Zone 1
Explosive gas atmosphere likely to occur in normal operation
Zone 2
Explosive gas atmosphere unlikely to occur and, if it does, only for a short period
Zone 21
Explosive dust atmosphere likely to occur in normal operation
Zone 22
Explosive dust atmosphere unlikely to occur and, if it does, only for a short period
# General
Product type: Flameproof enclosure
Brand: Pepperl+Fuchs
Series: EJB*
Material: Copper-free aluminium alloy
Finish: RAL 7005 epoxy coating (grey)
Ambient temperature: -60 … +60 °C depending on installed components
# Certifications
ATEX certificate: INERIS 14 ATEX 0022X, INERIS 14 ATEX 9010U
IECEx certificate: IECEx INE 14.0029X, IECEx INE 14.0028U
Marking: II 2 GD Ex db IIB+H2 T* Gb, Ex tb IIIC T** °C Db
Temperature class: T6/T85 °C to T3/T200 °C depending on configuration and power dissipation
North American approval: cULus E482035 (empty enclosure)
# Electrical
Operating voltage: up to 1000 V AC / 1500 V DC (ATEX/IECEx)
Operating current: up to 1600 A
Power dissipation: from 51 W (EJB0) to 1616 W (EJB20A) at T4/+40 °C
# Mechanical
Dimensions: from 201×136×150 (EJB0) to 937×687×499 mm (EJB20A)
Degree of protection: IP66, IP66/IP67 with O-ring
Cover fixing: Stainless steel socket cap screws
Entry threads: Metric 1.5 mm pitch or NPT
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