English – Burkert Type 8643 User Manual
Page 11

8643 - 11
english
Dependable IP protection.
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Freedom in the assignment of the individual signals thanks to the FOUN-
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DATION Fieldbus' DO and DI function blocks.
power I/o Box technical features
Available optionally as a 2-lead or 4-lead device.
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Housing: Polyester, powder-coated aluminum.
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Protection class: IP65 (as electronic module, IP20 / IP30)
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Temperature range from –20 to +55 °C (see table in the EC Type
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Examination Certificate in the Annex)
Interfaces: FOUNDATION Fieldbus H1
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Outputs: 4x Ex-i DO; Inputs: 8x Ex-i DI
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Optional: LED module status display for inputs and outputs
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ATEX approval: II 2 (1) G Ex [ia] me IIC T4
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5.1.2 field of application
The Power I/O Box Type 8643 is designed for decentralized use in industrial
environments, especially the pharmaceutical, petrochemical and specialized
chemical industries.
It meets the specifications for the protection classes IP20/IP30 (as an elec-
tronic module) and IP65 (in aluminum or polyester housings).
danGer!
hazard due to electrical voltage!
The Power I/O Box Type 8643 is designed with ignition protection type
Ex-e (increased safety).
Switch off the system's operating voltage before working on the Power
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I/O Box Type 8643!
noTe!
When using the Power I/O Box Type 8643 in a control cabinet, ensure that:
the control cabinet is also approved for use in an explosive environment,
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the control cabinet is dimensioned sufficiently large to exhaust the waste
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heat out of the cabinet in a suitable manner,
the temperature inside the control cabinet does not exceed the permis-
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sible operating temperature of the Power I/O Box Type 8643!