Jet JCP-803 Operating Instructions And Parts Manual page 11

INSTALLATION INSTRUCTIONS (CONTINUED)
Grounding
This product must be grounded. Grounding reduces the risk of electrical shock by providing an escape wire for
the electric current if short circuit occurs. This product must be installed and operated with a power cord or cable
that has a grounding wire.
Breakers and Fuses
The entire electrical system should be checked by a certified electrician. Time delay breakers and fuses are
required for this compressor. A tripped breaker or blown fuses may indicate a direct short to ground, high current
draw, improper wiring, incorrect fuse or breaker size and/or type. This needs to be evaluated by a certified
electrician.
Motor Hookup and Starter Installation
Branch circuit protection must be provided as specified in the United States National Electrical Code, Chapter
2, "Wiring Design and Protection." Article 210, using the applicable article "For Motors and Motor Controllers,"
(Article 430, Table 430-1 52).
IMPORTANT: Overload protection is required for all motors. Certain motors have this protection built-in. To
determine if a motor has built-in overload protection, refer to the frame size on the motor nameplate.
Motors with frame size R56HZ, Y56Y or L143T include built-in overload protection. No additional protection is
required. Use Figure 5 wiring diagram.
Motors with frame sizes 184T, 215T, 254T or 284T do not have built-in overload protection. A magnetic starter is
required. Use Figure 5 wiring diagram.
Single Phase
Wiring Diagram
Circuit
Breaker
or Fused
Disconnect
Pressure
Switch
Thermal
Unit
T1
Figure 5 - Motor Starter Wiring Diagram
Improperly grounded electrical components are shock hazards. Make sure all the components
are properly grounded to prevent death or serious injury.
L1 L2
cuit Breaker or
sed Disconnect
Over
Coil
Load
X2
Pressure
T2
Motor
Three Phase
Wiring Diagram
Circuit
Breaker
or Fused
Disconnect
L1
L2
L3
Coil
Coil
X2
Over
Pressure Over
Thermal
Thermal
Load
Load
Switch
Switch
Units (3) Units (3)
T3
T1
T2
Motor
Motor
9