Technical specifications
14.1 Standards, approvals and safety notes
Distributed I/O system
270 System Manual, 12/2016, A5E03576849-AG
Underwriters Laboratories Inc., complying with
● UL 508 (Industrial Control Equipment)
● CSA C22.2 No. 142 (Process Control Equipment)
● ANSI/ISA 12.12.01
● CSA C22.2 No. 213 (Hazardous Location)
APPROVED for use in
Class I, Division 2, Group A, B, C, D Tx;
Class I, Zone 2, Group IIC Tx
Installation Instructions for cULus haz.loc.
● WARNING - Explosion Hazard - Do not disconnect while circuit is live unless area is
known to be non-hazardous.
● WARNING - Explosion Hazard - Substitution of components may impair suitability for
Class I, Division 2 or Zone 2.
● This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D; Class I,
Zone 2, Group IIC; or non-hazardous locations.
WARNING: EXPOSURE TO SOME CHEMICALS MAY DEGRADE THE SEALING
PROPERTIES OF MATERIALS USED IN THE RELAYS.
CSA C22.2 (Industrial Control Equipment Motor Controllers)
UL 60947-4-2 Low-Voltage Switchgear and Controlgear
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