Leviton powerswitch MDS3-AC User manual

Safety Disconnect Switch in Watertight Enclosure
Cat. Nos. MDS3-AC, MDS3-AX, MDS3-ST, MDS3-AST – Rated: 30/32A-600VAC Max.
Cat. Nos. MDS6-AC, MDS6-AX, MDS6-ST, MDS6-AST – Rated: 60A-600VAC Max.
Cat. Nos. MDS8-AC, MDS8-AX – Rated: 80A-600VAC Max.
Cat. Nos. MDS1-AC, MDS1-AX – Rated: 100A-600VAC Max.
Aux. Contact – Rated: 10A, 600V PK-A3191-10-00-0F
INSTALLATION INSTRUCTIONS ENGLISH
NOTES:
• For NEMA Type 4X, Type 12 and IP69K applications, enclosure must be mounted by means of mounting feet.
Do not drill or punch any holes into enclosure for mounting purposes.
•
Use of a UL Listed Watertight conduit fitting required to maintain the NEMA Type 4X, Type 12 and IP69K ratings.
Leviton conduit hubs (see Table 1) are rated for Type 4X and Type 12 applications. NOTE: If required, use only a listed/
certified breather drain rated for Type 4X, Type 12 and/or IP69K depending on required environmental application. Drill or
punch a 0.796
in (20.2 mm) diameter hole through the bottom of the enclosure at the drill point provided.
• Mounting feet will accept up to 1/4 in (6 mm) screws.
• Drill points provided for conduit entry.
• When using top or side feed conduit entrance, always form condensation drip loops in wiring as shown.
powerswitch®
• Provides ON/OFF switched control of a directly connected load.
• Meets the requirements of Outdoor/Indoor (IP66, IP67, IP68, IP69K NEMA Type 3R, 4X, 12, 13 Watertight,
Corrosion-Resistant) and Indoor (Type 12 Dust-Tight) installations.
• The cover cannot be opened or removed when the handle is in the "ON" position.
• This product is certified by NSF®International, for use in food processing facilities.
• Normally open and normally closed auxiliary contact (if used) is rated 10A-600VAC.
FEATURES
INSTALLATION
STEPS
1. Mount Safety Disconnect Switch.
2. Remove enclosure cover by loosening two cover screws and lifting cover off hinges.
3. Remove switch (see REMOVE SWITCH section). This is recommended to prevent steel debris from entering
switch components.
4. Drill or punch conduit hole in desired location(s). See Table 1 for fitting size.
NOTE: If you have a slope top version (MDS3-ST, MDS3-AST, MDS6-ST, MDS6-AST), top feeding wiring is NOT
an option.
5. Install conduit fitting. Ensure "O" ring is properly seated and that the inside locking ring is seated tightly against the
inside surface of enclosure, to ensure proper grounding.
6. Re-install switch (see REPLACE SWITCH section).
7. Connect wires (see WIRING section).
8. Replace cover and hand thread screws to engagement.
NOTE: Handle must be in the "OFF" position to close cover. Tighten screws to 15-18 in.-lbs. (1.7-2.0 N-m) torque.
WARNINGS:
• TO AVOID FIRE, SHOCK, OR DEATH, TURN OFF POWER AT CIRCUIT BREAKER OR FUSE AND TEST THAT
POWER IS OFF BEFORE WIRING OR SERVICING DEVICE.
• TO AVOID FIRE, SHOCK, OR DEATH, DISCONNECT ALL POWER SUPPLIES TO ENCLOSURE BEFORE
EXPOSING INTERIOR. MORE THAN ONE SUPPLY DISCONNECT MAY BE REQUIRED TO DE-ENERGIZE THIS
EQUIPMENT BEFORE SERVICING.
• Separate over-current protection must be provided in accordance with the NEC® Article 220 or CEC, Section B,
as appropriate.
• This enclosure includes a lockout provision (in the OFF position) for a suitable padlock. USE ONLY a padlock with
a shackle diameter of 1/4 in. (6.35 mm.) to isolate power from the connected equipment, in compliance with OSHA
Lockout/Tagout Regulation 29 CFR Part 1910.147.
