specs

Any comments would be helpful!

Thanks,

 

[Besoeker3]

Hello all,

I'm currently designing a fuel station and putting my panel schedules together. My turbine pumps for each tank and compartment are (208 3phase) 5hp motors. Which according to NEC should be around 17.5A which manufacturer agrees. The specific Magnetic starter for 3-phase control relay is showing "Relay coil Amp consumption when pump is operating: 80 Amps."

I have dealt with motors up to several MW - 80A in a relay coil? No way.

 

[ptonsparky]

Typo.

Even .8 amps seems high though.

 

[MrJLH]

Hello all,

I'm currently designing a fuel station and putting my panel schedules together. My turbine pumps for each tank and compartment are (208 3phase) 5hp motors. Which according to NEC should be around 17.5A which manufacturer agrees. The specific Magnetic starter for 3-phase control relay is showing "Relay coil Amp consumption when pump is operating: 80 Amps."

How can i have a relay that accepts 3-5HP motors that draws 4 x more amps than the motor itself will draw?
Only one motor per starter. Mind blown..
https://franklinfueling.com/americas/sps/product/5125/en/stp-cb-35-magnetic-starter#Specs

Any comments would be helpful!

Thanks,

May be 80VA?

 

[Julius Right]

In my opinion if it is NEMA 0 SIZE then coil inrush current is 0.5 A and sealed 80 mA[0.08 A):lol:

 

[Jraef]

No idea what mistake they made, but it's a mistake.

Siemens 3RT contactor for 5HP 480V, 120VAC coil, coil inrush is 36VA, sealed is 5.9VA.

 

[RD35]

I'm guessing it should read "80 mA" For sure there is some kind of type-o involved!