Grizzly G4571 User Manual

Instructions, Color key

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BLACK
GREEN
RED

COLOR KEY

Bk

Gn

Rd

YELLOW

3

L2

5

L3

13

NO

2

T1

4

T2

6

T3

14

NO

TEST

TRIP IND.

97 NO

98 NO

95 NC

96 NC

2

T1

4

T2

6

T3

O R

54

NO

NO

53

ON

OFF RESET

1 HP 220V Motor

220 Volt

Single-Phase

Power Source

M

A

1

L1

TECO

CU-
16

Ground

Contactor TECO

CU-16 (220V Coil)

Thermal Overload

Relay TECO RHN-10K

(5.5–8.5A)

IMPORTANT: This magnetic switch toggles a motor ON and OFF, and helps provide thermal overload pro-
tection for the motor if the operating temperature gradually increases due to heavy work loads. The thermal
overload relay inside is not designed to cut power in the event of a sudden motor overload or stall. To help
protect a motor from this type of overload, the power supply circuit must be properly sized for the full-load
current rating of the motor.

OPERATION: When pushed, the green ON button on the outside cover of the magnetic switch allows cur-
rent to flow to the magnetic coil, which pulls the contactor closed. The main current then passes through
the thermal overload relay to the motor. If the motor begins to overheat, the relay breaks the magnetic field,
which opens the contactor and cuts current to the motor. The red OFF button manually breaks the magnetic
field, which opens the contactor and disconnects the current to the motor.

Figure 1. Model G4571 magnetic

switch.

Electrocution or

fire could occur if

this switch is not

installed or adjust-

ed by a qualified

electrician!

MODEL G4571

1 HP 2200V MAGNETIC

SWITCH

INSTRUCTIONS

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