NOTE: Lockout feature does NOT interrupt the power supplied to the switch within the enclosure.
CAUTIONS:
• For installation ONLY by an electrician, in accordance with the National Electrical Code®(NEC), the Canadian
Electrical Code (CEC), and local codes.
• Use this device with copper or copper-clad wire only.
• Ensure that the rating marked on the device is correct for the intended installation.
• Suitable as Motor Disconnect on a circuit capable of delivering not more than:
- MDS3-AC, MDS3-AX - 10kA rms symmetrical amperes, 600V max., when protected by 60A, Class J fuses.
- MDS3-ST, MDS3-AST - 10kA rms symmetrical amperes, 600V max., when protected by 60A, Class J fuses.
- MDS6-AC, MDS6-AX - 100kA rms symmetrical amperes, 600V max., when protected by 100A, Class J or T fuses.
- MDS6-ST, MDS6-AST - 100kA rms symmetrical amperes, 600V max., when protected by 100A, Class J or T fuses.
- MDS8-AC, MDS8-AX - 100kA rms symmetrical amperes, 600V max., when protected by 100A, Class J or T fuses.
- MDS1-AC, MDS1-AX - 65kA rms symmetrical amperes, 600V max., when protected by 100A, Class J fuses.
Cat. No. Hub Trade Size Min QTY Required Leviton Cat. No. Conduit Hole
MDS3 3/4 in (19.05 mm) 1 HUB-034 1.05 in (26.67 mm)
MDS6 1-1/4 in (31.75 mm) 1 HUB-114 1.66 in (42.16 mm)
MDS8 1-1/4 in (31.75 mm) 2 HUB-114 1.66 in (42.16 mm)
MDS1 1-1/4 in (31.75 mm) 2 HUB-114 1.66 in (42.16 mm)
TABLE 1
NOTE: Use conductors with insulation rated 167 ° F (75 ° C) or higher, having sufficient ampacity in accordance with the 140 ° F (60 ° C) column of Table 310.15(B)(16) of the 2014 NEC®or Table 2 of the Canadian Electrical Code.
NOTE: Ensure that there are no stray conductor strands. DO NOT tin conductors.
1. WARNING: TO AVOID FIRE, SHOCK, OR DEATH, TURN OFF POWER AT CIRCUIT BREAKER OR FUSE AND TEST THAT POWER IS OFF BEFORE WIRING OR SERVICING DEVICE.
2. Strip all conductors approximately 1/2 in. (13.0 mm.).
NOTE: Refer to conductor sizes accepted for specific switch below.
3. Connect conductors per appropriate WIRING DIAGRAM (see reverse side).
4. Tighten all terminal screws per specific torque values below:
WIRING
WARNING: RISK OF ELECTRIC SHOCK. TURN OFF POWER AT CIRCUIT BREAKER OR FUSE. DO NOT clean this product while undergoing electrical maintenance or service .
CAUTION: Use only chemicals and cleaning solutions that are safe for use with plastics and rubber gaskets.
1. Follow general cleaning procedures established by your facility.
2. This product is certified by NSF®International to NSF/ANSI/3-A 14159-1.
3. Recommended cleaning procedures are:
a. Use hose-directed water or a cleaning solution to remove any collected contaminants from behind the enclosure. Ensure water completely cleans the area between the enclosure and the mounting surface.
b.
Use hose-directed water or a cleaning solution to remove soil and contaminants from the exterior surfaces of the enclosure.
c. CAUTION: DO NOT direct or concentrate high-pressure water or cleaning solution on the enclosure gasket seams, switch handle area, or exterior labels.
d. After cleaning the exterior surfaces of the enclosure, open the enclosure door and use a clean, damp cloth to manually remove any soil or contaminants from the gasket seam area and flanged lip on enclosure body.
e.If needed, the door can be lifted off the enclosure body to clean hinge cavities.
f.Use a dry, clean cloth to wipe away any excess water.
