European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
www.e2s.com
Tel: +44 (0)208 743 8880
Document No. D211-00-471-IS
Issue 3
20-08-22
Sheet 2 of 6
3.4. NEC & CEC Ratings
NEC & CEC Class / Division Ratings for US / Canada
Standards
UL1971 Ed. 3 2018
UL1638 Ed. 5 2017 / CAN/ULC-S526 Ed. 4
CSA C22.2 No. 205-17
UL 121201-2021 Edition 9
CAN/CSA C22.2 No. 213-17 Edition 3
Ratings
D2xB1LD3:
Class I Div 2 ABCD T4 Ta -40°C to 50°C
Class II Div 2 FG T6 Ta -40°C to +50°C
Class III Div 1&2 Ta -40°C to +50°C
The certification approval has validated continuous use up to
38°C and are for transient use up to 50°C ambient.
Installation must be carried out in compliance with the National
Electric Code / Canadian Electric Code
NEC Class / Zone ratings US
Standards
UL 60079-0 (Ed. 7):
Explosive Atmospheres - part 0: Equipment - General
Requirements
UL 60079-7 (Ed. 5):
Explosive Atmospheres - Equipment Protection by Increased
Safety "e"
UL 60079-31 (Ed. 2)
Explosive Atmospheres - Equipment Dust Ignition Protection by
Enclosure "t"
Ratings
D2xB1LD3:
Class I Zone 2 AEx ec IIC Gc T4 Ta -40°C to
+50°C
AEx tc IIIC T75°C Dc Ta -40°C to +50°C
Installation must be carried out in compliance with the National
Electric Code.
CEC Class / Zone ratings Canada
Standards
CAN/CSA C22.2 No. 60079-0 (Ed. 4) 02/2019
Explosive Atmospheres - Part 0: Equipment - General
Requirements
CAN/CSA C22.2 No. 60079-7 (Ed. 2)
Explosive Atmospheres - Equipment Protection by Increased
Safety "e"
CAN/CSA C22.2 No. 60079-31 (Ed. 2)
Explosive Atmospheres - Equipment Dust Ignition Protection by
Enclosure "t"
Rating
D2xB2LD3:
Ex ec IIC Gc X T4 Ta -40°C to +50°C
Ex tc IIIC T75°C Dc X Ta -40°C to +50°C
Installation must be carried out in compliance with the Canadian
Electric Code
4) Zones, Gas / Dust Groups and
Temperature Classification
When connected to an approved system the D2XB1LD3 LED
beacon may be installed in:
Area Classification
Zone 2
Explosive gas air mixture not likely to occur in
normal operation, and if it does, it will only
exist for a short time.
Zone 22
Explosive dust air mixture not likely to occur in
normal operation, and if it does, it will only
exist for a short time.
Gas Groupings
Group IIA
Propane
Group IIB
Ethylene
Group IIC
Hydrogen and Acetylene
Temperature Classification for Gas Applications
T1
450ºC
T2
300ºC
T3
200ºC
T4
135°C
Dust Groupings
(ATEX / IECEx / UKEX only)
Group IIIA
Combustible Flyings
Group IIIB
Non-conductive Dust
Group IIIC
Conductive Dust
Maximum Surface Temperature for Dust Applications
(ATEX / IECEx / UKEX only)
D2xB1LD3:
75°C
Equipment Category
3G / 3D
Equipment Level Protection
Gc, Dc
Ambient Temperature Range
-40°C to +50°C
IP Rating
IP6X to EN/IEC60079-0
IP66 to EN60529
To maintain the ingress protection rating, the two off cable entries
must be fitted with suitably rated, certified cable entry and/or
blanking devices during installation.
Type Rating
Per UL50E / NEMA250: 4 / 4X / 3R / 13
