| | | Explosion Proof Ratings QX Models NEC/CEC Class I Divisions 1 and 2 Groups B, C, D Class II Divisions 1 and 2 Groups E, F, G IEC/ATEX EExd IIC T5 - T6, Zones 1 & 2 Nonincendive Ratings ON Models NEC/CEC Class I Division 2 Groups A, B, C, D Class II Division 2 Groups F, G IEC/ATEX EEx nA IIC T5, Zone 2 Intrinsically Safe Ratings ON Models (Function Dependent) NEC/CEC Class I Divisions 1 and 2 Groups A,B,C,D Class II Divisions 1 and 2 Groups E,F,G IEC/ATEX EEx ia IIC T5, Zones 0.1.& 2 | | |