CLEANING PROCEDURES
Captive cover screw (2)
Drill point for
breather drain
Drill point
Drill point
Mounting feet
ON/OFF
handle
Switch
DIN rail
Neutral bus
Ground bus
Mounting
holes for
enclosure
10.12 in.
Condensation
drip loops
4.75 in.
Top or bottom conduit connection/wire entry
MDS6-AX depicted (60A)
Condensation
drip loops
Listed/certified
conduit hub rated
type 3R, 4X, 12
(not provided)
Mounting
holes for
enclosure
8.38 in.
3.5 in.
Top or bottom conduit connection/wire entry
MDS3-AX depicted (30A)
Feed through conduit connection/wire entry
MDS1-AX depicted (100A)
Lift cover
off hinges.
Breather drain (not supplied)
Dual top or bottom conduit connection/wire entry
MDS8-AX depicted (80A)
Listed/certified
conduit hub rated
type 3R, 4X, 12
(not provided)
Listed/certified
conduit hub rated
type 3R, 4X, 12
(not provided)
Mounting
holes for
enclosure
10.12 in.
Condensation
drip loops
4.75 in.
NOTE: Enclosure to be mounted such that drain
will always be on the bottom as shown.
Mounting
holes for
enclosure
11.38 in.
Condensation
drip loops
5.75 in.
Listed/certified
conduit hub rated
type 3R, 4X, 12
(not provided)
Note: Auxiliary
Contact, if used
Note: Auxiliary
Contact, if used
Note: Auxiliary
Contact, if used Note: Auxiliary
Contact, if used
Note: Auxiliary
Contact, if used
1
2
3
4
5
6
G
G
L
G
T
N
N
W
B
120 VAC 1 Ø
277 VAC 1 Ø
1
2
3
4
5
6
N
N
LL
G
G
G
T
240 VAC 1 Ø
480 VAC 1 Ø
600 VAC 1 Ø
1
2
3
4
5
6
N
N
X Y Z
G
G
G
T
240 VAC 3 Ø
480 VAC 3 Ø
600 VAC 3 Ø
1
2
3
4
5
6
N
N
G
G
LL
G
T
W
B
120/240 VAC 1 Ø
1
2
3
4
5
6
XYZ
G
G
G
T
N
N
W
B
120/208 VAC 3 ØY
277/480 VAC 3 ØY
347/600 VAC 3 ØY
13
14
13
14
13
14
13
14
13
14
Note: Auxiliary Contact,
if used
Note: Auxiliary Contact,
if used
Note: Auxiliary Contact,
if used
Note: Auxiliary Contact,
if used
Note: Auxiliary Contact,
if used
WIRING DIAGRAMS
Break All Lines
WEB VERSION

© 2021 Leviton Mfg. Co., Inc.
FOR CANADA ONLY
For warranty information and/or product returns, residents of Canada should contact Leviton in writing at Leviton Manufacturing of Canada ULC to the attention of the Quality Assurance Department, 165 Hymus Blvd, Pointe-Claire
(Quebec), Canada H9R 1E9 or by telephone at 1 800 405-5320.
For Technical Assistance Call: 1-800-824-3005 (USA Only) or 1-800-405-5320 (Canada Only) www.leviton.com
LIMITED 3 YEAR WARRANTY AND EXCLUSIONS
Leviton warrants to the original consumer purchaser and not for the benefit of anyone else that this product at the time of its sale by Leviton is free of defects in materials and workmanship under normal and proper use for three years from the
purchase date. Leviton’s only obligation is to correct such defects by repair or replacement, at its option. For details visit www.leviton.com or call 1-800-824-3005. This warranty excludes and there is disclaimed liability for labor for removal
of this product or reinstallation. This warranty is void if this product is installed improperly or in an improper environment, overloaded, misused, opened, abused, or altered in any manner, or is not used under normal operating conditions or not in
accordance with any labels or instructions. There are no other or implied warranties of any kind, including merchantability and fitness for a particular purpose, but if any implied warranty is required by the applicable jurisdiction, the duration
of any such implied warranty, including merchantability and fitness for a particular purpose, is limited to three years. Leviton is not liable for incidental, indirect, special, or consequential damages, including without limitation, damage
to, or loss of use of, any equipment, lost sales or profits or delay or failure to perform this warranty obligation. The remedies provided herein are the exclusive remedies under this warranty, whether based on contract, tort or otherwise.
