Ingersoll Rand 80445703 Guide De Démarrage Rapide page 6

FUSES. Refer to applicable local codes to determine the proper fuse
or circuit breaker rating required. When selecting fuses, remember the
momentary starting current of an electric motor is greater than its full
load current. Time delay or "slow-blow" fuses are recommended.
GROUNDING. In the event of an electrical short circuit, grounding
reduces the risk of electric shock by providing an escape wire for the
electric current. Ground terminals are identified with a ground symbol
and/or the letters "G", "GR" or "PE" (Potential Earth).
Ground Symbol
Compressors equipped with motor starters include a ground terminal
inside the starter enclosure. For compressors with single-phase
motors having thermal overload protection and no motor starter, the
ground terminal is located inside the pressure switch. Ground must
be established with a grounding wire sized according to the voltage
and minimum branch circuit requirements printed on the compressor
specifications decal. Ensure good bare metal contact at all grounding
connection points, and ensure all connections are clean and tight.
WARNING
Improper grounding can result in electrical shock and can cause
severe injury or death. This product must be connected to a
grounded, metallic, permanent wiring system or an equipment-
grounding terminal or lead. All grounding must be performed by
a qualified electrician and comply with applicable electric codes.
NOTICE
Verify grounding connections after initial installation and
periodically thereafter to ensure good contact and continuity
has been maintained. Consult with a qualified electrician
or service technician if the grounding instructions are not
completely understood, or if in doubt as to whether the product
is properly grounded.
Starter wiring
A – To/from motor (factory connection)
B – To/from pressure switch (factory connection)
C – To/from power supply (customer connection)
Ground wires not shown for clarity. Equipment must be properly
grounded.
EN-6
RELEASED 05/Apr/2018 15:16:08 GMT
Pressvre Switch Wiring (For Compressors Not Requiring a Starter)
A – To/from motor (factory connection)
B – To/from power supply (customer connection)
Ground wires not shown for clarity. Equipment must be properly
grounded.
IEC POWER CONNECTION AND OVERLOAD
ADJUSTMENT
A = Incoming power leads
B = Existing control circuit wires
C = Contactor
D = Thermal overload
E = Stop/test button
F = Incoming grounding lug (see note 2)
G = Motor leads
H = Reset button & selector switch (set for manual reset)
J = Motor current setting (see note 5)
K = Switch position indicator
L = Coil voltage (see note 1)
M = Incoming power connection (see notes 3 & 4)
1. Confirm that the supply voltage matches the voltage rating of the
2. Connect the power supply to a properly grounded electrical
3. When connecting the incoming power wires to the contactor,
IEC Connection
starter/contactor.
circuit with specified voltage and fuse protection.
ensure that the existing control circuit wires remain under the
terminal pressure plates and are secure after tightening the
screw terminals.
80445703 Rev. H