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Control Panel UL Certifications

Carotek offers several certifications on all of our control systems according to your particular process requirements.  We are a UL 508, 698 and 1203 certified panel shop for industrial control panels (standard and hazardous). We can do certification testing for your existing control panels - only in our facility.  Testing in your facility must be conducted by UL.

Hazardous Location Certified

UL 508 certified Our latest certification is in the UL’s Hazardous Location Industrial Control Panel Program.  UL certifies industrial control panels for use in ordinary locations, for use in hazardous locations, or for use relating to hazardous locations. These certification services are accepted in every jurisdiction across North America. The industrial control panels covered by these UL services are assemblies of components such as motor controllers, overload relays, fused disconnect switches, circuit breakers and related control devices. These related control devices may include pushbutton stations, selector switches, pilot lights, control relays and the like. Associated wiring terminals and similar components are also included.

Explosion Proof - UL 1203

  • 1.1 These requirements cover explosion-proof and dust-ignition-proof electrical equipment for installation and use in hazardous (classified) locations, Class I, Division 1, Groups A, B, C, and D, and Class II, Division 1, Groups E, F, and G, in accordance with the National Electrical Code, NFPA 70.
  • 1.2 These requirements also cover explosion-proof electrical equipment for installation and use in Class I, Zone 1, Groups IIA, IIB, and IIC hazardous (classified) locations and dust-ignition-proof equipment for use in Zone 20, 21, and 22 locations.
  • 1.3 These requirements also cover explosion-proof electrical equipment that has been investigated for use in one or more specific gas or vapor atmospheres with or without additional Class I Groups. See 60.6.
  • 1.4 These requirements do not cover equipment for use in hazardous (classified) locations specifically covered in a separate standard.
  • 1.5 These requirements do not cover electrostatic devices, circuits or systems; refrigeration system controllers or the internal construction of electrical instruments such as meters.
  • 1.6 These requirements cover equipment for use under the following atmospheric conditions:
    • a)    A minimum ambient temperature of minus 50°C (minus 58°F);
    • b)    An oxygen concentration not greater than 21 percent by volume; and
    • c)    A nominal barometric pressure of one atmosphere.
  • 1.7 Equipment covered by this standard shall also comply with the applicable requirements for similar equipment for use in ordinary unclassified locations.

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