Reversing Vacuum Contactors

Class 8702 Type W Vacuum Contactors

General Information

Class 8702 Type W Reversing Vacuum Contactor

Class 8702 Type W reversing vacuum contactors are used to switch capacitors, transformers, and electric motors where overload protection is separately provided. Type W reversing vacuum contactors are designed for operation at 600 V, 50/60 Hz.

By design, these contactors are suited for heavy-duty applications in harsh environments. The power contacts are sealed in ceramic tubes, called vacuum interrupters or vacuum bottles, where the air has been evacuated. Arc quenchers are not required because any arc formed between opening contacts is not sustained due to the presence of the vacuum. The arc is extinguished when the current crosses zero after the contacts are opened. Therefore, the arc typically does not survive more than one half cycle. There is one vacuum interrupter or bottle per pole, so a 3-pole contactor has three vacuum interrupters or bottles. The power contacts are not affected by ambient conditions or contamination. This provides for long life and reliable operation in harsh applications.

Altitude—Reversing, Class 8702 Type W

The reversing vacuum contactor is designed to tolerate normal barometric pressure variances up to 6600 ft above sea level. If the contactor is to be used above 6600 ft above sea level, please consult the factory.

Termination Means—Reversing, Class 8702 Type W

The Size 4 reversing vacuum contactor is supplied with line and load side lugs. The Size 5 and 6 reversing vacuum contactors are supplied without line and load side lugs. Class 9999 Type LUW5 and LUW6 lug kits are available for the Size 5 and 6 contactors. These kits include six lugs and the necessary mounting hardware.

Auxiliary Contacts—Reversing, Class 8702 Type W

An auxiliary contact block, Class 9999 Type WX11 with one normally open contact and normally closed contact, is used with Size 4, 5, and 6 vacuum contactors.

Selection Tables—Full Voltage Reversing Vacuum Contactors

NOTE: In the table Class 8702 Full Voltage Reversing Vacuum Contactors (Horizontal Only) 3-Pole Polyphase—600 Vac Maximum—50–60 Hz, replace the three bullets (●●●) in the catalog number with the coil voltage code. Refer to the standard coil voltage codes listed in Coil Voltage Codes. Replacement coils are listed in Replacement Coils for Class 8702 Reversing Contactors.

File E78351

CCN NLDX

File LR60905

Class 3211-04

Auxiliary Contact Ratings—NEMA A600, R300

Description	Voltage	Make	Break
9999WX11, 9999WXO1	120–600 Vac	7200 VA	720 VA
	72–120 Vac	60 A	720 VA
	28–72 Vac	60 A	10 A
	28–300 Vac	28 A	28 VA

Class 8702 Full Voltage Reversing Vacuum Contactors (Horizontal Only) 3-Pole Polyphase—600 Vac Maximum—50–60 Hz

In the table Class 8702 Full Voltage Reversing Vacuum Contactors (Horizontal Only) 3-Pole Polyphase—600 Vac Maximum—50–60 Hz, replace the three bullets (●●●) in the catalog number with the coil voltage code.

Refer to the standard coil voltage codes listed in Coil Voltage Codes. Replacement coils are listed in the table Replacement Coils for Class 8702 Reversing Contactors.

NEMA Size	Enclosed Ampere Rating	Motor Voltage	Maximum Horsepower	Open Style
NEMA Size	Enclosed Ampere Rating	Motor Voltage	Maximum Horsepower	Type
4	135	200	40	WFO3●●●
		230	50
		380	75
		460	100
		575	100
5	270	200	75	WGO3●●●
		230	100
		380	150
		460	200
		575	200
6	540	200	150	WHO3V●●●
		230	200
		380	300
		460	400
		575	400

NEMA Size	Enclosed Ampere Rating	Motor Voltage	Maximum Horsepower	Open Style
NEMA Size	Enclosed Ampere Rating	Motor Voltage	Maximum Horsepower	Type
4	135	200	40	WFO3●●●
		230	50
		380	75
		460	100
		575	100
5	270	200	75	WGO3●●●
		230	100
		380	150
		460	200
		575	200
6	540	200	150	WHO3V●●●
		230	200
		380	300
		460	400
		575	400

Class 8702 Full Voltage Reversing Vacuum Contactors (Horizontal Only) 3-Pole Polyphase—600 Vac Maximum—50–60 Hz

NEMA Size	Enclosed Ampere Rating	Motor Voltage	Maximum Horsepower	Open Style
NEMA Size	Enclosed Ampere Rating	Motor Voltage	Maximum Horsepower	Type
4	135	200	40	WFO3●●●
		230	50
		380	75
		460	100
		575	100
5	270	200	75	WGO3●●●
		230	100
		380	150
		460	200
		575	200
6	540	200	150	WHO3V●●●
		230	200
		380	300
		460	400
		575	400

Replacement Coils for Class 8702 Reversing Contactors

Class 9998—Replacement Coils for Class 8702 Reversing Contactors

Size	Type	Poles	Class and Type	Suffix Number (Complete Coil Number Consists of Class and Type Followed by Suffix Number)
Size	Type	Poles	Class and Type	120 V 110 V	240 V 220 V	480 V 440 V	600 V 550 V
4	WF	All	9998WF	120	240	480	600
5	WG		9998WG	120	240	480	600
6	WH		9998WH	120	240	480	600

Vacuum Contactor Kits

Class 9999—Vacuum Contactor Kits

Use With		Kit Description	Catalog Number
Type	Size	Kit Description	Catalog Number
WF–WH	4–6	Auxiliary Contacts, Non-Convertible 1-N.O. and 1-N.C. Isolated Contacts	9999WX11
WF	4	Coil Circuit Auxiliary Contacts1-N.O. and 1-N.C. Isolated Contacts, Delayed Break 1-N.C. Isolated Contact	9999WCX11
WG–WH	5–6		9999WLX01
WG	5	Lug Kits (6) lugs included	9999LUW5
WH	6	Lug Kits (6) lugs included	9999LUW6

Reversing Vacuum Contactors

Class 8702 Type W Vacuum Contactors

General Information

Class 8702 Type W Reversing Vacuum Contactor

Altitude—Reversing, Class 8702 Type W

Termination Means—Reversing, Class 8702 Type W

Auxiliary Contacts—Reversing, Class 8702 Type W

Selection Tables—Full Voltage Reversing Vacuum Contactors

Auxiliary Contact Ratings—NEMA A600, R300

Auxiliary Contact Ratings—NEMA A600, R300

Class 8702 Full Voltage Reversing Vacuum Contactors (Horizontal Only) 3-Pole Polyphase—600 Vac Maximum—50–60 Hz

Class 8702 Full Voltage Reversing Vacuum Contactors (Horizontal Only) 3-Pole Polyphase—600 Vac Maximum—50–60 Hz

Replacement Coils for Class 8702 Reversing Contactors

Class 9998—Replacement Coils for Class 8702 Reversing Contactors

Vacuum Contactor Kits

Class 9999—Vacuum Contactor Kits

Dimensional Diagrams—Reversing Vacuum Contactors

Size 4 Reversing Contactor with Lugs, Class 8702 WF

Size 5 Reversing Contactor without Lugs, Class 8702 WG

Size 6 Reversing Contactor without Lugs, Class 8702 WH