Dwyer Mark User Manual
Page 4
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SPECIFICATIONS
General
Product Ratings:
Weatherproof and flameproof. NEMA 1, 2, 3, 3R, 3S, 4, 4X, 6, 7, 9, 12, 13. (Housing styles M and N are NEMA 4,
4X only.)
UL rated: Class I, Div. 1 & 2, Groups B, C, D (Some units available for Group A, consult factory); Class II, Div. 1 & 2,
Groups E, F, and G.
CSA rated: Class I, Div. 1 & 2, Groups A, B, C, D; Class II, Div. 1 & 2, Groups E, F, and G; Submersible to 50 feet.
ATEX Compliant:
-B suffix, directive 94/9/EC,
KEMA 03 ATEX 2391X,
0344
II 2G Ex d IIC T6 Gb for -25°C/-40°C/-50°C ≤ Tamb ≤ 70°C and T5 for -
25°C/-40°C/-50°C ≤ Tamb ≤ 80°C optional wording depending on output and switch type selected. Compliant per EN
60079-0:2009 and EN 60079-1:2007.
–IS suffix directive 94/9/EC,
KEMA 03 ATEX 1392X,
0344
II 1G Ex ia IIC T4 Ga.
(Switch type C is not available with ATEX; Switch type B is not available with ATEX intrinsically safe, –IS suffix).
Compliant per EN 60079-0: 2009, EN 60079-11: 2007, and EN 60079-26: 2007.
IECEx Compliant:
–IE suffix IECEx DEK II.0056X Ex d IIC T6 Gb for -25°C/-40°C/-50°C ≤ Tamb ≤ 70°C and T5 for -25°C/-40°C/-50°C ≤
Tamb ≤ 80°C optional wording depending on output and switch type selected. Compliant per IEC 60079-0: 2007; IEC
60079-1: 2007.
–II suffix IECEx DEK II.0061X II Ex ia IIC T4 Ga. Compliant per EN 60079-0:2007 EN 60079-11:2006 and EN 60079-
26:2006. (Switch type C is not available with IECEx; Switch type B is not available with IECEx intrinsically safe, II
suffix).
INMETRO Compliant:
IM suffix, Certificate: NCC 13.02338 X; Marking: Ex ia IIC T4 Ga
EM suffix, Certifcate: NCC 13.02339 X; Marking: Ex d IIC T6 Gb or Ex d IIC T5 Gb
Electrical Connections: Screw terminal. Optional factory sealed leads that are 36˝
(914.4 mm) of 16 AWG.
Conduit Connection: 3/4˝ female NPT standard. Optional one or two 1/2˝ female NPT. M25 and M20 optional
(Standard on SAA certified products).
Mounting Orientation: Not position sensitive.
Weight: 4 to 6 lb (1.5 to 3.0 kg).
Operational Life: Over 10,000,000 cycles.
Maximum Altitude: 2000 meters.