Electrical Connections (AC Models)
Electrical Connections (AC Models)
To avoid injury from fire, explosion, or electric
shock, all electrical wiring must be done by a
qualified electrician and comply with all local codes
and regulations.
Follow the instructions in the motor manufacturer’s
manual. Wire size, fuse size, and other electrical
devices must comply with all local codes and
regulations. The motor must be wired to the VFD.
Wire Connections at the Variable
Frequency Drive (VFD)
Follow the instructions in the VFD manufacturer’s
manual. If you purchased an optional Graco VFD
(PN 16K911 or 16K912), detailed installation and
connection information is provided in the manual that
ships with the VFD.
NOTICE
To avoid equipment damage, do not plug the motor
directly into a wall socket.
Wire Connections at the Standard
Motor
Install the wiring at the motor as follows:
1. Open the motor’s electrical box.
2. Install wiring system with proper liquid-tight
connections in one of the ports at the side of the
motor box.
3. Connect the green ground wire to the ground
screw.
4. For 460V Wiring: The motor comes wired for
460V. If this is the voltage you want, the existing
wiring can remain as it is. Connect power wires
L1 to U1, L2 to V1 and L3 to W1, as shown.
W2
U2
V2
L2
L3
L1
U1 V1 W1
W3 U3 V3
Figure 3 Connections for 460V Wiring
5. For 230V Wiring: Move the black wire (U3), the
red wire (V3) and the blue wire (W3) as shown.
Bridge W2, U2, and V2. Then connect power
wires L1 to U1, L2 to V1 and L3 to W1.
W2
U2
V2
L2
L3
L1
U1 V1 W1
U3 V3 W3
Figure 4 Connections for 230V Wiring
6. Torque terminals to 20 in-lb (2.3 N•m).
7. Close the motor electrical box. Torque the
screws to 20 in-lb (2.3 N•m).
334188P
17
Tel: 866-777-6060
Fax: 866-777-6383
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910
