Sumitomo Cyclo BBB4 - Motor Protection; U.S. Standard Motors Motor Wiring Method

Operation & Maintenance Manual 41
Cyclo® BBB4
Cyclo® BBB4
Motor Wiring Method
• Foradditionalinformationpleaserefertothemotorname
plate.
• Duetochangesindesignfeatures,thisdiagrammaynot
always agree with that on the motor.
• Insuchcases,connectiondiagramfoundinsidetheconduitbox
of the motor should be used.
1
Based on motor power, determine if motor is WYE or DELTA type
2
Wire the motor to the power source using the correct connection type:
Motor Wiring, continued
Motor Protection, Motor Wiring Method
Line 575V 60Hz
Line 115V 60Hz
Line 230V 60Hz
Line 208/230V 60Hz Line 460V 60Hz
Figure 5. Three-Phase DELTA connection Motor
Figure 7. Single-Phase Motor, 115/230V, 60Hz
Line 208/230V 60Hz
Line 460V 60Hz
Figure 4. Three-Phase WYE Connection Motor
Figure 6. Three-Phase Motor, 575V, 60Hz
Motor
HP (kW) x P
Standard AF-Motor EP.NA-Motor
Non CSA CSA Non CSA CSA UL/CSA/CE
1/8 (0.1) x 4
WYE WYE
WYE
WYE
1/4 (0.2) x 4
1/3 (0.25) x 4
1/2 (0.4) x 4
3/4 (0.55) x 4
1 (0.75) x 4
WYE
1.5 (1.1) x 4
2 (1.5) x 4
3 (2.2) x 4
5 (3.7) x 4
DELTA
7.5 (5.5) x 4
DELTA
DELTA DELTA
DELTA
10 (7.5) x 4
15 (11) x 4
20 (15) x 4
25 (18.5) x 4
30 (22) x 4
40 (30) x 4
—
50 (37) x 4
60 (60) x 4
— —
75 (56) x 4
Table 36. Typical 230/460V, Three-Phase Wiring
Configuration by Motor Type
Motor Protection
•Useamoldedcasecircuitbreakerforprotectionagainstshortcircuit.
•Useanoverloadprotectiondevicethatprotectstheunitagainstvoltagesurges.
U.S. Standard Motors