ABB 266 MODBUS - Ex Explosion Protection Aspects (United States and Canada)

Appendix E Hazardous area ratings and considerations
266 MODBUS® multivariable transmitter User manual 2105216 Rev. AB | 101
E.2 Ex Explosion protection aspects (United States and Canada)
According to Factory Mutual standards for the assurance of fundamental safety requirements in the United States of America.
Ratings are with or without integrated digital display.
— FM 3600: “Approval Standard for Electrical Equipment for use in Hazardous (Classified) Locations, General Requirements”.
— FM 3611: “Approval Standard for Non-Incendive Electrical Equipment for Use in Class I and II, Division 2 and Class III Division
1 and 2 Hazardous (Classified) Locations”.
— FM 3615: “Approval Standard for Explosion-proof Electrical Equipment General Requirements”.
— FM 3810: “Approval Standard for Electrical Equipment for Measurement, Control and Laboratory Use”.
— NEMA 250: “Enclosures for Electrical Equipment (1000 Volts Maximum)”.
According to CSA standards for the assurance of fundamental safety requirements in Canada. Ratings are with or without
integrated digital display.
— C22.2 No 142-M1987: “Process Control Equipment Industrial Products.
— C22.2 No 213-M1987: “Non-incendive Electrical Equipment for Use in Class I, Division 2 Hazardous Locations Industrial
Products”.
— C22.2 No 30: “Explosion-Proof Enclosures for Use in Class I Hazardous Locations Industrial Products”.
— C22.2 No 25: “Enclosures for Use in Class II Groups E, F and G Hazardous Locations”.
— CSA-C22.2 No 94-M91: Special Purpose Enclosures Industrial Products”.
— ANSI/ISA 12.27.01: Requirements for Process Sealing Between Electrical Systems and Flammable or Combustible Process
Fluids”.
E.2.1 Type of protection: "Explosion-proof" Certification (Code EB)
Code EB ratings: The 266 transmitters have FM certification for the following hazardous location protections:
— Explosion-proof (US): Class I, Division 1, Groups ABCD, T5 for Ta = -50 °C to +85 °C
— Flame-proof (US): Class I, Zone 1, AEx d, IIC, T4 for Ta = -50 °C to +85 °C
— Explosion-proof (Canada): Class I, Division 1, Groups BCD, T5 for Ta = -50 °C to +85 °C
— Flame-proof (Canada): Class I, Zone 1, Ex d, IIC, T4 for Ta = -50 °C to +85 °C
— Dust Ignition Proof (US and Canada): Class II, III Division 1, Groups EFG, T5 for Ta = -50 °C to +85 °C
— Environmental enclosure rating: Type 4X