Calculated Industries 5070-B Pocket Reference Guide User Manual

Page 31

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background image

P

ocket

R

efeRence

G

uide

— 31

(cont’d)

KEYSTROKE

DISPLAY

 

0.

1. Find Equipment Ground Wire Size:

  

(EqGrnd)

EQPG 10 Cu

WIRE SIZE

2. Find Aluminum size:

EQPG 8 AL

WIRE SIZE

fuse anD CIRCuIT

bReaKeR sIZe

Fuse and Breaker sizing is

determined by NEC Table 430.52.

Once the Motor Type is defined

via   , a Full-Load Current

amperage value can be used to find

the Fuse Breaker Sizes.
What is the Dual Element Fuse

size for a 230 Volt, 3-Phase, 50 HP

Induction motor?

KEYSTROKE

DISPLAY

 

0.

1. Set to 3-Phase:

 

(3Ш)

3 Ph

2. Enter Volts:

   

VOLT 230.

3. Enter HP:

  

IND* 50. hP

* Press   until

iND is displayed in the

upper left area of the display.

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