Model D4153

3 HP 220V Magnetic Switch

Instruction Sheet

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220 Volt

Single-Phase

Power Source

Electrocution or fire could occur if this switch is not installed or adjusted by a qualified electrician!

Contactor TECO CU-16

(220V Coil)

COLOR KEY

BLACK

GREEN

RED

YELLOW

Bk

Gn

Rd

1

L1

3

L2

5

L3

13

NO

TECO

CU-

16

2

T1

4

T2

6

T3

14

NO

NO

53

ON

54

NO

Ground

Thermal Overload

Relay TECO RHN-10K

(17–24A)

TRIP IND.

TEST

97 NO 98 NO 95 NC

O R

OFF RESET

A

M

96 NC

2

T1

4

T2

6

T3

Figure 1. Model D4153 magnetic switch.

3 HP 220V Motor

IMPORTANT: This magnetic switch toggles a motor ON and OFF, and helps provide thermal overload protection 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 current 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.

D4138 Magnetic Switch Instructions

Thermal Relay Overload Amp

Adjustment Dial: Turn this dial to the amperage setting specified by the motor manufacturer. Typically, this setting is

100–110% of the amperage load listed on the motor data plate.

Please note that turning this dial has no effect on increasing motor horsepower. If turned too high, the motor can overheat and be damaged before the relay trips.

Trip Indicator: If this window turns yellow, the thermal relay has tripped.

Manual Contactor Override

Lug: When pushed, the contactor is manually closed for troubleshooting purposes only.

ON Button: When pushed, power is sent to the magnetic field coil, closing the contactor and sending power to the motor.

Manual/Auto Reset Lever: In the up position, the thermal relay is in manual reset mode.

This means you must re-install the outside cover and push the red OFF button, then push the green ON button to reset the thermal relay. In the down position, the thermal relay will automatically reset when it has cooled.

Manual Trip Test Lever: If the thermal relay function is in question, run the motor and use a wooden toothpick to slide the yellow test lever to the left. If the motor shuts off, the thermal relay has tripped and is functional.

Reset Button: When pushed, the thermal relay is reset, clearing the yellow trip indicator window.

OFF Button: When pushed, the current going to the magnetic field coil is cut, which opens the contactor and cuts power to the motor.

Parts Breakdown

104

105

109

111

112

101

110

REF PART # DESCRIPTION

101 XD4115101 SWITCH BOX

102 XD4115102 SWITCH BOX COVER ASSEMBLY

103 XD4153103 DATA LABEL HUFB-16KK

104 XD4118104 CONTACTOR TECO CU-16 220V

105 XD4115105 FIELD SWITCH TECO CNA-1

106 XD4153106 OL RELAY TECO RHN-10K 17-24A

107

108

106 102

103

REF PART # DESCRIPTION

107 XD4115107 CONTACTOR RETAINER

108 XPS106M PHLP HD SCR M3-.5 X 10

109 XD4115109 CAPTURED GROUND SCR M4-.7 X 10

110 XPS10 PHLP HD SCR 10-24 X 1-1/2

111 XD4115111 LIQUID-TIGHT STRAIN RELIEF PG-16

112 XD4115112 RUBBER SEAL

#12948TS

COPYRIGHT © JUNE, 2010 BY WOODSTOCK INTERNATIONAL, INC.

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT

THE WRITTEN APPROVAL OF WOODSTOCK INTERNATIONAL, INC.

Printed in Taiwan

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