Grundfos SL Series, SLV Series Wiring Diagrams

EFFECTIVE DATE: March 27,2019File Name: Wiring Diagram-SL-SE.pdf Rev 3/27/2019

Wiring Diagrams for Small (1.5-15 HP)

SL/SLV pumps

61R-3 phase, 230/460V, 60Hz without WIO (Water-in-Oil) Sensor:

Fig. 2 Standard version with Thermal
Switches and Moisture Switch wired
in low-voltage (delta) connection.

Fig. 3 Standard version with Thermal
Switches and Moisture Switch wired
in high-voltage (star) connection.

• Connect 230V pumps using the low-voltage (delta) connection.

• Connect 460V pumps using the high-voltage (star) connection.

Fig. 1 Wiring Diagram, 10 core cable.

EFFECTIVE DATE: March 27,2019File Name: Wiring Diagram-SL-SE.pdf Rev 3/27/2019

Wiring Diagrams for Small (1.5-15 HP)

SL/SLV pumps

61R-3 phase, 230/460V, 60Hz with WIO (Water-in-Oil) Sensor:

• Connect 230V pumps using the low-voltage (delta) connection.

• Connect 460V pumps using the high-voltage (star) connection.

Fig. 4 Sensor version with Thermal

Switches, PT 1000 Resistor, Moisture

Switch and Water-in-oil (WIO) sensor
wired in low-voltage (delta) connection.

Fig. 5 Sensor version with Thermal
Switches, PT 1000 Resistor, Moisture
Switch and Water-in-oil (WIO) sensor
wired in high-voltage (star) connection.

Fig. 1 Wiring Diagram, 10 core cable.

EFFECTIVE DATE: March 27,2019File Name: Wiring Diagram-SL-SE.pdf Rev 3/27/2019

60J-3phase, 208V, 60Hz without / with WIO (Water-in-Oil) Sensor:

Fig. 7 Standard version with Thermal

Switches and Moisture Switch without WIO
(Water-in-Oil) Sensor.

Fig. 8 Sensor version with Thermal
Switches, PT1000 resistor and Moisture

Switch with WIO (Water-in-Oil) Sensor.

• Connect 208V as a Direct Online (DOL) connection.

Wiring Diagrams for Small (1.5-15 HP)

SL/SLV pumps

Fig. 6 Wiring Diagram, 7 core cable, Direct Online (DOL).

EFFECTIVE DATE: March 27,2019File Name: Wiring Diagram-SL-SE.pdf Rev 3/27/2019

Wiring Diagrams for Medium (12-42 HP)

SL/SLV-SE/SEV pumps

60S/61R/61G - 3 phase, 208-230/460V, 60Hz-with Thermal switches / PTC sensors

Fig. 10 Wiring Diagram for 60S/61R, 3 X 208/230V Delta Start.

Fig. 11 Wiring Diagram for 61R/61G, 3 X 460V Star Start.

Reference

Thermal switch

/PTC sensor

Wiring Diagrams

• Connect 208/230V pumps using the low-voltage (delta) connection.

• Connect 460V pumps using the high-voltage (star) connection.

Fig. 9 Wiring Diagram, 12 wire cable.

DOL Starting in

Case of 230V

DOL

Starting in

Case of

460V

EFFECTIVE DATE: March 27,2019File Name: Wiring Diagram-SL-SE.pdf Rev 3/27/2019

Wiring Diagrams for Medium (12-42 HP)

SL/SLV-SE/SEV pumps

Fig. 14 Standard /Explosion Versions with Sensor Version 1.

Fig. 15 Standard /Explosion Versions with Sensor Version 2.

Fig. 12 Standard / Explosion Version with

Thermal switches.

Fig. 13 Standard / Explosion Version with

PTC Sensors.

Thermal switch & PTC sensor Wiring Diagrams

EFFECTIVE DATE: March 27,2019File Name: Wiring Diagram-SL-SE.pdf Rev 3/27/2019

Fig. 17 Wiring Diagram for EMC cable version with Thermal
Switches and Moisture/Leakage Switches Direct Online (DOL)

Connection for Pump with EMC cable. Main supply voltage must be
communicated at time of order as pump will be wired at the factory.

Fig. 16 Wiring Diagram, 8 wire,
Direct Online (DOL)

Wiring Diagrams for Medium (12-42 HP)

SL/SLV-SE/SEV pumps