15
95-8723
3.4
APPENDIX B
CSA APPROVAL DESCRIPTION
U5015
Class - C481804 - Signal Appliances - Systems - For Hazardous Locations
Ex db ia IIC T4 IP44
Applicable Requirements
C22.2 No. 0-M91
General requirements - Canadian Electrical Code, Part II
C22.2 No. 60529: 2015
Degrees of protection provided by enclosures (IP Code).
C22.2 No. 610101-1: 2012
Safety requirements for electrical equipment for measurement, control,
and laboratory use - Part 1: General Requirements.
C22.2 No. 60079-0: 2015
Electrical apparatus for explosive gas atmospheres - Part 0: General
Requirements
C22.2 No. 60079-1: 2016
Explosive atmospheres - Part 1: Equipment protection by flameproof
enclosures "d".
C22.2 No. 60079-11: 2014
Electrical apparatus for explosive gas atmospheres - Part 11: Intrinsic
Safety "i".
Special Conditions For Safe Use X:
1. Field wiring must be in accordance with CEC Part 1, Section 18.
2. The enclosure must be bonded to ground according to CEC Part 1, Section 18.
3. For enclosures with metric conduit entries certified metric to NPT adaptors shall be used.
4. All unused openings must be closed using suitably certified plugs.
5. A seal shall be installed within 18" of enclosure.
6. Measures must be taken to avoid ignition due to mechanical impact.
7. IPx4 maintained only when mounted on a ceiling.
