Eaton Crouse-hinds series Setup guide

NEMA Type 7/9 Disconnect Switch

Installation & Maintenance Information

SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE

IF 1772

APPLICATION

Eaton’s NEMA Type 7/9 Disconnect Switches are suited for Class I, Divisions

1 & 2, Groups B, C, D; Class II, Division 1, Groups E, F, G; Class II, Division 2,

Groups F, G; Class III; and Class I, Zones 1 & 2, Groups IIB + H2, as dened by

the National Electrical Code®as well as in damp, wet or corrosive locations.

Additionally, this series is suitable for NEMA 3, 4, 4X applications. Eaton’s

NEMA Type 7/9 Disconnect should be installed, inspected, maintained and

operated by qualied and competent personnel only.

INSTALLATION

1. Select a mounting location that will provide suitable strength and rigidity

for supporting the Eaton’s NEMA Type 7/9 Disconnect Switch. Weights

and dimensions are listed below.

Figure 1

2. Securely fasten enclosure to the mounting location, and then attach

enclosure into conduit system. Install approved conduit or cable sealing

ttings in all conduit entries within 18 inches (46cm) of enclosure per the

National Electrical Code requirements.

3. For Eaton’s NEMA Type 7/9 Disconnect Switch enclosures furnished

with disconnect switch, please view Step 4. For Eaton’s NEMA Type 7/9

Disconnect Switch enclosures furnished without disconnect switch, select

appropriate disconnect switch from Table 2 below (ordered separately).

a. Using hardware provided, securely mount disconnect switch on

mounting plate with “Line” terminals on top and “Load” terminals on

bottom. Use existing holes in mounting plate; please refer to mounting

plate drawing below. Be sure to tighten screws to 3 ft.-lbs. (0.4 Kg.-m.).

Mounting Plate Drawing

Figure 2

b. The rating for each disconnect can be observed in Table 3.

4. Ensure the operator is in the OFF position and then remove the cover

bolts while securing cover. Carefully open the cover fully to prevent

damage to the machined joint ame path and cover gasket.

5. Pull wires into enclosure, making sure they are long enough to make

the required electrical connections. Install the proper wire clamps or

other approved devices to hold the wires securely in place. Install the

ground, line and load wires. Tighten the wire binding screws to torque

values shown on Table 4.

Note:

a. The internal grounding terminal shall be used as equipment

grounding means. The external terminal is only a supplemental bonding

connection.

To avoid risk of electrical shock, electrical power must be OFF before

and during product installation and maintenance. Failure to comply can

result in damage to equipment, injury or death to personnel.

WARNING

Table 1

Series

A B C D E F Weight

in mm in mm in mm in mm in mm in mm Ib Kg

DS361UX 9.74 247 5.00 127 10.47 266 11. 1 3 283 12.47 317 3.50 89 33 15

DS362UX 9.90 251 7. 0 0 178 12.53 318 15.13 384 16.53 420 3.50 89 51 23

DS363UX 10.28 261 9.00 229 14.67 373 1 7. 1 3 435 18.67 4 74 3.50 89 72 33

DS361FX 10.02 255 7. 0 0 178 12.67 322 13.13 333 14.67 373 3.50 89 47 21

DS362FX 9.90 251 7. 0 0 178 12.53 318 15.13 384 16.53 420 3.50 89 51 23

DS363FX 10.40 264 15.00 380 17.31 440 11.50 292 23.31 592 3.50 89 108 49

Table 2

Series Amperage Switch Type Manufacturer Mfr.’s Part #

DS361UX 30A

Non-fusible

EATON DS16U

DS362UX 60A EATON DS26U

DS363UX 100A EATON DS36U

DS361FX 30A

Fusible

EATON DS161R

DS362FX 60A EATON DS262R

DS363FX 100A EATON DS363R

Table 3 Fusible and Non-fusible Switches, 3-pole 600 VAC Max., 250VDC Max.

