Heavy Duty Safety Switches

Heavy duty safety switches are designed for the following applications:

• Commercial and industrial installations

• Up to 600 Vac or 600 Vdc maximum

• Up to 200,000 rms symmetrical amperes short circuit current

• 30–1200 A

• Horsepower ratings

• Load-make, load-break rated for the switch current rating

• Seismically Qualified to the:

  • 2010 ASCE 7

  • 2012 International Building Code (IBC)

  • 2013 California Building Code (CBC)

  • State of California’s Office of Statewide Health Planning and

Visible Blades

Heavy duty safety switches are manufactured in accordance with these standards:

• UL98, Standard for enclosed and dead front switches. UL Listed;

  • 30–200 A, see file E2875

  • 400–1200 A, see file E154828

• NEMA Standards Publication KS1 and KS2 enclosed switches

• Federal Specifications WS-865C for Type HD

Operating Mechanism Series F

• Two- or three-, fusible switched poles-, with or without, insulated groundable solid neutral

• Four- or six-, fusible switched poles-, without insulated, grounded, solid neutral

• Two-, three-, four-, or six-, non-fusible switched poles-, without insulated, grounded, solid neutral

• Three, fusible switched poles-, without insulated, grounded, solid neutral, interlocked to Appleton™, Crouse-Hinds™, or Hubbellock™ receptacle

• Three, non-fusible switched poles, without insulated, grounded, solid neutral-, interlocked to Appleton, Crouse-Hinds, or Hubbellock receptacle

Mechanical Lugs

• Visible blades for positive blade position indication

• Optional viewing window allows visual verification of blade position without opening door; not available on NEMA Type 4X fiberglass reinforced polyester enclosures or NEMA Type 7/9 enclosures

• Red and black handle indicates the ON (red) or OFF (black) switch position - except NEMA Type 7/9 enclosures

• Series F handle, mechanism and lock plate are field replaceable

• Side-opening, left hinged covers

• Highly visible embossed ON-OFF marking / ON-OFF labels are used on NEMA Type 4X fiberglass reinforced polyester enclosures

• Quick-make, quick-break, operating mechanism

• Standard with plated aluminum lugs which accept both Cu and Al wires

• Front removable mechanical lugs

• Dual cover interlock prevents the cover from being opened when the switch is ON and prevents the switch from being turned ON when the cover is open

• An interlock bypass is provided for access by authorized personnel

Fuse Pullers

Class J Fuse Provisions Alternate mounting holes make for easy conversion to Class J fuses

Tangential Knockouts

• Factory installed fuse pullers are standard on 30–100 A, NEMA Type 4/4X/5 stainless steel, NEMA Type 4X fiberglass reinforced polyester and NEMA Type 12 or 12K switches; Available as a kit for field installation on 30–100 A, F Series switches, NEMA Type 1 and 3R switches

• 30–600 A switches are shipped with standard Class H fuse spacing. These switches will accept Class R fuses also; A field-installed rejection kit is available, which when installed, rejects all but Class R fuses;

• See Class R Fuse Kits

• Fuse load base(s) can be repositioned to accept Class J fuses on

• 30–600 A, 600 V switches and 100–600 A, 240 V switches;

• 600 A switches also require a mounting kit (catalog number H600J)

• Multiple padlock provision in OFF position (three 3/16-5/16 in. (4-7 mm) shank padlocks)

• Provisions to lock ON with one 3/8 in. (9 mm) padlock available factory installed, except for NEMA Type 7/9 and NEMA Type 4X fiberglass reinforced polyester switches

• Tangential knockouts, where provided, lessen the need for conduit offset bends

• Lock-OFF provision is standard on all heavy duty safety switches

NEMA Type 316 stainless steel enclosure switches offer superior corrosion resistance to a wider range of chemicals than NEMA Type 304 stainless steel switches. NEMA Type 316 offers better resistance to chloride and is often used in marine, waste treatment and transportation applications.

• UL Listed

• Suitable for service entrance equipment

• Requires water tight hubs (see Watertight Hubs for water tight hub catalog numbers)

• Standard with equipment grounding lugs (see Equipment Grounding Kits and Terminal Data for terminal data)

H363DF

Fiberglass reinforced polyester enclosures are watertight, corrosion resistant and impervious to windblown dust, rain, and splashing liquid. The molded fiberglass is extremely stable in a wide range of operating temperatures and can withstand heavy impact.

• UL Listed and CSA Certified

• Suitable for service entrance equipment (USA only)

• Standard with water tight hubs provided

• Standard with equipment grounding lugs installed (see Equipment Grounding Kits and Terminal Data for terminal data)

H361DX

Krydon enclosures are compression molded of fiberglass reinforced polyester, specially formulated to withstand attack from almost any corrosive atmosphere found in the toughest industrial application.

• UL Listed

• Suitable for use as service equipment

• Standard with water tight hubs provided

• Standard with equipment grounding lugs installed (see Equipment Grounding Kits and Terminal Data for terminal data)

H60XBD

An enclosed automatic molded case switch for use in divisions 1 and 2 of the following: Class I, Group C and D; Class II, Groups E, F and G; or Class III, Hazardous Locations as defined in the NEC Article 500.

