Electrical Connections (AC Models)
Wire Connections at the ATEX Motor
Install the wiring at the motor as follows:
1. Open the motor’s electrical box.
2. Install wiring system with proper connections to
the motor electrical box.
3. Connect the green ground wire to the ground
screw.
4. For 415V Wiring: Bridge as shown, then connect
wire L1 to U1, L2 to V1, and L3 to W1.
W2
U2
V2
L2
L3
L1
U1 V1 W1
Figure 5 Connections for a 415V Wiring
5. For 240V Wiring: Connect wire L1 to U1, L2 to
V1, and L3 to W1. Bridge as shown.
W2
U2
V2
L2
L3
L1
U1 V1 W1
Figure 6 Connections for a 240V 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).
Wire Connections at the
Explosionproof Motor
Install the wiring at the motor as follows:
1. Open the motor’s electrical box.
2. Install wiring system with proper connections to
the motor electrical box.
3. Connect the green ground wire to the ground
screw.
4. For 460V Wiring: Connect wire L1 to T1, L2 to
T2, and L3 to T3, and bridge the other wires, as
shown.
T1
T2
T3
L1
L2
L3
T4
T7
T5
T8
T6
T9
Figure 7 Connections for 460V Wiring
5. For 230V Wiring: Bridge the wires as shown.
Then, connect L1 to T1/T7, L2 to T2/T8, and L3
to T3/T9.
T1
T7
T2
L1
L2
L3
T8
T3
T9
T4
T5
T6
Figure 8 Connections for 230V Wiring
6. Option: Connect thermostat wires P1 and P2 to
external overload detection. Thermostat is NC
(normally closed).
7. Close the motor electrical box. Torque the
screws to 20 in-lb (2.3 N•m).
18
334188P
Tel: 866-777-6060
Fax: 866-777-6383
Springer Pumps, LLC
Website: www.springerpumps.com
Int'l: +001 267 404 2910