Maximum Horsepower Rating

Mfr.’s

Part #

Ampere

Rating

Fuse

Type 480 VAC 600 VAC 250 VDC Voltage

DS16U 30

N/A

15 20 5

600 VAC,

125/250

VDC

DS26U 60 30 50 10

DS36U 100 60 75 20

DS161R 30

Class J

15 20 5

DS262R 60 30 50 10

DS363R 100 60 75 20

CAUTION

To avoid risk of explosion, hazardous location information specifying

Class and Group listing of each device is marked on the nameplate of

each enclosure. Class and Group list for and device penetrating the

enclosure must be suitable for the classification of location in which the

enclosure is installed. Conduit sealing fittings MUST be installed in each

attached conduit run within 18 inches of the enclosure per the National

Electrical Code.

CAUTION

To avoid the risk of explosion, hammers or prying tools must

not be allowed to damage the flat machined joint surfaces or cover

gasket. Do not handle covers roughly or place them on surfaces that

might damage or scratch the flat machined joint surfaces.

To avoid the risk of explosion, do not use cover bolts as a means to

lift the enclosure. Excessive force on the partially retracted cover bolts

may damage the bolt. Use appropriate lifting method for safety.

CAUTION

ONLY DS363FX

b. Maximum wire sizes are recommended based on NEC minimum

wire bending space at each terminal per designated enclosure. Select

wire gauge per NEC standard.

c. Table 4 lists maximum wire gauges for 55°C ambient temperature.

d. Use copper wire only. Wire to be rated at 75/90°C.

6. For fusible disconnects, install Class J fuses. Contact Eaton’s

Bussmann Division for more fuse information.

7. Test wiring for good connection by performing a continuity check.

Also, check for unwanted grounds with an insulation resistance tester.

WIRING DIAGRAM

8. Make sure that operator and fork are in the OFF position.

Figure 3

9. Fully tighten all cover bolts. See Table 5.

MAINTENANCE

1. Electrical and mechanical inspections must be done on a regular basis.

It is recommended that inspections be performed a minimum of once a

year.

2. If necessary to open enclosure for inspection or service, always

disconnect primary power source and refer to cautionary statement or

nameplate before opening cover. Area must be free of ammable gases

and vapor before opening cover.

3. Perform visual check for undue heating evidenced by discoloration of

wires or other components, damage or worn parts or leakage evidenced

by water or corrosion in the interior.

4. Electrically check to make sure that all connections are clean and tight and

that contacts in the components make and break as required.

5. Mechanically check that all parts are properly assembled and operating

mechanisms move freely.

a. For more operator adjustment instructions, see Figure 4.

Fork Adjustment

1. Assemble operator into cover.

2. Measure distance from body ange to bottom toggle (Dimension A).

3. Measure distance from inside of cover to bottom of fork (Dimension B).

4. Adjust fork up or down so that (B - A - 0.12”).

5. Move breaker toggle to “off” position and operator handle to “off”

position.

6. Close cover and check breaker operation.

7. Adjust fork up or down to optimize breaker operation.

Stop Adjustment

1. Move operator to “on position.”

2. Put light pressure on handle in the “on” direction and hold in that position.

Fork should be touching toggle.

3. Turn stop screw until it touches handle.

4. Tighten stop nut.

5. Move operator to “off” position.

6. Put normal pressure on handle in the “off” direction until the handle stops.

Hold in that position. This represents the reset position.

7. Turn stop screw until it touches handle.

8. Tighten stop nut.

Figure 4

Eaton recommends an Electrical Preventive Maintenance Program as described

in the National Fire Protection Association Bulletin NFPA 70B.

Table 4 Terminal Torque Value

Series Amperage Wire Range in.-lb. N-m

DS361UX 30A #10-#8 AWG 35-40 4-5

DS362UX 60A #6-#3 AWG 45 5

DS363UX 100A #1-1/0 AWG 50 6

DS361FX 30A #10-#8 AWG 35-40 4-5

DS362FX 60A #6-#3 AWG 45 5

DS363FX 100A #1-1/0 AWG 50 6

All statements, technical information and recommendations contained herein are based on information and tests we believe to be reliable. The accuracy or completeness thereof are not guaranteed. In accordance with

Eaton’s Crouse-Hinds Division’s “Terms and Conditions of Sale,” and since conditions of use are outside our control, the purchaser should determine the suitability of the product for his intended use and assumes

all risk and liability whatsoever in connection therewith.

Eaton’s Crouse-Hinds Division IF 1772

1201 Wolf Street Syracuse, New York 13208 • U.S.A. Revision 2

Supercedes 07/15

To avoid the risk of explosion, clean both machined joint surfaces