Tsurumi Pump LH Series, Operation Manual

-8-

Connecting the cabtyre cable

Before connecting leads to the terminals, make certain the power supply 

is turned off (circuit breaker, etc.), to avoid electrical shock, shorting, or 

unexpected starting of the pump, leading to injury.

WARNING

Cabtyre cable 

•  If it is necessary to extend the cabtyre cable, use a core size equal to 

or larger than the original. This is necessary not only for avoiding a 

performance drop, but to prevent cable overheating which can result in fire, 

electrical leakage or electrical shock.

•  If a cable with cut insulation or other damage is submerged in the water, 

there is a danger of water seeping into the motor causing a short. This may 

result in damage to the pump, electrical leakage, electrical shock, or fire.

•  Be careful not to let the cabtyre cable be cut or become twisted. This may 

result in damage to the pump, electrical leakage, electrical shock, or fire.

• If it is necessary to submerse the connection leads of the cabtyre cable 

in water, first seal the leads completely in a molded protective sleeve, to 

prevent electrical leakage, electrical shock, or fire.

Do not allow the cabtyre cable leads to become wet.

Make sure the cable does not become excessively bent or twisted, and does not rub against a structure in a 

way that might damage it.

CAUTION

Grounding 

Do not use the pump without first grounding it properly. Failure to ground it 

can lead to electrical shock from an electrical leak or pump malfunction.

Do not attach the grounding wire to a gas pipe, water pipe, lightening arrestor 

or telephone grounding wire. Improper grounding can result in electrical 

shock.

WARNING
CAUTION

Electrical circuit diagrams

Red

Red

White 

White 

White 

Black 

Black 

Green 

Yellow 

Yellow 

U

1 

V

1 

W

1 

S

2 

U

2 

V

2 

W

2 

S

1 

G  S

3 

Miniature Protector 

Coil 

Protector Circuit 

Leak Sensor 

Power · Control Cable 

Power Cable 

Star-delta start 

Do not use the pump if the cabtyre cable is worn or damaged, which can 

result in electric shock, shorting, or fire. 

Connect the leads of cabtyre cable to the control panel terminals as shown in the diagram, being careful not 

to let the leads become twisted together.

CAUTION

U

1 

V

1 

W

1 

U

2 

V

2 

W

2 

S

3 

S

1 

G  S

2 

U

1

-Red 

V

1

-White 

U

2

-Black 

W

1

-Black 

Protector Circuit(Yellow) 

Leak Sensor Circuit(White) 

Protector Circuit(Yellow) 

W

2

-White 

V

2

-Red 

G-Green 

Star-delta start