Operating Instructions ET-xx8 / MT-xx8
Function and device design
Page 32 of 84
R. STAHL HMI Systems GmbH / OI_ET_MT-xx8_en_V_01_02_03.docx / 10.03.2021
4.8.3
Ex classification FM USA
US-American Ex classification according to ANSI/UL 60079-0.
ET-xx8 HMI series
Version
Ex marking
Gas
Class I, Zone 1 AEx eb q [ia op is Ga] IIC T4 Gb
Class I, Div. 2 Groups A, B, C, D T4
Dust
Zone 21, AEx tb [ia op is Da] IIIC T115°C Db
Class II, Div. 2 Groups F, G T4
Class III
MT-xx8 HMI series
Version
Ex marking
Gas
Class I, Zone 2 AEx nA nR [ia op is Ga] IIC T4 Gc
Class I, Div. 2 Groups A, B, C, D T4
Dust
Zone 22, AEx tc [ia op is Da] IIIC T115°C Dc
Class II, Div. 2 Groups F, G T4
Class III
4.8.4
Ex classification FM Canada
Canadian Ex classification according to CAN/CSA-C22.2 No.60079-0.
ET-xx8 HMI series
Version
Ex marking
Gas
Ex eb q [ia Ga] IIC T4 Gb
Class I, Div. 2 Groups A, B, C, D T4
Dust
Zone 21, Ex tb [ia Da] IIIC T115°C Db
Class II, Div. 1 Groups E, F, G T4
Class III
MT-xx8 HMI series
Version
Ex marking
Gas
Ex nA nR [ia Ga] IIC T4 Gc
Class I, Div. 2 Groups A, B, C, D, T4
Dust
Zone 22, Ex tc [ia Da] IIIC T115°C Dc
Class II, Div. 2 Groups E, F, G T4
Class III
