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Select one: Across-the-line contactors, motor rated (NLDX) Across-the-line contactors, non-motor rated (NRNT) Across-the-line contactors, pilot duty (coil) rated (NKCR) Autotransformer starters (NLDX) Auxiliary contacts (NKCR) Brakes, electro-mechanical (NMTR) Clutches (NMTR) Combination motor controllers (NKJH) Definite purpose motor controllers (NLDX) Definite purpose motor starters (NLDX) Draw-out vacuum contactors-1500 V or less (NLDX) Drives (NMMS) Drum switches (NLRV) Dynamic brakes (NMMS) Enclosures (CYIV, EOFI, BGUZ) Float switches (NKPZ) Foot switches, motor rated (NLRV) Foot switches, non-motor rated (NRNT) Foot switches, pilot duty (coil) rated (NKCR) Key-operated switches (NKCR) Lamp dimmers, theater (NMTR) Light towers (NKCR) Limit switches (NKCR) Line reactors (NMTR) Line rheostats (NMTR) Machine (CAM) operated switches (NKCR) Machine (CAM) operated switches, manual (NLRV) Magnetic motor controllers (NLDX) Manual motor controllers (NLRV) Manual motor starters (NLRV) Mercury tube switches, motor rated (NLDX) Mercury tube switches, non-motor rated (NRNT) Motor-starting autotransformers (NMTR) Motor-starting resistors (NMTR) Motor-starting rheostats (NMTR) Overload relays, mechanical or electronic (NKCR) Panels, industrial control (NITW) Pendant stations (NKCR) Phase monitors (NKCR) Pilot lights (NKCR) Plug-in relays, magnetic (NLDX) Plug-in relays, manual (NRNT) Plug-in relays, pilot duty (coil) rated (NKCR) Power supplies (NMTR) Pressure switches (NKPZ) Programmable controllers (NRAQ) Proximity switches (NRKH) Pushbuttons (NKCR) Pushbutton stations (NKCR) Reduced voltage solid state motor controllers (soft starters) (NMFT) Reduced voltage starters (NLDX) Relays, magnetic (NLDX) Relays, manual (NRNT) Relays, pilot duty (coil) rated (NKCR) Relays, solid state motor rated (NMFT) Relays, solid state non-motor rated (NRNT) Relays, solid state pilot duty (coil) rated (NKCR) Reversing contactors (NLDX) Reversing starters (NLDX) Servo Drives (NMMS) Soft starters (NMFT) Solid state contactors, motor rated (NMFT) Solid state relays, motor rated (NMFT) Solid state relays, non-motor rated (NRNT) Solid state relays, pilot duty (coil) rated (NKCR) Solid state time-delay relays (NMFT) Stepper motor drives (NMMS) Time-delay relays, magnetic (NLDX) Time-delay relays, manual (NRNT) Time-delay relays, pilot duty (coil) rated (NKCR) Vacuum contactors, over 1500 V (NJHU) Vacuum contactors, under 1500 V (NLDX) Vacuum-operated switches (NKPZ) Wye-delta starters (NLDX)

UL Staff Contacts

Have a question about UL's requirements for industrial control equipment?Contact one of our industrial control equipment technical staff. Select the category you're interested in to find the technical contact closest to you and the contact information will appear below.

If you are looking for general information about submitting a product to UL, please contact a customer service representative near you, or check out our section on "Submitting a product to UL.".

UL's industrial control equipment categories

• Auxiliary Devices (NKCR)
• Motor Controllers (NKPZ)
• Auxiliary Devices Classified in Accordance with IEC Publications (NVZG)
• Combination Motor Controllers (NKJH)
• Magnetic Industrial Control Equipment (NLDX)
• Manual Industrial Control Equipment (NLRV)
• Industrial Control Switches (NRNT)
• Miscellaneous Motor Controllers (NMFT)
• Programmable Controllers (NRAQ)
• Programmable Controllers classified in accordance with IEC Publications (NWCS)
• Industrial Control Panels (NITW)
• Industrial Control Panels classified in accordance with IEC Publications (NVZS)
• Miscellaneous Apparatus (NMTR)
• Power Conversion Equipment (NMMS)
• Proximity Switches (NRKH)
• Proximity Switches classified in accordance with IEC Publications (NWEU)
• Cabinets and Cutout Boxes (CYIV)
• Factory Automation Equipment (GPNY)
• Industrial Control Equipment (NIMX)
• Motor Speed Controllers, Non-Industrial Type (PRNX)

Contact Customer Service

UL Customer Service Professionals are available from 7:00 AM - 6:00 PM across all North American time zones to provide you with a quote or project status, or to offer you assistance in resolving non-technical questions. Contact a customer service professional, learn how to submit a product for testing or begin the product submission process.

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