IEC 60309 H.P. Rated
Pin and Sleeve
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Sequential contacts engagement during mating
and un-mating
IEC configurations specific to each voltage and
amperage to prevent interchangeability of voltages
Watertight 4X Nonmetallic Supertough® nylon
body
Color coded by voltage
Applications
 Waste water
 Welders
 Computer rooms
 Outdoors
 Food processing
Insulgrip® Pin and Sleeve
• UL 1686-C1 configuration standard
• Non-Metallic Insulated housing
reduces the likelihood of electrical
shock during mating and un-mating
• UL Type 4X water tight
• Corrosion and impact resistant
• Interchangeable - Mates with
Crouse-Hinds, Appleton and
Killark devices
Reverse Service Pin and Sleeve
•Finger-safe installation for generators & portable power
•Mechanical interlock to prevent plugging and unplugging while energized
Arc Flash Safety Products
•Mechanically interlocked devices eliminate
breaking circuit under load providing safe
connections to portable equipment
•Hubbell Mechanical Interlock devices serve as
both power source and disconnect
•UL/CSA certified as a manual motor starter and
also suitable as a disconnect
Arc Flash Safety Products
Mechanical Interlocks
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Can not be plugged or unplugged while
receptacle is energized
No exposed “Hot” terminals
UL certified for 4X application
High impact Valox housing
Pin & Sleeve outlet
Provides Lock-out
20, 30, 60 and 100 amp
Fused and Non-Fused
IEC309, UL1686 C1 & Twist-Lock®
Arc Flash Safety Products
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NFPA require equipment enclosures to be
accessed only by qualified personnel
NFPA 70E: Electrical equipment enclosures can
ONLY be accessed by qualified personnel with
extensive protective clothing and equipment,
including fire-resistant suits and hoods with nonconductive wands.
NFPA 79: Electrical Standard for Industrial
Machinery
• ALL utility receptacles must be GFCI protected
• ALL external utility receptacles must be covered
• ALL covers must maintain enclosure rating
Motor Disconnects and
Compliance with NEC® 430
and NFPA 70E®
Motor Controllers
vs. Disconnect Switches
NEC Section 430.102(B) requires each motor controller to have a disconnect within line of sight from
the motor and driven equipment. NEC Section 430.109(A)(6) recognizes that a manual motor
controller and disconnect can be the same unit. Hubbell’s Circuit-Lock® Unfused Disconnect
Switches are UL listed as a manual motor controller and also “suitable as a motor disconnect” and
meet these code requirements. In order to comply with the visual verification requirements of NFPA
70E without the need for PPE and FPB calculations, a H.P. rated plug and connector should be used in
the circuit between the disconnect switch and the motor.
Hubbell H.P. rated IEC pin & sleeve plugs and connectors can be used in conjunction with CircuitLock® Disconnect Switches to provide a visual verification of disconnecting means for servicing or
changing out a plug connected motor.
NFPA 70E®: When servicing or changing out a plug connected motor, the Circuit-Lock Disconnect
switch’s red handle must be turned to the “Off” position and the switch “Locked Out” per OSHA
lock-out/tag-out regulations. Visual verification of motor de-energization requirements of NFPA 70E
are met when the plug is separated from the mating connector. Applications where motors are hard
wired from the disconnect switch will require some level of PPE and FPB calculations.
Circuit-Lock® Motor
Disconnect Switches
Modular Power - Linkosity®
•NEC® Article 670 on Industrial Machinery
refers to NFPA 79-2007, Electrical Standard for
Industrial Machinery where sections 14.1.2.2
and 14.1.5.1 specifically indicate that
molded connections factory-applied to cable
and cords are to be permitted.
•NEC® 336.10(7) Permits type TC-ER cable in
transitions between cable trays and the
utilization equipment or devices when secured
at intervals not more than 6 ft without
continuous support.
•Sealed cable sets prevent condensation
building up in raceway and penetrating the
motor head