Powerswitch is a trademark of Leviton Mfg. Co., Inc., registered in the U.S.A.
NOTE: DO NOT REMOVE DIN RAIL.
1. Remove both mounting screws securing the switch.
2. Insert a flathead screwdriver into switch tab (A). Gently pull tab outward, while pulling switch up, beginning with the tab side and then the opposite side.
NOTE: If replacing the switch component, remove switch rod by loosening set screw (B), pulling rod out of switch, and setting rod aside.
NOTE: If replacing the switch component, you can remove auxiliary contact on switch, by inserting flathead screwdriver tip between switch and auxiliary contact, and pressing outward.
REMOVE SWITCH
NOTE: If replacing the switch component, re-install switch rod, ensuring it is fully seated in bottom of pocket. Tighten set screw to 8-10 in.-lbs. (0.9-1.1 N-m).
NOTE: If replacing the switch component, attach auxiliary contact (if applicable) to switch, by fitting the tabs on top and pressing in the auxiliary contact in a downward motion.
1. Mount switch onto DIN rail by hooking back side hinge onto DIN rail, and then gently pull switch tab outward and push switch down, until it snaps into place.
2. Slide switch into position and align the two screw holes with threaded holes in base plate. Tighten 2 mounting screws to 6-8 in.-lbs. (0.67-0.9 N-m).
3. Verify switch cover properly mates with switch mechanism with cover closed, and that ON/OFF handle moves freely.
REPLACE SWITCH
Switch
mounting
screws
Flathead
screwdriver
Switch
tab
Switch rod set screw
A B
MDS3-AX - SSCR Rating:
Suitable for use on a circuit capable of delivering not
more than 10kA rms symmetrical amperes, 600V
max., when protected by 60A, Class J fuses.
Rating Poles HP Rating
30/32A 2 120 VAC 1
Ø 2 HP
30/32A 2 208-240 VAC 1
Ø 5 HP
30/32A 2 480 VAC 1
Ø 5 HP
30/32A 2 600 VAC 1
Ø 5 HP
30/32A 3 120/208 VAC 3
Ø 10 HP
30/32A 3 208-240 VAC 3
Ø 10 HP
30/32A 3 480 VAC 3
Ø 20 HP
30/32A 3 600 VAC 3
Ø 25 HP
Auxiliary Contact Rating
10A 1 600 VAC
Short circuit ratings at 600VAC
kA Fuse / A Class of fuse
10 60 J
HP Rating: 30/32A-600VAC Max.
Torque:
Switch terminals: 7 in.-lbs. (0.8 N-m)
Neutral terminals: 15 in.-lbs. (1.7 N-m)
Ground terminals: 15 in.-lbs. (1.7 N-m)
Auxiliary contact*: 7 in.-lbs. (0.8 N-m)
*(if used)
Conductor sizes accepted:
Switch terminals: #14 - #8 AWG
Neutral terminals: #14 - #8 AWG
Ground terminals: #14 - #8 AWG
Auxiliary contact*: #18 - #14 AWG
*(if used)
MDS3-AX, MDS3-AC, MDS3-ST, MDS3-AST
MDS6-AX - SSCR Rating:
Suitable for use on a circuit capable of delivering not
more than 100kA rms symmetrical amperes, 600V
max., when protected by 100A, Class J or T fuses.
Rating Poles HP Rating
60A 2 120 VAC 1
Ø 2 HP
60A 2 208-240 VAC 1
Ø 10 HP
60A 2 480 VAC 1
Ø 20 HP
60A 2 600 VAC 1
Ø 20 HP
60A 3 208-240 VAC 3
Ø 20 HP
60A 3 480 VAC 3
Ø 40 HP
60A 3 600 VAC 3
Ø 40 HP
Auxiliary Contact Rating
10A 1 600 VAC
Short circuit ratings at 600VAC
kA Fuse / A Class of fuse
100 100 J or T
HP Rating: 60A-600VAC Max.