• cULus Listed

• Suitable for use as service equipment

• “Raintight” for outdoor applications

• Standard with threaded conduit opening in both top and bottom endwall

• Standard with equipment grounding lugs installed (see Equipment Grounding Kits and Terminal Data for terminal data)

Interlocked receptacle switches are furnished with a factory-installed, three-phase, four-wire, Appleton Powertite™, Crouse-Hinds Style 2 Arktite™ or Hubbellock™ receptacle. The fourth wire is connected to the switch equipment grounding terminal and is not a solid neutral termination. Interlocking linkage between the receptacle and switch mechanism prevents insertion or removal of the plug while the switch is in the “ON” position or insertion of any plug other than specified. The interlocking mechanism also prevents the switch from being turned “ON” if a plug has not been fully inserted into the receptacle.

H362AWA Interlocked Receptacle Switch with Appleton Powertite Receptacle

• UL Listed and CSA Certified

• Available in 30–100 A, 600 Vac / 250 Vdc, fused or non-fused, NEMA Type 1, NEMA Type 4/4X/5 stainless steel and NEMA Type 12/3R

• Suitable for use as service equipment (USA only)

• Receptacles are epoxy powder coated over copper-free cast aluminum

H362WC Interlocked Receptacle Switch with Crouse-Hinds Arktite Receptacle

• UL Listed

• Available in 30–100 A, 600 Vac / 250 Vdc, fused or non-fused, NEMA Type 1, NEMA Type 4/4X/5 stainless steel and NEMA Type 12/3R

• Suitable for use as service equipment

• Receptacles are cast aluminum and copper free for NEMA Type 1 and NEMA Type 12/3R safety switches.

• Receptacles are epoxy powder coated and copper free cast aluminum for NEMA Type 4/4X/5 stainless steel safety switches.

H362AWH Interlocked Receptacle Switch with Hubbellock Receptacle

• UL Listed

• Available in 30–100 A, 600 Vac / 250 Vdc, fused or non-fused, NEMA Type 1, NEMA Type 4/4X/5 stainless steel and NEMA Type 12/3R

• Suitable for use as service equipment

• Receptacles are zinc plated steel for NEMA Type 1 and NEMA Type 12 safety switches

• Short Circuit Current Rating for fusible switches is 10 kAIR maximum when used with Class H, K, J or R fuses

• Short Circuit Current Rating for non-fusible switches is 10 kAIR maximum when protected by Class H, K, J, R or T fuses

Rainproof Bolt-On Hubs

Order bolt-on hubs separately from Rainproof Bolt-on.

• UL Listed for indoor or rainproof applications

• Suitable for use with conduit having ANSI standard taper pipe thread

• NEMA Type 3R enclosures with catalog number ending in RB have a bolt-on closing cap factory installed

  • Accepts 3/4 in. (19 mm) through 2-1/2 in. (63 mm) bolt-on hubs

• Switches with R suffix have blank top endwalls

  • Accepts 3 in. (76 mm) through 4 in. (101 mm) bolt-on hubs

  • Conduit entry holes must be cut in the field

Watertight Hubs

• UL Listed for dust tight and watertight applications

• Suitable for use with conduit having ANSI standard taper pipe thread

• Watertight hubs are field installed on NEMA Type 4/4X/5 stainless steel and

• NEMA Type 12/3R and 12K enclosures

• Watertight hubs are available in zinc or chrome plated finish

Field-installed Insulated, Grounded Neutral

• Factory or field-installed, insulated, groundable, solid neutral assemblies

GTK0610 Field-installed Equipment Grounding Kit

Equipment grounding kits available for factory or field installation.

• UL Listed

• For factory installation add suffix GL

Cover Viewing Window

The optional cover viewing window is positioned over the blades to allow visual verification of the ON-OFF status. Available on 30 through 1200 A heavy duty switches.

• UL Listed

• Factory installed only

• Add a VW suffix to the catalog number for factory installation

• Not available on NEMA Type 4X fiberglass reinforced polyester, Krydon^TM or NEMA Type 7/9 enclosures

EIK2 Electrical Interlock Kit

Electrical interlocks for heavy duty safety switches, 30 through 1200 A, are available factory installed or in kit form for field installation. A pivot arm operates from the switch mechanism, breaking the control circuit before the main switch blades break.

• UL Listed, factory or field installed

Class R Fuse Kits

When installed, the Class R Fuse Kit rejects all but Class R fuses.

• UL Listed

• For factory installation, add CLR to the catalog number

• For systems having up to 200,000 rms symmetrical amperes fault current available

• One kit is required for a three-pole switch

Fuse Puller Kits

• Fuse Puller Kits are standard equipment on the following 30–100 A switches:

  • NEMA Type 12 and 12K

  • NEMA Type 4/4X/5 stainless steel

  • NEMA Type 4X fiberglass reinforced polyester, and Krydon™

• Fuse Puller Kit available for field installation on NEMA Type 1 and NEMA Type 3R, 30–100 A switches

  • One Fuse Puller Kit required for a three-pole, fusible, 240 V or 600 V heavy duty switch.

