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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)

Industrial Control Equipment

The term "Industrial Control Equipment" encompasses more than 30 different product categories and 100 different devices. This can make finding out where your product fits in, what specific requirements apply, and how to interpret those requirements a complicated process. We want to make that process easier for you.

We've created these pages to help you:

• understand the scope of UL's services for industrial control equipment;
• identify the UL and IEC Standards that are needed for your specific industrial control product;
• answer your design questions about UL 508, the Standard for Industrial Equipment, by providing you with easy to use online application guidelines; and
• find resources to answer your technical questions.

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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