Torque:
Switch terminals: 18 in.-lbs. (2 N-m)
Neutral terminals: 31 in.-lbs. (3.5 N-m)
Ground terminals: 31 in.-lbs. (3.5 N-m)
Auxiliary contact*: 7 in.-lbs. (0.8 N-m)
*(if used)
Conductor sizes accepted:
Switch terminals: #14 - #4 AWG
Neutral terminals: #14 - #1/0 AWG
Ground terminals: #14 - #2 AWG
Auxiliary contact*: #18 - #14 AWG
*(if used)
MDS6-AX, MDS6-AC, MDS6-ST, MDS6-AST
MDS8-AX - SSCR Rating:
Suitable for use on a circuit capable of delivering not
more than 100kA rms symmetrical amperes, 600V
max., when protected by 100A, Class J or T fuses.
Rating Poles HP Rating
80A 2 120 VAC 1
Ø 2 HP
80A 2 208-240 VAC 1
Ø 10 HP
80A 2 480 VAC 1
Ø 20 HP
80A 2 600 VAC 1
Ø 20 HP
80A 3 208-240 VAC 3
Ø 20 HP
80A 3 480 VAC 3
Ø 40 HP
80A 3 600 VAC 3
Ø 40 HP
Auxiliary Contact Rating
10A 1 600 VAC
Short circuit ratings at 600VAC
kA Fuse / A Class of fuse
100 100 J or T
HP Rating: 80A-600VAC Max.
Torque:
Switch terminals: 18 in.-lbs. (2 N-m)
Neutral terminals: 31 in.-lbs. (3.5 N-m)
Ground terminals: 31 in.-lbs. (3.5 N-m)
Auxiliary contact*: 7 in.-lbs. (0.8 N-m)
*(if used)
Conductor sizes accepted:
Switch terminals: #14 - #4 AWG
Neutral terminals: #14 - #1/0 AWG
Ground terminals: #14 - #2 AWG
Auxiliary contact*: #18 - #14 AWG
*(if used)
MDS8-AX, MDS8-AC
MDS1-AX - SSCR Rating:
Suitable for use on a circuit capable of delivering not
more than 65kA rms symmetrical amperes, 600V
max., when protected by 100A, Class J fuses.
Rating Poles HP Rating
100A 2 110-120 VAC 1
Ø 7.5 HP
100A 2 220-240 VAC 1
Ø 20 HP
100A 2 277 VAC 1
Ø 25 HP
100A 2 440-480 VAC 1
Ø 30 HP
100A 3 550-600 VAC 3
Ø 30 HP
100A 3 110-120 VAC 3
Ø 15 HP
100A 3 220-240 VAC 3
Ø 40 HP
100A 3 440-480 VAC 3
Ø 60 HP
100A 3 550-600 VAC 3
Ø 50 HP
Auxiliary Contact Rating
10A 1 600 VAC
Short circuit ratings at 600VAC
kA Fuse / A Class of fuse
65 100 J
HP Rating: 100A-600VAC Max.
Torque:
Switch terminals: 27 in.-lbs. (3 N-m)
Neutral terminals: 53 in.-lbs. (6.0 N-m)
Ground terminals: 31 in.-lbs. (3.5 N-m)
Auxiliary contact*: 7 in.-lbs. (0.8 N-m)
*(if used)
Conductor sizes accepted:
Switch terminals: #8 - #1/0 AWG
Neutral terminals: #6 - #1/0 AWG
Ground terminals: #14 - #2 AWG
Auxiliary contact*: #18 - #12 AWG
*(if used)
MDS1-AX, MDS1-AC
Patents covering this product, if any, can be found on Leviton.com/patents.
NSF is a registered trademark of NSF International.
WEB VERSION