Technical Bulletin

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For complete listing of products see our full line catalogs.
14
Hubbell’s unfused disconnect and mechanical interlock switches are ideal
for applications containing ammable gases or vapors and ignitable dusts or
bers. Hubbell devices are also suitable for use in outdoor or indoor damp,
wet, and dirty locations, or in areas where frequent wash downs, heavy rain, or
water-spray routinely occurs.
• Plug and switch are interlocked for superior safety
• UL1686 C1 listed and fully interchangeable with other UL1686 C1 devices
• Compact size and footprint for easy placement
• NEMA 4X with receptacle lid turned shut or with plug locking ring tightened
• Compact size provides application flexibility and cost savings
• Fewer cover bolts reduces installation and maintenance time
• Removable ductile mounting feet adjust to irregular mounting surfaces
• UL 98 certified switch
• Class I, Div. 1 & 2, Groups B,C,D
• Class l, Zones 1 & 2, Groups llB+ H2, llA
• Class II, Div. 1 & 2, Groups E,F,G
• Class III
• NEMA 3, 4, 4X, 7(B,C,D), 9(E,F,G)
Hazardous Location Non-Fused UL1686 Mechanical Interlocks
Hazardous Location Non-Fused Disconnect Switches
Harsh Locations
Description Circuit Receptacle Plug
30 AMP
600V AC
2W 3P
3W 4P
HBLVSQ3023
HBLVSQ3034
HBLVP3385
HBLVP3485
60 AMP
600V AC
2W 3P
3W 4P
HBLVSQ6023
HBLVSQ6034
HBLVP6385
HBLVP6485
Notes: HBLVSQ 30 Amp models come standard with 1" drilled and tapped conduit openings top
and bottom plus two 1" x ¾" reducers and one ¾" close-up plug for maximum flexibility. 60 amp
models come with one 1½" opening on top and bottom and one 1½" close-up plug.
Description Rating Catalog Number
Disconnect switch,
3 Pole 600V AC/230V DC
30A
60A
100A
HBLB7NFD13A
HBLB7NFD26A
HBLB7NFD21A
Disconnect switch with auxiliary contact,
3 Pole 600V AC/230V DC
30A
60A
100A
HBLB7NFD13AA
HBLB7NFD26AA
HBLB7NFD21AA
NFPA 33 Standard for
Spraying Applications
Using Flammable or
Combustible Materials
covers spray application of
ammable or combustible
materials by a variety of methods.
Contains requirements for the
maintenance of safe conditions
as well as personal safety.
NFPA 34 Standard for
Dipping, Coating and
Printing Processes Using
Flammable or Combustible
Liquids
covers re and
explosive hazards. Includes
water-borne and water reducible
materials.