ABB EOHU Series Training manual

EOHU364/5/6JK/RK/S/SS
NEMA 12, 3R, 4X / 200 A, 400 A, 600 A
Instruction Bulletin / Boletín de instrucciones / Directives d‘utilisation / 34EOHU364-5-6JRS / A, 1SCC340038M1401

Retain for future use. / Conservar para uso futuro. / À conserver pour usage ultérieur.

EOHU364/5/6JK/RK/S/SS
NEMA 12, 3R, 4X / 200 A, 400 A, 600 A
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EOHU Series
Heavy Duty Non-fusible Safety Switches
EOHU Serie
Interruptores de seguridad de servicio pesado
EOHU Série
Interrupteurs de sécurité pour service intensif
200 A, 400 A, 600 A
NEMA 12: EOHU364JK, EOHU365JK, EOHU366JK
NEMA 3R: EOHU364RK, EOHU365RK, EOHU366RK
NEMA 4X: EOHU364S, EOHU364SS, EOHU365S, EOHU365SS,
EOHU366S, EOHU366SS
Instruction Bulletin / Boletín de instrucciones / Directives d‘utilisation, 1SCC340038M1401 / A | EOHU364/5/6JK/RK/S/SS 3
French version is available at later date.

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EOHU Series
Heavy Duty Non-fusible Safety Switches
General safety instructions 1/2
Receiving, handling and storage 1/3
Applications 1/4
Product overview 1/5
EOHU364JK/_RK/_S/_SS, EOHU365JK/_RK/_S/_SS,
EOHU366JK/_RK/_S/_SS 1/5
Ratings 1/6
Heavy duty non-fusible safety switches 1/6
Cabling 1/7
Heavy duty non-fusible safety switches 1/7
Neutral bus and auxiliary contacts 1/8
Installation 1/9
Opening the enclosure 1/9
Knockouts 1/10
Mounting 1/11
Wiring 1/12
Neutral assembly (optional) 1/13
Auxiliary contact (optional) 1/14
Operation 1/15
Operating 1/15
Operating mechanism 1/16
Padlocking handle and door latches 1/18
Dimension drawings 1/19
EOHU364JK/_RK/_S/_SS, EOHU365JK/_RK/_S/_SS, EOHU366JK/_RK/_S/_
SS / NEMA 12, 3R, 4X / 200 A, 400 A, 600 A 1/19
Cable outlets / knockouts for NEMA 12 and 3R types 1/20
Accessories (optional) 1/21
Ordering information 1/21
Maintenance 1/22
Replacement parts, ordering information 1/22
Installation and maintenance log 1/23
Instruction Bulletin EOHU364/5/6JK/RK/S/SS, 1SCC340038M1401 / A | EOHU Series 1/1

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1/2 General safety instructions | Instruction Bulletin EOHU364/5/6JK/RK/S/SS, 1SCC340038M1401 / A
General safety instructions
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
– Apply appropriate personal protective equipment (PPE) and
follow safe electrical work practices. See NFPA 70E or CSA
Z462.
– This equipment must only be installed and serviced by
qualified electrical personnel.
– Before performing visual inspections, tests, or maintenance
on the equipment, disconnect all sources of electric power.
Assume that all circuits are live unless they are completely
deenergized, tested, grounded, and tagged. Pay particular
attention to the design of the power system. Consider all
sources of power, including the possibility of backfeeding.
– Never operate energized switch with door open.
– Turn off switch before making load side connections.
– Always use a properly rated voltage sensing device at all line
to confirm switch is off.
– Turn off power supplying switch before doing any other work
on or inside switch.
Failure to follow these instructions will result in death or
serious injury.
Read these safety instructions carefully before using this product!
DANGER

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Instruction Bulletin EOHU364/5/6JK/RK/S/SS, 1SCC340038M1401 / A | Receiving, handling and storage 1/3
Receiving, handling and storage
Receiving and handling
Upon receipt, carefully inspect the switch for damage that may
have occurred during transit. If damage is evident, or there is
visible indication of rough handling, immediately file a damage
claim with the transportation company, and notify your local
ABB sales office.
Do not remove the shipping package until ready to install the
switch.
WARNING
HAZARD OF EQUIPMENT OVERTURNING
When moving with a fork lift, do not remove the shipping package until
the device is in its final location.
Failure to follow this instruction will result in personal injury or
equipment damage.
Storage
If the unit will not be placed into service immediately, store
the switch on its original package in a clean, dry location. To
prevent condensation, maintain a uniform temperature. Store
the unit in a heated building, allowing adequate air circulation
and protection from dirt and moisture. Storing the unit outdoors
could cause harmful condensation inside the switch enclosure.