  • Fuse Puller Kits can be field installed on switches manufactured since February, 1980

Copper lug kits available for field or factory installation.

• UL Listed

• NEMA Type 12/12K and NEMA Type 4/4X/5 stainless steel switches, UL Marine Listed

  • Available on 30–200 A safety switches

  • Factory installed copper lug kit bear the manifest for use on vessels over sixty-five feet long

  • Field installed copper lug kit do not bear the manifest for use on vessels over sixty-five feet long

• For field installation, order copper lug kits, see Copper Lug Kit

• For factory installation of copper lugs add suffix SLC to catalog number

200 A heavy duty F-series switches are supplied standard with lugs suitable for one wire per phase. For two wires per phase and neutral, order the Double Lug Kit.

• UL Listed

• Compression Lug Kits available for field installation

• Compression Lug Kits available for factory installation; Add suffix LK to standard catalog number

• Compression Lug Kits contain VCEL07512H1 Versa-Crimp™ Compression Lugs

• Order one Compression Lug Kit per switching pole and/or neutral, see Compression Lug Kits

Interlocks are used to prevent the operator from making an unauthorized operation. The key interlock system is a simple and easy method to ensure require operation in a predetermined sequence.

• UL Listed

• Factory installed on heavy duty and double throw safety switches:

  • Not available on hazardous location devices (NEMA Type 7 and 9)

  • Not available on fiberglass reinforced polyester (NEMA Type 4X)

• Add suffixes on switch catalog numbers as noted below:

  • KI = 1 lock per switch

  • KI2 = 1 lock with 2 cylinders per switch

  • KIKI = 2 separate locks per switch

Optional Lock-Off Guard Kit Installed

• UL Component Recognized; Marked

• Lock-Off Guard Kits are available for field installation, see Lock-Off Guard Kits

• Lock-Off Guard Kits are available factory installed by adding LOG suffix to switch catalog number

• Lock-Off Guard Kits cover the lockout/tagout opening when switch is in the ON position

• Lock-Off Guard Kits are designed to help prevent accidental misapplication of a lockout/tagout device

UL Listed

• Lock-ON Provisions allow the switch to be locked in the “ON” position

• Lock-ON Provisions are factory installed only by adding suffix SPLO

• Lock-ON Provisions accept one 3/8 in. (9 mm) hasp padlock

• Lock-ON Provisions are available factory installed on 30–1200 A, NEMA Type 1, 3R, 4/4X/5 stainless steel, 12 and 12K switches

Internal Barrier

• UL Component Recognized; Marked

• Internal Barrier Kits are field installed only

• Internal Barrier Kits provide IEC529 IP2X “finger safe” protection when door of enclosed disconnect switch is open

• Internal Barrier Kits are transparent; allows visual inspection of the switch

• Internal Barrier Kits’ convenient door allows:

  • Use of test probes without accessing fuses

  • Replacement of fuses without removing barrier

• Internal Barrier Kits helps prevent accidental contact with live parts

• UL Listed

• Special Paints comply with OSHA Standard 1910.144 and ANSI Specification Z535.1 for marking physical hazards

• Special Paints are powder coated

• Available on NEMA Type 1, 3R, 12 and 12K enclosures only

• To order Special Paint add suffixes as noted in Table 40 to the standard switch catalog number

  • Minimum order quantity 10 units

• UL Listed heavy duty switches are available painted with special safety colors

Voltage-indicating safety switches indicate when voltage is present, helping to prevent arc-flash hazards and electric shocks during maintenance work. Voltage-indicating safety switches can be combined with other safety features such as key interlock, viewing windows and lock on provisions.

• UL Listed

• Factory-installed only

• Order the indicators by adding the appropriate suffix shown in Table 41 to the switch catalog number

• Not available on NEMA Type 7 and 9 and NEMA Type 4 X, Fiberglass and Krydon™ Enclosures

• Not available on two- and three-pole, 200 A, NEMA Type 3R, double throw safety switches

See Fusible Safety Switches.

Available engraved and mounted on all heavy duty safety switches, except NEMA Type 7 and 9. Legend engraved in 1/4 in. (6 mm) high white letters on black background.

• UL Listed

• Customer to provide legend

• To order, add suffix NP to standard Cat. No.

  • Example: H363NP

• Field maintenance lubricant is available for servicing blade and jaw components in switches 600 V and below

• Catalog number SWLUB consists of one tube of BG20 High Performance Synthetic Grease manufactured by Dow Corning®

• SWLUB is available in warehouse stock, shipped individually or in multiples of 12 units per carton

• Systems equal or less than 10 kAIR SCCR; Any brand of circuit breaker or fuse not exceeding the ampere rating of the switch may be used in conjunction with a non-fusible safety switch, see Non-Fusible Safety Switches

• Systems above 10 kAIR SCCR; The UL Listed short circuit current rating for Square D non-fusible switches is based upon the switch being used in conjunction with fuses or Square D circuit breakers or Mag-Gard motor circuit protectors, see Non-Fusible Safety Switches.