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Product focus: AS enclosures with UL certification (E356725)

Product focus: AS enclosures with UL certification (E356725)

The AS enclosures are normally installed in the industrial plants, with potential hazardous atmospheres of gases and combustible dusts. These enclosures are primarily used with the function of:
• Derivation and/or cables collecting from the field and to the control rooms, for analogic signals and/or digital signals end/or measure signals what termocouples, signals 4 ÷ 20 mA
• Clearing barrier signals and/or of transposition signals from field to control room what Field-Bus; Mod-Bus and Profi-Bus
• Control and start-stop of apparatus as motors, fans, pumps
• Reading of physical greatness which flow, level, pressure, temperature, current, voltage, frequency, speed control
These enclosures can be made out of GRP and they consist of a body and cover that are assembled together by screws and contain an O ring gasket for the conservation of the IP degree. Terminal blocks, pilot lights, pushbuttons, and other auxiliary devices can be installed.
Nuova ASP AS enclosures have the UL certification, here below its technical features:

Type of protection The marking string for USL – “Class I, Zone 1, AEx e IIC; IP66 Zone 21, AEx tb IIIC
The marking string for CNL – “Ex e IIC; Class II, Groups E, F and G; IP66.” Additional
methods of protection are marked depending on installed components through the wall
of the control station enclosure where the ‘e’ protection is relied upon for protecting
enclosure (d, m, e, q, ia,ib).
Alternative marking: Class I Div.2 Groups A, B, C and D
Standards USL (For USA):
UL 60079-0
UL 60079-7
ISA 60079-31:2009
CNL (for Canada):
CAN/CSA C22.2 No. 60079-0:11
CAN/CSA C22.2 No. 60079-7:12
CAN/CSA C22.2 No. 60079-31:2012
Degree of protection IP66
Ambient temperature -40°C + 40°C -> T6 / T85°C
-40°C +55°C -> T5 / T100°C
Other available certifications ATEX
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