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1/4 Applications | Instruction Bulletin EOHU364/5/6JK/RK/S/SS, 1SCC340038M1401 / A
Applications
Heavy duty non-fusible safety switches offer the ability to
manually open and close a circuit. Products can be used as
disconnecting means or on the load side of a branch circuit
protective device and are suitable for use as motor disconnects.
General purpose current ratings: 200 A, 400 A and 600 A
Standards: UL98, UL50, NEMA KS1, CSA
Catalog numbers:
TYPE 12: EOHU364JK, EOHU365JK, EOHU366JK
TYPE 3R: EOHU364RK, EOHU365RK, EOHU366RK
Enclosure material specification: Electrically galvanized steel,
polyester powder coating. Thickness: door and enclosure 0.059
in /1.5 mm (EOH364K/5K) and 0.079 in /2 mm (EOH366K).
Handle: glass reinforced polyamide (PA f1), polycarbonate (PC f1).
Enclosure color: ANSI 61 (light gray).
The EOHU series non-fusible safety switches are side-operated,
3 pole, 600V, available in UL environmental ratings TYPE 12 and
TYPE 3R housed in steel sheet enclosures and TYPE 4X housed
in stainless steel sheet enclosures.
The EOHU364JK/_RK/_S/_SS, EOHU365JK/_RK/_S/_SS, EOHU366JK/_RK/_S/_SS non-fusible safety switches up to 600 VAC, 3-ph with the ground bus
(included) and the neutral link N (optional)
Catalog numbers:
TYPE 4X: EOHU364S, EOHU365S, EOHU366S
Enclosure material specification: Stainless steel sheet, Grade
304: AISI304. Thickness: door and enclosure 0.059 in /1.5 mm
(EOH364K/5K) and 0.079 in /2 mm (EOH366K). Handle: glass
reinforced polyamide (PA f1), polycarbonate (PC f1).
Catalog numbers:
TYPE 4X: EOHU364SS, EOHU365SS, EOHU366SS
Enclosure material specification: Stainless steel sheet, Grade
316: AISI316. Thickness: door and enclosure 0.059 in /1.5 mm
(EOH364K/5K) and 0.079 in /2 mm (EOH366K). Handle: glass
reinforced polyamide (PA f1), polycarbonate (PC f1).
Controller
Disconnecting means
Short circuit protective device
Overload protection
Motor disconnection
Auxiliary contacts
(optional) inside the
mechanism
Ground
bus
Neutral link
(optional)

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3 8
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610
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Instruction Bulletin EOHU364/5/6JK/RK/S/SS, 1SCC340038M1401 / A | Product overview 1/5
Product overview
EOHU364JK/_RK/_S/_SS, EOHU365JK/_RK/_S/_SS,
EOHU366JK/_RK/_S/_SS
1. Door latches, provision for padlocking
2. Handle
3. Knockouts in catalog numbers EOHU364JK/_RK, EOHU365JK/_RK and
EOHU366JK/_RK (TYPE12 and 3R), blank in catalog numbers
EOHU364S/_SS, EOHU365S/_SS and EOHU366S/_SS (TYPE 4X)
4. Keyslot mounting hole (1 pc / side)
5. Mounting holes (EOHU364JK/_RK/_S/_SS: 2 pcs / side,
EOHU365/6JK/_RK/_S/_SS: 4 pcs / side)
6. 3-pole switch, double breaking contacts with viewing windows
7. Line side terminal lugs
8. Load side terminal lugs
9. Ground bus (2 lugs)
10. Operating mechanism, inside place for auxiliary contacts (optional)
11. Door interlock mechanism
12. Locking hook for door interlock mechanism
13. Door interlock bypass shaft (Only qualified personnel should perform this
procedure)
14. Hole for padlocking the handle (3 padlocks)
15. Place for neutral assembly (optional)

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1/6 Ratings | Instruction Bulletin EOHU364/5/6JK/RK/S/SS, 1SCC340038M1401 / A
Non-fusible safety switch catalog number EOHU364_ EOHU365_ EOHU366_
AMPS A 200 400 600
General purpose current rating A 200 400 600
Max. horse power rating Three phase 240 V HP 60 125 200
480 V HP 125 250 400
600 V HP 150 350 500
Max. motor FLA current Three phase 240 V A 192 360 480
480 V A 156 302 477
600 V A 144 336 472
Short circuit rating Class R, J or T fuses 480 V kA 200 200 200
Class R fuses 600 V kA 200 100 200
Class J or T fuses 600 V kA 200 200 200
Ground bus
Ground bus catalog number OZXG1 OZXG2 OZXG2
Temperature rating °F 167 167 167
°C 75 75 75
Auxiliary contacts, optional
Suitable auxiliary contacts Function 1NO OA1G10 OA1G10 OA1G10
1NC OA3G01 OA3G01 OA3G01
Nema ratings, AC AC600 AC600 AC600
AC rated voltage VAC 600 600 600
AC rated thermal current A 10 10 10
AC maximum volt-ampere making VA 7200 7200 7200
AC maximum volt-amperage breaking VA 720 720 720
Nema ratings, DC R300 R300 R300
DC rated voltage VDC 300 300 300
DC rated thermal current A 1 1 1
DC maximum make-break VA 28 28 28
Ratings
Heavy duty non-fusible safety switches